{"id":1752,"date":"2026-07-24T08:56:40","date_gmt":"2026-07-24T08:56:40","guid":{"rendered":"https:\/\/haktak.com\/?p=1752"},"modified":"2026-07-24T08:56:42","modified_gmt":"2026-07-24T08:56:42","slug":"how-to-design-custom-thermal-pad-2026","status":"publish","type":"post","link":"https:\/\/haktak.com\/fr\/how-to-design-custom-thermal-pad-2026\/","title":{"rendered":"Comment concevoir un coussin thermique personnalis\u00e9 pour votre produit en 2026"},"content":{"rendered":"<div class=\"product\"><div class=\"product\">\n<p class=\"wp-block-paragraph\">Un pad thermique sur mesure ne devrait pas commencer par une couleur, une \u00e9paisseur ou une grande valeur en W\/mK. Il devrait commencer par le produit.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"889\" height=\"649\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-6.png\" alt=\"how-to-design-custom-thermal-pad-2026\" class=\"wp-image-1412\" style=\"aspect-ratio:1.3697996918335902;width:621px;height:auto\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-6.png 889w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-6-300x219.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-6-768x561.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-6-16x12.png 16w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-6-600x438.png 600w\" sizes=\"(max-width: 889px) 100vw, 889px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">O\u00f9 la chaleur est-elle g\u00e9n\u00e9r\u00e9e ? O\u00f9 peut-elle se dissiper ? Quel espace doit \u00eatre combl\u00e9 une fois toutes les tol\u00e9rances prises en compte ? Quelle force le composant et PCB peuvent-ils supporter ? L\u2019interface doit-elle \u00e9galement assurer une isolation \u00e9lectrique ? Que se passe-t-il apr\u00e8s cinq ans d\u2019exposition \u00e0 la chaleur, au froid, aux vibrations et \u00e0 la pression ?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ces questions sont moins passionnantes que de parcourir un tableau de mat\u00e9riaux. Ce sont pourtant elles qui emp\u00eachent un pad thermique de se transformer en un rectangle bleu co\u00fbteux et pratiquement inutile.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The practical answer is straightforward: a custom thermal pad is designed by converting system requirements into a controlled material, thickness, compression window, shape, layer construction, validation plan, and production format. Thermal conductivity matters. The complete interface matters more.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Makes a Thermal Pad \u201cCustom\u201d in 2026?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A custom thermal pad is a pre-formed thermal interface material developed or converted for a specific assembly. Customization can be as simple as cutting a standard pad into a unique outline. It can also include a special material formulation, thickness, hardness, conductivity, dielectric target, reinforcement, tack level, adhesive layer, release liner, color, flame rating, packaging, or automated-placement format.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common custom options include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>non-standard thickness;<\/li>\n\n\n\n<li>softer or firmer compression response;<\/li>\n\n\n\n<li>higher or lower thermal conductivity;<\/li>\n\n\n\n<li>silicone-free or fluorosilicone chemistry;<\/li>\n\n\n\n<li>fiberglass or film reinforcement;<\/li>\n\n\n\n<li>one-sided or selective PSA;<\/li>\n\n\n\n<li>custom die-cut holes, slots, tabs, and keep-outs;<\/li>\n\n\n\n<li>kiss-cut arrays or roll-fed parts;<\/li>\n\n\n\n<li>permanent insulation film;<\/li>\n\n\n\n<li>part marking, liner printing, and lot traceability.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">HakTak\u2019s <a href=\"https:\/\/haktak.com\/fr\/understanding-thermal-interface-material\/\">sur les mat\u00e9riaux d\u2019interface thermique<\/a> provides the wider context. Thermal pads are one TIM family among grease, phase-change materials, graphite, putty, gels, liquid gap fillers, and thermally conductive adhesives.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Custom Does Not Always Mean a New Chemical Formula<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Many successful projects use an existing material grade with a custom thickness, shape, liner, or packaging format. That is usually faster and easier to qualify than developing a new formulation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A new material formula makes sense when standard products cannot meet a critical requirement, such as unusually low compression force, a specific conductivity-hardness balance, restricted siloxane content, fuel resistance, unique dielectric behavior, or a special processing format.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The more chemistry changes, the more validation and change control are needed. No surprise there.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 1: Define the Heat Source and Cooling Destination<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Every custom thermal pad needs a defined heat path:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">source de chaleur -&gt; pad thermique -&gt; diffuseur thermique, bo\u00eetier, dissipateur thermique ou plaque froide -&gt; air ambiant ou liquide de refroidissement<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The design team should record:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>component or module name;<\/li>\n\n\n\n<li>power dissipation under relevant duty cycles;<\/li>\n\n\n\n<li>maximum allowed case or junction temperature;<\/li>\n\n\n\n<li>available contact area;<\/li>\n\n\n\n<li>heat sink or housing material;<\/li>\n\n\n\n<li>ambient or coolant temperature;<\/li>\n\n\n\n<li>condition de d\u00e9bit d\u2019air ou de liquide de refroidissement ;<\/li>\n\n\n\n<li>budget de r\u00e9sistance thermique allou\u00e9 \u00e0 l\u2019interface.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">La puissance seule ne suffit pas. Un composant de 20 W r\u00e9parti sur une grande embase m\u00e9tallique se comporte diff\u00e9remment d\u2019un point chaud de 20 W situ\u00e9 dans un bo\u00eetier minuscule. La densit\u00e9 de flux thermique, la r\u00e9sistance thermique d\u2019\u00e9talement et la surface de contact d\u00e9terminent les exigences relatives \u00e0 l\u2019interface.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cartographiez la surface de contact utile, pas seulement la taille du composant<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le pad thermique doit couvrir la zone o\u00f9 les deux surfaces peuvent \u00e9tablir un contact utile. Le mat\u00e9riau d\u00e9passant sur un espace vide n\u2019am\u00e9liore pas le refroidissement. Il peut n\u00e9anmoins augmenter l\u2019effort d\u2019assemblage ou g\u00eaner les pi\u00e8ces voisines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La r\u00e9sistance simplifi\u00e9e du mat\u00e9riau est :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R = t \/ (k x A)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">o\u00f9 t d\u00e9signe l\u2019\u00e9paisseur comprim\u00e9e, k la conductivit\u00e9 thermique et A la surface de contact effective. Les performances r\u00e9elles tiennent \u00e9galement compte de la r\u00e9sistance de contact sur les deux surfaces, de la diffusion de la chaleur \u00e0 travers le bo\u00eetier et du reste du syst\u00e8me de refroidissement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u2019est pourquoi le pad ne peut pas \u00eatre con\u00e7u ind\u00e9pendamment du bo\u00eetier et du syst\u00e8me de fixation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 2 : mesurer l\u2019espace r\u00e9el et \u00e9tablir un cumul de tol\u00e9rances<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"1006\" height=\"664\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-15.png\" alt=\"\u00c9tape 2 : mesurer l\u2019espace r\u00e9el et \u00e9tablir un cumul de tol\u00e9rances\" class=\"wp-image-1354\" style=\"width:698px;height:auto\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-15.png 1006w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-15-300x198.