{"id":1638,"date":"2026-07-08T09:34:56","date_gmt":"2026-07-08T09:34:56","guid":{"rendered":"https:\/\/haktak.com\/?p=1638"},"modified":"2026-07-08T09:34:58","modified_gmt":"2026-07-08T09:34:58","slug":"thermal-pads-for-igbt-modules","status":"publish","type":"post","link":"https:\/\/haktak.com\/vi\/thermal-pads-for-igbt-modules\/","title":{"rendered":"T\u1ea5m t\u1ea3n nhi\u1ec7t cho m\u00f4-\u0111un IGBT: Nh\u1eefng \u0111i\u1ec1u k\u1ef9 s\u01b0 c\u1ea7n ki\u1ec3m tra"},"content":{"rendered":"<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 n\u00ean ki\u1ec3m tra tr\u1edf kh\u00e1ng nhi\u1ec7t, \u0111\u1ed9 b\u1ec1n \u0111i\u1ec7n m\u00f4i, \u0111\u1ed9 d\u00e0y l\u1edbp keo d\u00e1n cu\u1ed1i c\u00f9ng, l\u1ef1c n\u00e9n, dung sai khe h\u1edf, \u0111\u1ed9 ph\u1eb3ng b\u1ec1 m\u1eb7t, nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh v\u00e0 \u0111\u1ed9 tin c\u1eady tr\u01b0\u1edbc khi ch\u1ecdn t\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t cho c\u00e1c m\u00f4-\u0111un IGBT. T\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t cho m\u00f4-\u0111un IGBT ph\u1ea3i truy\u1ec1n nhi\u1ec7t v\u00e0o b\u1ed9 t\u1ea3n nhi\u1ec7t ho\u1eb7c t\u1ea5m l\u00e0m m\u00e1t. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 c\u1ea7n cung c\u1ea5p kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n. N\u00f3 ph\u1ea3i l\u00e0m \u0111\u01b0\u1ee3c c\u1ea3 hai \u0111i\u1ec1u \u0111\u00f3 m\u00e0 kh\u00f4ng g\u00e2y ra qu\u00e1 nhi\u1ec1u \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1002\" height=\"646\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-13.png\" alt=\"thermal-pads-for-igbt-modules\" class=\"wp-image-1446\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-13.png 1002w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-13-300x193.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-13-768x495.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-13-18x12.png 18w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-13-600x387.png 600w\" sizes=\"(max-width: 1002px) 100vw, 1002px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eebng ch\u1ecdn mi\u1ebfng t\u1ea3n nhi\u1ec7t cho m\u00f4-\u0111un IGBT ch\u1ec9 d\u1ef1a v\u00e0o \u0111\u1ed9 d\u1eabn nhi\u1ec7t. M\u1ed9t mi\u1ebfng t\u1ea3n nhi\u1ec7t c\u00f3 ch\u1ec9 s\u1ed1 W\/mK cao v\u1eabn c\u00f3 th\u1ec3 h\u1ecfng n\u1ebfu n\u00f3 qu\u00e1 d\u00e0y, qu\u00e1 c\u1ee9ng, n\u00e9n ch\u01b0a \u0111\u1ee7, n\u00e9n qu\u00e1 m\u1ee9c, ho\u1eb7c c\u00f3 hi\u1ec7u su\u1ea5t c\u00e1ch \u0111i\u1ec7n k\u00e9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t t\u1ed1t nh\u1ea5t l\u00e0 lo\u1ea1i mang l\u1ea1i tr\u1edf kh\u00e1ng nhi\u1ec7t th\u1ea5p \u1ed5n \u0111\u1ecbnh, kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n an to\u00e0n v\u00e0 \u0111\u1ed9 ti\u1ebfp x\u00fac c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i sau khi l\u1eafp \u0111\u1eb7t, chu k\u1ef3 nhi\u1ec7t v\u00e0 qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh l\u00e2u d\u00e0i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao c\u00e1c m\u00f4-\u0111un IGBT c\u1ea7n l\u1ef1a ch\u1ecdn t\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t c\u1ea9n th\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module IGBT \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf nh\u1eefng n\u01a1i c\u00f3 m\u1ee9c c\u00f4ng su\u1ea5t cao. B\u1ea1n t\u00ecm th\u1ea5y ch\u00fang trong bi\u1ebfn t\u1ea7n xe \u0111i\u1ec7n, bi\u1ebfn