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-15-768x507.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-15-600x396.png 600w\" sizes=\"(max-width: 1006px) 100vw, 1006px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019espace nominal CAD ne constitue qu\u2019une partie du probl\u00e8me. Les assemblages de production comprennent :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>tol\u00e9rance de hauteur du composant;<\/li>\n\n\n\n<li>\u00e9paisseur du joint de soudure;<\/li>\n\n\n\n<li>\u00e9paisseur et gauchissement de PCB;<\/li>\n\n\n\n<li>plan\u00e9it\u00e9 du bo\u00eetier;<\/li>\n\n\n\n<li>tol\u00e9rance d\u2019usinage ou de moulage du dissipateur thermique;<\/li>\n\n\n\n<li>compression du joint;<\/li>\n\n\n\n<li>couple de serrage des vis et variation de la force de serrage;<\/li>\n\n\n\n<li>\u00e9paisseur de l\u2019adh\u00e9sif;<\/li>\n\n\n\n<li>dilatation thermique sur la plage de temp\u00e9ratures de fonctionnement.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">La conception n\u00e9cessite trois valeurs : jeu minimal, jeu nominal et jeu maximal. Celui de HakTak <a href=\"https:\/\/haktak.com\/fr\/how-to-select-thermal-pad-thickness-for-electronics\/\">guide de s\u00e9lection de l'\u00e9paisseur du pad thermique<\/a> explique comment ces valeurs d\u00e9finissent la fen\u00eatre de compression utilisable.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Exemple simple d\u2019\u00e9cart<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Supposons qu\u2019un module \u00e9lectronique pr\u00e9sente les caract\u00e9ristiques suivantes :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00e9cart minimal : 0.85 mm;<\/li>\n\n\n\n<li>\u00e9cart nominal : 1.00 mm;<\/li>\n\n\n\n<li>\u00e9cart maximal : 1.25 mm.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Une pastille 1.0 mm ne peut pas assurer de mani\u00e8re fiable le contact avec les deux surfaces lorsque l\u2019\u00e9cart est maximal. Une pastille 1.5 mm se comprimerait d\u2019environ 43% lorsque l\u2019\u00e9cart est minimal, de 33% \u00e0 la valeur nominale et de 17% lorsque l\u2019\u00e9cart est maximal. La pertinence de cette solution d\u00e9pend de la courbe force-d\u00e9flexion de la pastille, de la plage de compression recommand\u00e9e et de la limite de force d\u2019assemblage.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u00c9cart<\/strong><strong> condition<\/strong><\/td><td><strong>\u00c9cart<\/strong><\/td><td><strong>Compression d\u2019une pastille 1.5 mm<\/strong><\/td><td><strong>Question principale<\/strong><\/td><\/tr><tr><td>Minimum<\/td><td>0,85 mm<\/td><td>Environ 43%<\/td><td>La force, la contrainte ou l\u2019extrusion sont-elles trop \u00e9lev\u00e9es ?<\/td><\/tr><tr><td>Nominal<\/td><td>1.00 mm<\/td><td>Environ 33%<\/td><td>La temp\u00e9rature atteint-elle la valeur cible ?<\/td><\/tr><tr><td>Maximum<\/td><td>1.25 mm<\/td><td>Environ 17%<\/td><td>La pression de contact est-elle toujours suffisante ?<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le m\u00eame pad peut \u00eatre surcompress\u00e9 dans une unit\u00e9 et sous-compress\u00e9 dans une autre. Une conception bas\u00e9e uniquement sur la valeur nominale ne tient pas compte de ce risque.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 3 : D\u00e9finir la limite de force m\u00e9canique<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les pads thermiques doivent \u00eatre comprim\u00e9s pour \u00e9pouser les irr\u00e9gularit\u00e9s de surface et \u00e9liminer les poches d\u2019air. La compression g\u00e9n\u00e8re \u00e9galement une charge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La force totale est approximativement de :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">force = pressure x pad area<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette simple multiplication permet de d\u00e9tecter de nombreuses conceptions inad\u00e9quates. Un pad souple sur un petit circuit int\u00e9gr\u00e9 peut g\u00e9n\u00e9rer une force n\u00e9gligeable. La m\u00eame pression appliqu\u00e9e sur un grand module de batterie peut produire une force totale tr\u00e8s \u00e9lev\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La limite d\u2019effort doit prendre en compte :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PCB d\u00e9formation;<\/li>\n\n\n\n<li>les contraintes des joints de soudure;<\/li>\n\n\n\n<li>la fissuration des condensateurs c\u00e9ramiques;<\/li>\n\n\n\n<li>la fragilit\u00e9 du bo\u00eetier et de la puce;<\/li>\n\n\n\n<li>chargement des cellules de batterie;<\/li>\n\n\n\n<li>d\u00e9formation du bo\u00eetier;<\/li>\n\n\n\n<li>capacit\u00e9 portante des fixations;<\/li>\n\n\n\n<li>fluage \u00e0 long terme et d\u00e9formation r\u00e9manente en compression.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">l\u2019explication de HakTak concernant <a href=\"https:\/\/haktak.com\/fr\/thermal-pad-compression-ratio-how-much-is-enough\/\">taux de compression du pad thermique<\/a> shows why a percentage alone is not enough. Hardness, area, thickness, temperature, and viscoelastic behavior determine the actual load.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Hardness Is Not a Complete Force Specification<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Shore 00 or Shore OO hardness is useful for comparing materials, but it does not replace a compression-deflection curve. Two pads with similar hardness can produce different force because their fillers, reinforcement, thickness, and polymer network differ.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Request pressure-versus-deflection data at the candidate thickness. Then calculate total force across the real pad area. For fragile assemblies, strain gauges or board-level modeling may be justified during prototype testing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 4: Choose the Right Thermal Pad Material Family<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The best material family depends on heat flow, gap, pressure, electrical needs, cleanliness, environment, and manufacturing.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Famille de mat\u00e9riaux<\/strong><\/td><td><strong>Meilleur ajustement<\/strong><\/td><td><strong>Principal avantage<\/strong><\/td><td><strong>Principal compromis<\/strong><\/td><\/tr><tr><td>Pad thermique en silicone<\/td><td>General electronics and uneven gaps<\/td><td>Soft, insulating, mature, easy to customize<\/td><td>Siloxane or bleed restrictions in sensitive systems<\/td><\/tr><tr><td>Tampon sans silicone<\/td><td>Optical, relay, and contact-sensitive electronics<\/td><td>Reduces silicone-contamination concern<\/td><td>Different aging, tack, softness, and temperature behavior<\/td><\/tr><tr><td>Coussin en fluorosilicone<\/td><td>Oil, fuel, or chemical-exposed modules<\/td><td>Better resistance to many aggressive fluids<\/td><td>Higher cost and application-specific compatibility testing<\/td><\/tr><tr><td>Isolateur en silicone renforc\u00e9<\/td><td>Flat power devices and handling-critical parts<\/td><td>Puncture resistance and dimensional stability<\/td><td>Lower conformity than very soft pads<\/td><\/tr><tr><td>Feuille de graphite<\/td><td>Thin devices needing lateral heat spreading<\/td><td>High in-plane spreading and low profile<\/td><td>Often electrically conductive and anisotropic<\/td><\/tr><tr><td>TIM \u00e0 changement de phase<\/td><td>Thin, flat, clamped interfaces<\/td><td>Low bond line after activation<\/td><td>Activation, pump-out, and rework considerations<\/td><\/tr><tr><td>P\u00e2te thermique<\/td><td>Complex multi-height components<\/td><td>Low-force conformity and flexible dispensing<\/td><td>Process control and rework considerations<\/td><\/tr><tr><td>Mat\u00e9riau de remplissage liquide<\/td><td>Large or irregular production gaps<\/td><td>Automated dispensing and low stress<\/td><td>Dispense, cure, inspection, and equipment requirements<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Custom Silicone Thermal Pads<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Silicone pads remain a practical default for many electronics products. They can combine ceramic fillers, electrical insulation, softness, and a wide range of thicknesses. HakTak\u2019s <a href=\"https:\/\/haktak.com\/fr\/thermal-pads-2\/silicone-thermal-pads\/\">silicone thermal pad page<\/a> outlines available sheet, roll, die-cut, hardness, tack, and thickness options.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Still, \u201csilicone pad\u201d is not one fixed material. Formulations differ in low-molecular siloxanes, oil bleed, volatile loss, tear strength, compression set, flame behavior, and surface tack.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Custom Fluorosilicone Thermal Pads<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For modules exposed to fuel, oil, coolant, solvent vapor, or under-hood contamination, fluorosilicone may be worth evaluating. HakTak\u2019s <a href=\"https:\/\/haktak.com\/fr\/thermal-pads-2\/fluorosilicone-thermal-pad\/\">pad thermique en fluorosilicone<\/a> information lists the exposure data needed for sample selection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chemical-resistance charts are only screening tools. The actual fluid, concentration, temperature, duration, compression, and acceptable swelling limit should be tested.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Graphite Heat Spreaders<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Graphite works differently from a soft gap pad. It is often strongest for lateral, or in-plane, heat spreading. It may need insulation film, adhesive, edge protection, or a compliant TIM beneath it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HakTak\u2019s <a href=\"https:\/\/haktak.com\/fr\/thermal-pads-2\/graphite-thermal-pad\/\">Guide sur les coussinets thermiques en graphite<\/a> explains why heat direction and electrical behavior should be defined before selecting thickness or shape.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 5: Compare Thermal Impedance, Not Only W\/mK<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"912\" height=\"595\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-5.png\" alt=\"Compare Thermal Impedance, Not Only W\/mK\" class=\"wp-image-1341\" style=\"width:692px;height:auto\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-5.png 912w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-5-300x196.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-5-768x501.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-5-600x391.png 600w\" sizes=\"(max-width: 912px) 100vw, 912px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Thermal conductivity is a bulk material property. Thermal impedance describes heat-flow resistance through an interface under defined thickness, pressure, temperature, and contact conditions. Device temperature is the system result.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A high-W\/mK pad can perform poorly if it is too thick, too hard, or weakly compressed. A moderate-conductivity pad can perform better when it reaches a thinner bond line and makes fuller contact.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, ignoring contact resistance and using equal area:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>6 W\/mK at 1.5 mm gives a simplified <code>t\/k<\/code> term of 0.25;<\/li>\n\n\n\n<li>3 W\/mK at 0.6 mm gives a simplified <code>t\/k<\/code> term of 0.20.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The lower-conductivity pad can have lower bulk resistance in this example. It is not a universal result. It is a reminder that thickness and contact cannot be separated from conductivity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HakTak\u2019s article on <a href=\"https:\/\/haktak.com\/fr\/why-high-wmk-does-not-always-mean-better-cooling-performance\/\">pourquoi une conductivit\u00e9 thermique \u00e9lev\u00e9e (W\/mK) ne signifie pas toujours un meilleur refroidissement<\/a> explores this trap in more detail.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le courant <a href=\"https:\/\/store.astm.org\/standards\/d5470\" rel=\"nofollow noopener\" target=\"_blank\">ASTM D5470<\/a> standard covers steady-state thermal impedance measurement and calculation of apparent thermal conductivity for TIMs. Supplier data should identify test pressure, specimen thickness, temperature, surface condition, and whether the result is typical or guaranteed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 6: Define Electrical Insulation Requirements<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Many thermal pads transfer heat and isolate electricity at the same time. That combination is useful, but the insulation system must be designed as a system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Important inputs include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>working voltage and transient voltage;<\/li>\n\n\n\n<li>AC, DC, and switching conditions;<\/li>\n\n\n\n<li>required breakdown voltage or dielectric strength;<\/li>\n\n\n\n<li>\u00e9paisseur minimale comprim\u00e9e ;<\/li>\n\n\n\n<li>creepage and clearance around cut edges;<\/li>\n\n\n\n<li>volume resistivity;<\/li>\n\n\n\n<li>humidity and contamination level;<\/li>\n\n\n\n<li>altitude where relevant;<\/li>\n\n\n\n<li>proof-test or hipot requirements;<\/li>\n\n\n\n<li>vieillissement avant un nouvel essai \u00e9lectrique.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/store.astm.org\/standards\/d149\" rel=\"nofollow noopener\" target=\"_blank\">ASTM D149<\/a> couvre les essais de tension de claquage di\u00e9lectrique et de rigidit\u00e9 di\u00e9lectrique des mat\u00e9riaux isolants \u00e9lectriques solides \u00e0 des fr\u00e9quences industrielles. Le r\u00e9sultat obtenu sur une \u00e9prouvette est utile, mais le produit final comporte des trous, des bords d\u00e9coup\u00e9s, des bavures, une pression, de l\u2019humidit\u00e9 et une \u00e9ventuelle contamination.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Plus \u00e9pais ne signifie pas automatiquement plus s\u00fbr<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Augmenter l\u2019\u00e9paisseur du pad peut am\u00e9liorer la marge d\u2019isolation \u00e9lectrique dans l\u2019\u00e9paisseur, mais augmente \u00e9galement la r\u00e9sistance thermique et peut accro\u00eetre la force m\u00e9canique. Une compression excessive peut r\u00e9duire l\u2019\u00e9paisseur finale de l\u2019isolant. Les d\u00e9coupes peuvent raccourcir le trajet autour du mat\u00e9riau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les exigences \u00e9lectriques, thermiques et m\u00e9caniques doivent donc faire l\u2019objet d\u2019une m\u00eame revue de conception. R\u00e9ussir chaque calcul s\u00e9par\u00e9ment ne suffit pas lorsque les solutions entrent en conflit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le guide HakTak sur <a href=\"https:\/\/haktak.com\/fr\/electrically-insulating-thermal-pads-when-do-you-need-them\/\">pads thermiques isolants \u00e9lectriques<\/a> fournit des v\u00e9rifications suppl\u00e9mentaires lors de la s\u00e9lection d\u2019\u00e9quipements d\u2019\u00e9lectronique de puissance et de bo\u00eetiers mis \u00e0 la terre.