t\u1ea7n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 c\u00f4ng nghi\u1ec7p, h\u1ec7 th\u1ed1ng UPS, thi\u1ebft b\u1ecb h\u00e0n, h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng s\u1eaft v\u00e0 c\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i c\u00f4ng su\u1ea5t l\u1edbn. C\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y chuy\u1ec3n m\u1ea1ch d\u00f2ng \u0111i\u1ec7n n\u1eb7ng. Ch\u00fang c\u0169ng t\u1ea1o ra nhi\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec7t l\u01b0\u1ee3ng ph\u1ea3i tho\u00e1t ra kh\u1ecfi m\u1ed1i n\u1ed1i ch\u1ea5t b\u00e1n d\u1eabn v\u00e0 \u0111i qua c\u00e1c l\u1edbp m\u00f4-\u0111un. Sau \u0111\u00f3, n\u00f3 chuy\u1ec3n v\u00e0o b\u1ed9 t\u1ea3n nhi\u1ec7t, t\u1ea5m l\u1ea1nh, \u0111\u1ebf ho\u1eb7c v\u1ecf m\u00e1y. Giao di\u1ec7n nhi\u1ec7t gi\u1eefa m\u00f4-\u0111un v\u00e0 b\u1ec1 m\u1eb7t l\u00e0m m\u00e1t l\u00e0 m\u1ed9t ph\u1ea7n nh\u1ecf c\u1ee7a h\u1ec7 th\u1ed1ng. Nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t \u0111i\u1ec3m ngh\u1ebdn l\u1edbn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea5m t\u1ea3n nhi\u1ec7t module IGBT th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac c\u1ea7n m\u1ed9t ho\u1eb7c nhi\u1ec1u ch\u1ee9c n\u0103ng sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110i\u1ec1n khuy\u1ebft<\/li>\n\n\n\n<li>C\u00e1ch \u0111i\u1ec7n \u0111i\u1ec7n<\/li>\n\n\n\n<li>\u0110\u1ed9 d\u00e0y \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/li>\n\n\n\n<li>G\u1eafn k\u1ebft s\u1ea1ch s\u1ebd h\u01a1n m\u1ee1<\/li>\n\n\n\n<li>L\u1eafp r\u00e1p l\u1eb7p l\u1ea1i<\/li>\n\n\n\n<li>\u1ee8ng su\u1ea5t th\u1ea5p h\u01a1n v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n c\u1ee9ng<\/li>\n\n\n\n<li>Ki\u1ec3m so\u00e1t h\u00ecnh d\u1ea1ng b\u1ebf<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module c\u00f4ng su\u1ea5t kh\u00f4ng cho ph\u00e9p sai s\u00f3t. Giao di\u1ec7n t\u1ea3n nhi\u1ec7t k\u00e9m c\u00f3 th\u1ec3 l\u00e0m t\u0103ng nhi\u1ec7t \u0111\u1ed9 chuy\u1ec3n m\u1ea1ch. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c \u0111i\u1ec3m n\u00f3ng. Theo th\u1eddi gian, \u1ee9ng su\u1ea5t \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a module.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c <a href=\"https:\/\/www.semikron-danfoss.com\/dl\/service-support\/downloads\/download\/semikron-application-manual-power-semiconductors-english-en-2015.pdf\" target=\"_blank\" rel=\"noopener\">S\u1ed5 tay \u1ee9ng d\u1ee5ng Ch\u1ea5t b\u00e1n d\u1eabn c\u00f4ng su\u1ea5t Semikron-Danfoss<\/a> l\u00e0 m\u1ed9t ngu\u1ed3n t\u00e0i nguy\u00ean h\u1eefu \u00edch trong ng\u00e0nh v\u00ec n\u00f3 xem c\u00e1c m\u00f4-\u0111un c\u00f4ng su\u1ea5t nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t, \u0111i\u1ec7n v\u00e0 c\u01a1 kh\u00ed ho\u00e0n ch\u1ec9nh ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1c linh ki\u1ec7n ri\u00eang l\u1ebb. \u0110\u00f3 c\u0169ng l\u00e0 c\u00e1ch ti\u1ebfp c\u1eadn \u0111\u00fang \u0111\u1eafn khi ngh\u0129 v\u1ec1 c\u00e1c t\u1ea5m t\u1ea3n nhi\u1ec7t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mi\u1ebfng t\u1ea3n nhi\u1ec7t cho module IGBT so v\u1edbi m\u1ee1 t\u1ea3n nhi\u1ec7t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Keo t\u1ea3n nhi\u1ec7t \u0111\u00e3 ph\u1ed5 bi\u1ebfn trong c\u00e1c module c\u00f4ng su\u1ea5t t\u1eeb r\u1ea5t l\u00e2u. N\u00f3 c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t l\u1edbp li\u00ean