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 7 : Concevoir la forme du pad thermique personnalis\u00e9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Une fois le mat\u00e9riau, l\u2019\u00e9paisseur et la compression valid\u00e9s, la g\u00e9om\u00e9trie XY peut \u00eatre finalis\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A custom outline may need to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>cover the functional thermal area;<\/li>\n\n\n\n<li>clear screws, bosses, connectors, and test points;<\/li>\n\n\n\n<li>maintain electrical edge distance;<\/li>\n\n\n\n<li>avoid vents, seals, and moving parts;<\/li>\n\n\n\n<li>provide orientation and anti-rotation features;<\/li>\n\n\n\n<li>support manual or automated placement;<\/li>\n\n\n\n<li>permettre une imbrication efficace du mat\u00e9riau ;<\/li>\n\n\n\n<li>r\u00e9sister \u00e0 la d\u00e9coupe et au retrait du support protecteur.\n<ul class=\"wp-block-list\">\n<li><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Utiliser des rayons et supprimer les d\u00e9tails non fonctionnels<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les angles int\u00e9rieurs vifs peuvent constituer des points d\u2019amorce de d\u00e9chirure. Les ponts \u00e9troits peuvent s\u2019\u00e9tirer lors de l\u2019\u00e9chenillage ou de la pose. Les trous de tr\u00e8s petit diam\u00e8tre peuvent se refermer partiellement apr\u00e8s la d\u00e9coupe et \u00eatre plus petits que pr\u00e9vu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Privil\u00e9giez les angles arrondis. \u00c9largissez les sections \u00e9troites fragiles. Augmentez les jeux de montage en fonction du cumul complet des tol\u00e9rances. Supprimez les \u00e9l\u00e9ments g\u00e9om\u00e9triques d\u00e9coratifs qui n\u2019am\u00e9liorent ni le transfert thermique, ni le d\u00e9gagement, ni l\u2019orientation, ni la manutention.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La g\u00e9om\u00e9trie d\u00e9taill\u00e9e doit \u00eatre examin\u00e9e directement avec le transformateur avant la validation de l\u2019outillage. L\u2019\u00e9paisseur et la souplesse du mat\u00e9riau, le support assur\u00e9 par le protecteur, le volume annuel et le proc\u00e9d\u00e9 de d\u00e9coupe influent tous sur les limites dimensionnelles r\u00e9alisables.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">D\u00e9terminez s\u2019il est pr\u00e9f\u00e9rable d\u2019utiliser un grand pad ou plusieurs petits pads<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Un grand pad r\u00e9duit le nombre de pi\u00e8ces et le risque de d\u00e9placement. Plusieurs pads plus petits peuvent r\u00e9duire la consommation de mat\u00e9riau, isoler la pression exerc\u00e9e sur chaque composant et \u00e9viter de former un pont au-dessus de composants bas ou d\u2019espaces vides.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le choix appropri\u00e9 d\u00e9pend des \u00e9l\u00e9ments suivants :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>variation de hauteur des composants ;<\/li>\n\n\n\n<li>plan\u00e9it\u00e9 du bo\u00eetier;<\/li>\n\n\n\n<li>pression disponible ;<\/li>\n\n\n\n<li>pr\u00e9cision de positionnement ;<\/li>\n\n\n\n<li>chemin de diffusion thermique;<\/li>\n\n\n\n<li>besoins de retouche ;<\/li>\n\n\n\n<li>rendement de d\u00e9coupe \u00e0 l'emporte-pi\u00e8ce ;<\/li>\n\n\n\n<li>temps d\u2019assemblage.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Relier chaque zone thermique par une fine languette peut sembler soign\u00e9 dans CAD, mais cette languette peut se d\u00e9chirer ou transmettre une force ind\u00e9sirable. Parfois, deux pi\u00e8ces simples constituent une conception plus robuste.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 8 : choisir l\u2019adh\u00e9sif, le tack, le liner et le format de livraison<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"879\" height=\"595\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-4.png\" alt=\"Choose Adhesive, Tack, Liner, and Delivery Format\" class=\"wp-image-1410\" style=\"width:657px;height:auto\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-4.png 879w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-4-300x203.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-4-768x520.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-4-18x12.png 18w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-4-600x406.png 600w\" sizes=\"(max-width: 879px) 100vw, 879px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le pad thermique doit parvenir \u00e0 l\u2019interface en bon \u00e9tat. Les \u00e9l\u00e9ments facilitant sa manipulation ne sont pas accessoires.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">P\u00e9gosit\u00e9 naturelle ou ajout de PSA<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">De nombreux pads en silicone pr\u00e9sentent une adh\u00e9rence naturelle suffisante pour rester en place avant la fermeture du bo\u00eetier. L\u2019ajout d\u2019un adh\u00e9sif sensible \u00e0 la pression permet de maintenir le pad sur une surface verticale ou pendant une \u00e9tape de transport interm\u00e9diaire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PSA ajoute \u00e9galement :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00e9paisseur et r\u00e9sistance thermique ;<\/li>\n\n\n\n<li>rigidit\u00e9 ;<\/li>\n\n\n\n<li>un autre m\u00e9canisme de vieillissement ;<\/li>\n\n\n\n<li>r\u00e9sidus possibles ;<\/li>\n\n\n\n<li>retouche plus difficile ;<\/li>\n\n\n\n<li>tol\u00e9rance de laminage et de rep\u00e9rage.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Selective PSA may be better than full-area adhesive. A small attachment zone can hold the pad while keeping the primary thermal path free from an extra layer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Films protecteurs et languettes de pr\u00e9hension<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Release liners support soft material during cutting, keep surfaces clean, and control part presentation. A pull tab gives operators somewhere to grip without touching the thermal surface.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Define:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>which liner is removed first;<\/li>\n\n\n\n<li>which films are temporary or permanent;<\/li>\n\n\n\n<li>sens de pelage ;<\/li>\n\n\n\n<li>d\u00e9bordement ou fente du protecteur antiadh\u00e9sif ;<\/li>\n\n\n\n<li>exigences en mati\u00e8re de force de d\u00e9collement ;<\/li>\n\n\n\n<li>couleur et marquage ;<\/li>\n\n\n\n<li>compatibilit\u00e9 avec la manipulation \u00e0 l\u2019aide de gants ou la pr\u00e9hension par le vide.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Un film de renfort permanent ne doit jamais \u00eatre confondu avec un protecteur pelable. Le codage couleur facilite l\u2019identification, mais le plan et les instructions de travail doivent pr\u00e9ciser clairement la fonction de chaque couche.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pi\u00e8ces, feuilles, plaques ou rouleaux<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Format de livraison<\/strong><\/td><td><strong>Meilleur ajustement<\/strong><\/td><td><strong>Avantage principal<\/strong><\/td><td><strong>Risque principal<\/strong><\/td><\/tr><tr><td>Pi\u00e8ces individuelles<\/td><td>Kits de maintenance et faibles volumes<\/td><td>Comptage et pr\u00e9paration de kits faciles<\/td><td>Manipulation et orientation des pi\u00e8ces d\u00e9tach\u00e9es<\/td><\/tr><tr><td>Kiss-cut sheets<\/td><td>Manual assembly and moderate volume<\/td><td>Organized placement and simple peel<\/td><td>Tuilage de la feuille et r\u00e9gularit\u00e9 du d\u00e9collement<\/td><\/tr><tr><td>Kits multicomposants<\/td><td>Produits utilisant plusieurs formes de pastilles<\/td><td>S\u00e9quence d\u2019assemblage anti-erreur<\/td><td>Complexit\u00e9 de la pr\u00e9paration des kits et gestion des pi\u00e8ces h\u00e9t\u00e9rog\u00e8nes<\/td><\/tr><tr><td>Rouleaux continus<\/td><td>D\u00e9pose automatis\u00e9e \u00e0 grande cadence<\/td><td>Pas constant et alimentation de la machine<\/td><td>Exigences relatives \u00e0 la bande, \u00e0 l\u2019\u00e9pissure, au bobinage et au pr\u00e9l\u00e8vement<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les rouleaux, pr\u00e9cisez le pas, la largeur de bande, le diam\u00e8tre du mandrin, le diam\u00e8tre maximal, le sens d\u2019enroulement, l\u2019orientation de la pi\u00e8ce, les r\u00e8gles de raccordement et la position de l\u2019\u00e9tiquette. Une pi\u00e8ce conforme, mais enroul\u00e9e dans le mauvais sens, peut malgr\u00e9 tout arr\u00eater une ligne de production.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 9 : Adapter la conception \u00e0 l\u2019application du produit<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les diff\u00e9rents secteurs d\u2019activit\u00e9 modifient l\u2019ordre des priorit\u00e9s.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Application<\/strong><\/td><td><strong>Personnalisation type <\/strong><strong>bloc-notes<\/strong><strong> emplacement<\/strong><\/td><td><strong>Principal<\/strong><strong> priorit\u00e9s de conception<\/strong><\/td><\/tr><tr><td>Syst\u00e8mes de batteries pour v\u00e9hicules \u00e9lectriques<\/td><td>Cellules ou modules sur plaque de refroidissement, BMS sur bo\u00eetier<\/td><td>Force sur grande surface, isolation, cyclage thermique, tra\u00e7abilit\u00e9<\/td><\/tr><tr><td>Calculateurs \u00e9lectroniques automobiles<\/td><td>Processeur, MOSFET ou carte d\u2019alimentation pour le moulage d\u2019un bo\u00eetier<\/td><td>Vibrations, tol\u00e9rance aux jeux, produits chimiques, vieillissement di\u00e9lectrique<\/td><\/tr><tr><td>Serveurs d'IA et processeurs graphiques<\/td><td>M\u00e9moire, VRM, retimers et contr\u00f4leurs vers une plaque froide ou un capot<\/td><td>Faible imp\u00e9dance, r\u00e9p\u00e9tabilit\u00e9, maintenabilit\u00e9, forte densit\u00e9 de puissance<\/td><\/tr><tr><td>\u00c9lectronique de puissance<\/td><td>MOSFET, IGBT, dispositifs SiC, composants magn\u00e9tiques<\/td><td>Isolation, pression, plan\u00e9it\u00e9, cyclage<\/td><\/tr><tr><td>\u00c9clairage LED<\/td><td>LED cartes et drivers sur un dissipateur thermique en aluminium<\/td><td>Joint de collage fin, mise en place propre, compatibilit\u00e9 optique<\/td><\/tr><tr><td>T\u00e9l\u00e9coms et 5G<\/td><td>ASIC, modules RF et \u00e9tages de puissance vers le ch\u00e2ssis<\/td><td>Longue dur\u00e9e de vie, bo\u00eetier \u00e9tanche, contr\u00f4le des points chauds<\/td><\/tr><tr><td>\u00c9lectronique grand public<\/td><td>Processeur, batterie, circuit de charge, \u00e9cran<\/td><td>Profil mince, \u00e9talement du graphite, placement automatis\u00e9<\/td><\/tr><tr><td>Commandes industrielles<\/td><td>Variateurs, convertisseurs, capteurs, modules robustes<\/td><td>Vibrations, humidit\u00e9, bo\u00eetiers variables, dur\u00e9e de vie sur le terrain<\/td><\/tr><tr><td>\u00c9lectronique m\u00e9dicale<\/td><td>Imagerie, capteurs, modules d\u2019alimentation<\/td><td>Propret\u00e9, tra\u00e7abilit\u00e9, mat\u00e9riaux contr\u00f4l\u00e9s<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Produits pour batteries et v\u00e9hicules \u00e9lectriques<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les interfaces thermiques des batteries de grande taille n\u00e9cessitent une compression uniforme et un calcul pr\u00e9cis de la force. Le gonflement des cellules, la plan\u00e9it\u00e9 du plateau, la structure de la plaque de refroidissement et la d\u00e9formation r\u00e9manente \u00e0 long terme sous compression peuvent avoir davantage d\u2019importance qu\u2019une l\u00e9g\u00e8re augmentation de la conductivit\u00e9 thermique en W\/mK.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Serveurs d\u2019IA et appareils \u00e9lectroniques haute puissance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les \u00e9quipements haute puissance utilisent souvent plusieurs types de TIM dans un m\u00eame assemblage. Un mat\u00e9riau \u00e0 changement de phase mince peut servir d\u2019interface plane pour le processeur, tandis que des pads souples sur mesure comblent les espaces au-dessus de la m\u00e9moire, des VRM, des retimers ou des composants de puissance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La conception ne doit pas imposer un mat\u00e9riau unique pour toutes les interfaces. C\u2019est l\u2019architecture thermique qui d\u00e9termine o\u00f9 les pads sont adapt\u00e9s.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cartes irr\u00e9guli\u00e8res \u00e0 hauteurs multiples<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsque les hauteurs de nombreux composants varient sur une m\u00eame carte, la gestion d\u2019un ensemble complexe d\u2019\u00e9paisseurs de pads peut devenir difficile. HakTak <a href=\"https:\/\/haktak.com\/fr\/thermal-putty-vs-thermal-pad-uneven-gaps\/\">comparatif entre le mastic thermique et le pad thermique<\/a> explique pourquoi le mastic peut s\u2019adapter plus naturellement aux g\u00e9om\u00e9tries irr\u00e9guli\u00e8res soumises \u00e0 de faibles pressions. A <a href=\"https:\/\/haktak.com\/fr\/liquid-gap-filler\/thermal-conductive-gap-fillers\/\">mat\u00e9riau de remplissage liquide thermoconducteur pour espaces<\/a> peut \u00e9galement simplifier la production automatis\u00e9e pour des jeux importants et variables.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 10 : Prototyper l\u2019empilement thermique complet<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les fiches techniques facilitent la pr\u00e9s\u00e9lection des mat\u00e9riaux. Les prototypes permettent d\u2019\u00e9valuer l\u2019assemblage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les premiers \u00e9chantillons, utiliser :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>la nuance et l\u2019\u00e9paisseur pr\u00e9vues du mat\u00e9riau ;<\/li>\n\n\n\n<li>g\u00e9om\u00e9trie de d\u00e9coupe \u00e0 l\u2019emporte-pi\u00e8ce similaire \u00e0 celle de la production ;<\/li>\n\n\n\n<li>de v\u00e9ritables liners et adh\u00e9sif ;<\/li>\n\n\n\n<li>surfaces r\u00e9elles du bo\u00eetier ;<\/li>\n\n\n\n<li>\u00e9l\u00e9ments de fixation repr\u00e9sentatifs et couple de serrage ;<\/li>\n\n\n\n<li>des \u00e9chantillons pr\u00e9sentant, dans la mesure du possible, le jeu le plus d\u00e9favorable ;<\/li>\n\n\n\n<li>des conditions ambiantes, de circulation de l\u2019air ou de liquide de refroidissement r\u00e9alistes.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Les \u00e9chantillons d\u00e9coup\u00e9s num\u00e9riquement peuvent confirmer l\u2019ajustement avant la fabrication de l\u2019outillage d\u00e9finitif. Le r\u00e9sultat thermique doit n\u00e9anmoins \u00eatre v\u00e9rifi\u00e9 \u00e0 nouveau avec des pi\u00e8ces issues de la conversion en production, car la doublure, les bords, l\u2019adh\u00e9sif et le contr\u00f4le dimensionnel peuvent diff\u00e9rer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Mesurez bien plus que la temp\u00e9rature<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Une revue utile du prototype comprend :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>temp\u00e9ratures du composant et du bo\u00eetier ;<\/li>\n\n\n\n<li>\u00e9paisseur de la ligne de collage comprim\u00e9e ;<\/li>\n\n\n\n<li>pression ou force totale ;<\/li>\n\n\n\n<li>d\u00e9formation de la carte ou contraintes sur le bo\u00eetier ;<\/li>\n\n\n\n<li>marques de contact;<\/li>\n\n\n\n<li>extrusion et d\u00e9chirure du pad;<\/li>\n\n\n\n<li>performances di\u00e9lectriques;<\/li>\n\n\n\n<li>temps de retrait du liner et de mise en place;<\/li>\n\n\n\n<li>\u00e9tat apr\u00e8s reprise;<\/li>\n\n\n\n<li>variation d'une unit\u00e9 \u00e0 l'autre.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Un seul capteur de temp\u00e9rature peut ne pas d\u00e9tecter un probl\u00e8me de contact localis\u00e9. L'imagerie thermique, plusieurs thermocouples, un film sensible \u00e0 la pression ou une inspection apr\u00e8s d\u00e9montage peuvent montrer si le pad est en contact avec toute la surface.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 11 : Effectuez des essais de fiabilit\u00e9 dans des conditions proches de l'utilisation r\u00e9elle<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les performances thermiques initiales ne sont que le d\u00e9but. Le maintien du contact dans le temps, c'est toute l'histoire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les essais pertinents peuvent inclure :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>vieillissement \u00e0 haute temp\u00e9rature;<\/li>\n\n\n\n<li>cycles thermiques;<\/li>\n\n\n\n<li>cycles de puissance;<\/li>\n\n\n\n<li>humidit\u00e9 ou chaleur humide;<\/li>\n\n\n\n<li>vibrations et chocs m\u00e9caniques;<\/li>\n\n\n\n<li>d\u00e9formation r\u00e9manente \u00e0 la compression \u00e0 long terme;<\/li>\n\n\n\n<li>exposition \u00e0 l\u2019huile, au carburant, au liquide de refroidissement, aux nettoyants ou aux solvants;<\/li>\n\n\n\n<li>comportement au feu;<\/li>\n\n\n\n<li>nouvel essai di\u00e9lectrique apr\u00e8s vieillissement;<\/li>\n\n\n\n<li>reprise et assemblages r\u00e9p\u00e9t\u00e9s, le cas \u00e9ch\u00e9ant.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Le protocole pr\u00e9cis d\u00e9pend du secteur, de l\u2019emplacement de montage et des exigences du client. Un pad destin\u00e9 \u00e0 \u00eatre mont\u00e9 sous le capot d\u2019un v\u00e9hicule ne n\u00e9cessite pas le m\u00eame profil qu\u2019un circuit de commande LED destin\u00e9 \u00e0 un usage int\u00e9rieur. Pour un module optique, la formation de bu\u00e9e et les compos\u00e9s volatils peuvent \u00eatre plus pr\u00e9occupants que l\u2019exposition au carburant.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">La d\u00e9formation r\u00e9manente \u00e0 la compression peut modifier l\u2019interface sans signe apparent<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Un \u00e9lastom\u00e8re peut ne pas reprendre enti\u00e8rement sa forme apr\u00e8s une exposition prolong\u00e9e \u00e0 la chaleur et \u00e0 la pression. Si la dilatation du bo\u00eetier et de PCB r\u00e9duit la compression de l\u2019interface, cette perte de capacit\u00e9 de r\u00e9cup\u00e9ration peut diminuer la pression de contact et augmenter la r\u00e9sistance thermique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les mesures apr\u00e8s vieillissement doivent porter sur l\u2019\u00e9paisseur, la r\u00e9cup\u00e9ration, la r\u00e9ponse en force, l\u2019imp\u00e9dance thermique, le comportement di\u00e9lectrique et l\u2019\u00e9tat visuel. Un pad peut sembler intact alors que son contact s\u2019est d\u00e9grad\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 12 : appliquer correctement les normes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aucune norme unique ne permet de certifier un pad thermique sur mesure pour tous les produits. Les normes encadrent des mesures sp\u00e9cifiques et des contr\u00f4les qualit\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Norme ou r\u00e9f\u00e9rentiel<\/strong><\/td><td><strong>Utilisation pertinente<\/strong><\/td><td><strong>Ce que cette norme ou ce r\u00e9f\u00e9rentiel ne prouve pas \u00e0 lui seul<\/strong><\/td><\/tr><tr><td>ASTM D5470<\/td><td>TIM imp\u00e9dance thermique et conductivit\u00e9 apparente<\/td><td>Temp\u00e9ratures finales du produit apr\u00e8s vieillissement<\/td><\/tr><tr><td>ASTM D374\/D374M<\/td><td>\u00c9paisseur de l\u2019isolation \u00e9lectrique solide<\/td><td>Comblement correct du jeu sous pression r\u00e9elle<\/td><\/tr><tr><td>ASTM D149<\/td><td>Tension de claquage et rigidit\u00e9 di\u00e9lectrique<\/td><td>S\u00e9curit\u00e9 globale du syst\u00e8me d\u2019isolation<\/td><\/tr><tr><td>ASTM D575<\/td><td>Comportement du caoutchouc en compression-d\u00e9flexion<\/td><td>Force exacte pour chaque configuration de tampon<\/td><\/tr><tr><td>ISO 1:2022<\/td><td>Temp\u00e9rature de r\u00e9f\u00e9rence pour les caract\u00e9ristiques dimensionnelles<\/td><td>Capacit\u00e9 r\u00e9elle \u00e0 respecter les tol\u00e9rances de d\u00e9coupe \u00e0 l\u2019emporte-pi\u00e8ce<\/td><\/tr><tr><td>ISO 2859-1:2026<\/td><td>\u00c9chantillonnage par attributs bas\u00e9 sur AQL<\/td><td>Un plan complet de ma\u00eetrise des proc\u00e9d\u00e9s<\/td><\/tr><tr><td>UL 94<\/td><td>Classification de l\u2019inflammabilit\u00e9 des plastiques \u00e0 petite \u00e9chelle<\/td><td>S\u00e9curit\u00e9 incendie de l\u2019appareil complet<\/td><\/tr><tr><td>ISO 9001 \/ IATF 16949<\/td><td>Syst\u00e8me qualit\u00e9 et ma\u00eetrise des proc\u00e9d\u00e9s<\/td><td>Performances thermiques du mat\u00e9riau<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le <a href=\"https:\/\/store.astm.org\/d0374_d0374m-16.html\" rel=\"nofollow noopener\" target=\"_blank\">M\u00e9thode de mesure de l\u2019\u00e9paisseur ASTM D374\/D374M<\/a> est pertinente, car la pression de mesure peut affecter un tampon souple. Le client et le fournisseur doivent convenir de la m\u00e9thode, de l\u2019\u00e9tat de l\u2019\u00e9prouvette, de l\u2019\u00e9quipement et de la pr\u00e9cision des r\u00e9sultats consign\u00e9s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.iso.org\/standard\/80702.html\" rel=\"nofollow noopener\" target=\"_blank\">ISO 1:2022<\/a> d\u00e9finit le concept de temp\u00e9rature de r\u00e9f\u00e9rence normalis\u00e9e pour les propri\u00e9t\u00e9s dimensionnelles. <a href=\"https:\/\/www.iso.org\/standard\/85464.html\" rel=\"nofollow noopener\" target=\"_blank\">ISO 2859-1:2026<\/a> peut servir \u00e0 l\u2019\u00e9chantillonnage par attributs lot par lot, une fois convenus les classes de d\u00e9fauts, AQL et les r\u00e8gles de basculement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les classifications d\u2019inflammabilit\u00e9, le <a href=\"https:\/\/www.ul.com\/services\/combustion-fire-tests-plastics\" rel=\"nofollow noopener\" target=\"_blank\">Explication UL de la norme UL 94<\/a> distingue les essais horizontaux, verticaux et 5V des mat\u00e9riaux. Une classification V-0 doit s\u2019appliquer \u00e0 la construction r\u00e9elle et \u00e0 l\u2019\u00e9paisseur concern\u00e9e. Elle ne constitue pas une homologation compl\u00e8te du produit en mati\u00e8re de s\u00e9curit\u00e9 incendie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 13 : convertir la conception en document fournisseur RFQ<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Une demande de \u201c pad 8 W\/mK sur mesure \u201d laisse sans r\u00e9ponse la plupart des questions de conception technique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un document RFQ utile doit inclure :<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Cat\u00e9gorie<\/strong><\/td><td><strong>Informations \u00e0 fournir<\/strong><\/td><\/tr><tr><td>Thermique<\/td><td>Source de chaleur, profil de puissance, temp\u00e9rature cible, surface de contact, conditions aux limites de refroidissement<\/td><\/tr><tr><td>\u00c9cart<\/td><td>Jeu minimal, nominal et maximal, plan\u00e9it\u00e9, cumul des tol\u00e9rances<\/td><\/tr><tr><td>M\u00e9canique<\/td><td>Limite de force, pression, duret\u00e9, taux de compression cible, composants fragiles<\/td><\/tr><tr><td>\u00c9lectrique<\/td><td>Tension, objectif de rigidit\u00e9 di\u00e9lectrique, \u00e9paisseur minimale, lignes de fuite et distances d\u2019isolement<\/td><\/tr><tr><td>Mat\u00e9riel<\/td><td>Silicone, sans silicone, fluorosilicone, graphite, renfort, couleur<\/td><\/tr><tr><td>G\u00e9om\u00e9trie<\/td><td>Plan PDF, DXF, trous, fentes, languettes, r\u00e9f\u00e9rences, cotes critiques<\/td><\/tr><tr><td>Construction<\/td><td>PSA, protecteurs, films permanents, marquages imprim\u00e9s<\/td><\/tr><tr><td>Environnement<\/td><td>Temp\u00e9ratures de fonctionnement et de stockage, humidit\u00e9, vibrations, fluides<\/td><\/tr><tr><td>Production<\/td><td>Pose manuelle ou automatis\u00e9e, feuilles ou rouleaux, pas, conditionnement<\/td><\/tr><tr><td>Qualit\u00e9<\/td><td>Premier article, rapport de contr\u00f4le, AQL, Cpk, PPAP, tra\u00e7abilit\u00e9, gestion des modifications<\/td><\/tr><tr><td>Commercial<\/td><td>Quantit\u00e9 d\u2019\u00e9chantillons, volume annuel, taille de lot, calendrier, propri\u00e9t\u00e9 de l\u2019outillage<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le plan doit distinguer les cotes critiques des cotes de r\u00e9f\u00e9rence. Pour les pi\u00e8ces stratifi\u00e9es, ajoutez une vue \u00e9clat\u00e9e de l\u2019empilement des couches. Identifiez clairement les films temporaires et permanents. Une capture d\u2019\u00e9cran ne constitue pas un plan de fabrication contr\u00f4l\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 14 : ma\u00eetriser le pad thermique sur mesure en production<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le contr\u00f4le \u00e0 r\u00e9ception ne n\u00e9cessite pas de r\u00e9p\u00e9ter la qualification compl\u00e8te pour chaque lot. Il doit permettre de d\u00e9tecter toute d\u00e9rive significative.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les contr\u00f4les courants comprennent :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>la v\u00e9rification du mat\u00e9riau et de la r\u00e9vision ;<\/li>\n\n\n\n<li>l\u2019\u00e9paisseur ;<\/li>\n\n\n\n<li>les dimensions critiques du profil ;<\/li>\n\n\n\n<li>la position des trous ;<\/li>\n\n\n\n<li>d\u00e9fauts visuels des ar\u00eates et de la surface ;<\/li>\n\n\n\n<li>structure du protecteur et de l\u2019adh\u00e9sif;<\/li>\n\n\n\n<li>duret\u00e9 ou point d\u00e9fini de force de compression ;<\/li>\n\n\n\n<li>nombre et orientation des pi\u00e8ces ;<\/li>\n\n\n\n<li>identification du lot et dur\u00e9e de conservation ;<\/li>\n\n\n\n<li>v\u00e9rifications p\u00e9riodiques thermiques et di\u00e9lectriques.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Les pi\u00e8ces souples doivent \u00eatre mesur\u00e9es selon une m\u00e9thode convenue. Les instruments de contact peuvent les comprimer. La mesure optique peut \u00eatre mieux adapt\u00e9e aux profils XY, tandis que l\u2019\u00e9paisseur n\u00e9cessite une pression de contact contr\u00f4l\u00e9e.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">La gestion des modifications est plus importante qu\u2019il n\u2019y para\u00eet<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Une modification apport\u00e9e par le fournisseur \u00e0 la charge, au polym\u00e8re, au liner, \u00e0 l\u2019adh\u00e9sif, au rev\u00eatement anti-adh\u00e9rent, au site de fabrication, \u00e0 l\u2019outillage, \u00e0 la m\u00e9thode d\u2019essai ou \u00e0 la source de mati\u00e8res premi\u00e8res peut affecter les performances ou l\u2019assemblage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La sp\u00e9cification d\u2019achat doit d\u00e9finir les exigences en mati\u00e8re de notification et de requalification. \u201c M\u00eame r\u00e9f\u00e9rence \u201d ne signifie pas toujours que l\u2019interface est inchang\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Erreurs courantes de conception des pads thermiques sur mesure<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Erreur<\/strong><\/td><td><strong>Pourquoi cela \u00e9choue<\/strong><\/td><td><strong>Meilleure approche<\/strong><\/td><\/tr><tr><td>S\u00e9lectionner uniquement selon les W\/mK<\/td><td>Ne tient pas compte de l\u2019\u00e9paisseur, du contact et de la pression<\/td><td>Comparer l\u2019imp\u00e9dance et la temp\u00e9rature du composant<\/td><\/tr><tr><td>Utiliser uniquement l\u2019\u00e9cart nominal<\/td><td>Ne tient pas compte de la sous-compression et de la surcompression<\/td><td>Calculer les conditions minimale, nominale et maximale<\/td><\/tr><tr><td>Ignorer la force totale<\/td><td>Un pad de grande surface surcharge l\u2019assemblage<\/td><td>Multipliez la pression par la surface et validez la d\u00e9formation<\/td><\/tr><tr><td>Rendre le pad plus \u00e9pais \u201c par s\u00e9curit\u00e9 \u201d<\/td><td>Augmente la r\u00e9sistance et les contraintes m\u00e9caniques<\/td><td>Utilisez le pad le plus fin qui couvre l\u2019\u00e9cart maximal<\/td><\/tr><tr><td>Reproduire les tol\u00e9rances des pi\u00e8ces m\u00e9talliques<\/td><td>Un mat\u00e9riau souple se d\u00e9forme pendant la mesure<\/td><td>D\u00e9finir des tol\u00e9rances fonctionnelles compatibles avec le proc\u00e9d\u00e9<\/td><\/tr><tr><td>Ajout de PSA sur toute la surface par d\u00e9faut<\/td><td>Augmente la r\u00e9sistance et complique la reprise<\/td><td>Use natural tack or selective adhesive where possible<\/td><\/tr><tr><td>Designing sharp, fragile geometry<\/td><td>Tears during cutting or peeling<\/td><td>Add radii and widen narrow bridges<\/td><\/tr><tr><td>Treating dielectric strength as the whole insulation design<\/td><td>Ignores edges, humidity, creepage, and compression<\/td><td>Validate the complete aged assembly<\/td><\/tr><tr><td>Testing only fresh samples<\/td><td>Misses compression set and environmental drift<\/td><td>Retest thermal and electrical behavior after aging<\/td><\/tr><tr><td>Leaving packaging to the supplier<\/td><td>Correct part arrives in unusable format<\/td><td>Specify liner, array, roll, pitch, and winding<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What Is Different About Custom Thermal Pad Design in 2026?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The basic heat-transfer physics has not changed. Product expectations have.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">First, power density keeps rising. AI accelerators, EV power electronics, compact chargers, advanced driver-assistance computers, and high-output LED systems place more heat in less space. A pad that merely \u201cfills the gap\u201d is no longer a convincing design. Teams increasingly need pressure-specific impedance data, hot-spot mapping, and tighter control of final bond line thickness.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Second, liquid-cooled hardware is becoming more common outside traditional industrial systems. Cold plates improve the cooling boundary, but they do not remove interface problems. Flatness, pressure uniformity, coolant temperature, flow conditions, and service procedures still affect the TIM. Better cooling hardware can actually expose a weak pad design because the interface becomes a larger share of the remaining thermal resistance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Third, automated assembly is influencing pad construction earlier. Pull tabs, liner stiffness, part pitch, vacuum pickup, roll direction, vision contrast, and missing-part detection now belong in design reviews. These are no longer packaging details to solve after material approval.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fourth, contamination requirements are becoming more specific. Optical modules, relays, high-current contacts, camera systems, and coating-sensitive electronics may restrict low-molecular siloxanes, residue, particles, or ionic contamination. \u201cSilicone-free\u201d can be useful, but it should not replace an actual cleanliness specification.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fifth, traceability and supplier change control are receiving more attention. A custom pad may look unchanged while the liner release coating, adhesive, filler source, or converting tool has changed. Production specifications increasingly need lot identification, controlled revisions, agreed test methods, and notification rules.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The 2026 design mindset is therefore more integrated. Thermal, mechanical, electrical, materials, manufacturing, quality, and sourcing teams need to define the interface together. Passing a material datasheet around by email is not really a design process. It is closer to hoping.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A Practical 2026 Custom Thermal Pad Design Workflow<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The complete process can be summarized in fourteen decisions:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Map heat source, heat destination, and thermal budget.<\/li>\n\n\n\n<li>Mesurer le jeu minimal, nominal et maximal.<\/li>\n\n\n\n<li>Set component, PCB, and housing force limits.<\/li>\n\n\n\n<li>Select the material family.<\/li>\n\n\n\n<li>Comparez l\u2019imp\u00e9dance thermique \u00e0 une pression r\u00e9aliste.<\/li>\n\n\n\n<li>Define electrical and environmental requirements.<\/li>\n\n\n\n<li>Design the functional pad shape.<\/li>\n\n\n\n<li>Choose tack, PSA, liner, and delivery format.<\/li>\n\n\n\n<li>Adjust priorities for the application and industry.<\/li>\n\n\n\n<li>Build production-like prototypes.<\/li>\n\n\n\n<li>Validate after thermal, mechanical, and environmental aging.<\/li>\n\n\n\n<li>Specify standards and methods precisely.<\/li>\n\n\n\n<li>Issue a complete supplier RFQ and drawing package.<\/li>\n\n\n\n<li>Lock incoming inspection, traceability, and change control.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">The strongest custom thermal pad is not the one with the most impressive datasheet. It is the one that fits the real gap, makes full contact without overloading the assembly, preserves insulation, survives the environment, and arrives in a format the production line can use without drama.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That sounds obvious. In practice, it is the whole job.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions About Custom Thermal Pad Design<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. What information is needed to design a custom thermal pad?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The essential inputs are heat source, power, target temperature, contact area, cooling surface, minimum and maximum gap, force limit, voltage, operating environment, geometry, assembly method, and annual volume. Material and conductivity should be selected after these requirements are understood.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. What thermal conductivity should a custom thermal pad have?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">There is no universal best W\/mK value. The correct choice depends on compressed thickness, contact pressure, area, surface conformity, and the rest of the heat path. Thermal impedance at realistic assembly pressure is usually more useful than conductivity alone.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. How is custom thermal pad thickness selected?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Calculate the full gap range, then choose a supplied thickness that remains in the material\u2019s usable compression window at minimum, nominal, and maximum gap. The pad should cover the largest gap without creating excessive force at the smallest gap.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. How much should a thermal pad compress?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The required compression depends on formulation, thickness, hardness, area, pressure, and surface flatness. Use supplier force-deflection and impedance data rather than a universal percentage. Confirm total force and thermal performance in the real assembly.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Are custom thermal pads electrically insulating?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Many ceramic-filled silicone and polymer pads are electrically insulating, but not every TIM is. Graphite and metal-containing materials may conduct electricity. When insulation is critical, verify minimum compressed thickness, breakdown voltage, cut edges, creepage, clearance, and aged performance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. Can a thermal pad be made in any custom shape?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Many shapes are possible, including holes, slots, tabs, frames, and irregular outlines. Very small holes, narrow bridges, and sharp corners may distort or tear in soft materials. The converter should review geometry against material thickness, hardness, liner, and tooling.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">7. Should adhesive be added to a custom thermal pad?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Adhesive helps retain the pad during assembly, especially on vertical surfaces. It also adds thermal resistance, thickness, stiffness, aging risk, and rework difficulty. Natural tack, selective PSA, or mechanical locating features may be better depending on the process.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">8. When should thermal putty or liquid gap filler replace a pad?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Putty or liquid gap filler may be better when gaps are large, irregular, or spread across many component heights and assembly force must stay low. Pads are stronger when geometry and thickness are controlled and production benefits from a clean pre-formed part.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">9. How should custom thermal pad samples be tested?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Use production-like geometry, thickness, adhesive, liner, surfaces, fasteners, torque, and cooling conditions. Measure component temperature, compressed thickness, force, contact area, board strain, dielectric behavior, placement, and post-aging performance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">10. What should be included in a custom thermal pad RFQ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Include thermal targets, gap range, pressure and force limits, voltage, material preference, drawing, tolerances, adhesive and liner needs, environment, validation standards, delivery format, quality documentation, sample quantity, annual volume, and change-control expectations.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>A custom thermal pad should not begin with a color, a thickness, or a big W\/mK number. It should begin [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":1412,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1752","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-haktak-blog"],"_links":{"self":[{"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/posts\/1752","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/comments?post=1752"}],"version-history":[{"count":1,"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/posts\/1752\/revisions"}],"predecessor-version":[{"id":1753,"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/posts\/1752\/revisions\/1753"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/media\/1412"}],"wp:attachment":[{"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/media?parent=1752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/categories?post=1752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/haktak.com\/fr\/wp-json\/wp\/v2\/tags?post=1752"}],"curies":[{"name":"Bien jou\u00e9","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}