k\u1ebft m\u1ecfng. N\u00f3 c\u0169ng l\u00e0m \u01b0\u1edbt c\u00e1c b\u1ec1 m\u1eb7t g\u1ed3 gh\u1ec1 r\u1ea5t t\u1ed1t. Nh\u01b0ng keo c\u00f3 th\u1ec3 g\u00e2y b\u1eeba b\u1ed9n. N\u00f3 c\u00f3 th\u1ec3 b\u1ecb \u0111\u1ea9y ra ngo\u00e0i. N\u00f3 c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y theo ph\u01b0\u01a1ng ph\u00e1p b\u00f4i. N\u00f3 c\u0169ng ki\u1ec3m so\u00e1t r\u1ea5t \u00edt v\u1ec1 \u0111\u1ed9 d\u00e0y l\u1edbp li\u00ean k\u1ebft tr\u1eeb khi quy tr\u00ecnh \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd ch\u1eb7t ch\u1ebd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t cung c\u1ea5p m\u1ed9t b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh s\u1eb5n. Ch\u00fang d\u1ec5 \u0111\u1eb7t h\u01a1n. Ch\u00fang c\u00f3 th\u1ec3 cung c\u1ea5p kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eaft theo khu\u00f4n. Ch\u00fang c\u0169ng gi\u00fap vi\u1ec7c l\u1eafp r\u00e1p tr\u1edf n\u00ean s\u1ea1ch s\u1ebd h\u01a1n. S\u1ef1 \u0111\u00e1nh \u0111\u1ed5i l\u00e0 \u0111\u1ed9 d\u00e0y. C\u00e1c mi\u1ebfng \u0111\u1ec7m th\u01b0\u1eddng t\u1ea1o ra m\u1ed9t b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac d\u00e0y h\u01a1n so v\u1edbi keo t\u1ea3n nhi\u1ec7t.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Y\u1ebfu t\u1ed1<\/td><td class=\"has-text-align-center\" data-align=\"center\">Mi\u1ebfng t\u1ea3n nhi\u1ec7t cho module IGBT<\/td><td class=\"has-text-align-center\" data-align=\"center\">M\u1ee1 t\u1ea3n nhi\u1ec7t<\/td><\/tr><tr><td>H\u1ed9i \u0111\u1ed3ng<\/td><td>S\u1ea1ch s\u1ebd, \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh s\u1eb5n, d\u1ec5 \u0111\u1eb7t<\/td><td>\u0110\u00e3 c\u1ea5p ph\u00e1t ho\u1eb7c \u0111\u00e3 in<\/td><\/tr><tr><td>Ki\u1ec3m so\u00e1t \u0111\u1ed9 d\u00e0y<\/td><td>\u0110\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u0111\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 n\u00e9n c\u1ee7a \u0111\u1ec7m<\/td><td>T\u00f9y thu\u1ed9c v\u00e0o l\u01b0\u1ee3ng v\u00e0 \u00e1p su\u1ea5t<\/td><\/tr><tr><td>C\u00e1ch \u0111i\u1ec7n \u0111i\u1ec7n<\/td><td>C\u00f3 s\u1eb5n c\u00e1c c\u1ea5p c\u00e1ch \u0111i\u1ec7n<\/td><td>T\u00f9y thu\u1ed9c v\u00e0o c\u00f4ng th\u1ee9c<\/td><\/tr><tr><td>\u0110i\u1ec7n tr\u1edf nhi\u1ec7t<\/td><td>C\u00f3 th\u1ec3 cao h\u01a1n n\u1ebfu qu\u00e1 d\u00e0y<\/td><td>C\u00f3 th\u1ec3 r\u1ea5t th\u1ea5p n\u1ebfu m\u1ecfng v\u00e0 \u0111\u01b0\u1ee3c b\u00f4i \u0111\u1ec1u<\/td><\/tr><tr><td>S\u1eeda l\u1ea1i<\/td><td>Th\u01b0\u1eddng s\u1ea1ch s\u1ebd h\u01a1n<\/td><td>Y\u00eau c\u1ea7u v\u1ec7 sinh<\/td><\/tr><tr><td>R\u1ee7i ro quy tr\u00ecnh<\/td><td>Sai \u0111\u1ed9 d\u00e0y ho\u1eb7c \u0111\u1ed9 n\u00e9n<\/td><td>H\u00fat ch\u00e2n kh\u00f4ng, b\u1ecdt kh\u00ed, l\u1edbp ph\u1ee7 kh\u00f4ng \u0111\u1ec1u<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng t\u1ea3n nhi\u1ec7t l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p khi c\u1ea7n s\u1ef1 l\u1eafp r\u00e1p s\u1ea1ch s\u1ebd, kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n v\u00e0 t\u00ednh l\u1eb7p l\u1ea1i. Keo t\u1ea3n nhi\u1ec7t v\u1eabn c\u00f3 th\u1ec3 t\u1ed1t h\u01a1n khi b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac r\u1ea5t ph\u1eb3ng, \u0111\u01b0\u1ee3c k\u1eb9p ch\u1eb7t v\u00e0 m\u1ee5c ti\u00eau l\u00e0 l\u1edbp k\u1ebft d\u00ednh m\u1ecfng nh\u1ea5t c\u00f3 th\u1ec3. H\u01b0\u1edbng d\u1eabn c\u1ee7a HakTak v\u1ec1 <a href=\"https:\/\/haktak.com\/vi\/why-high-wmk-does-not-always-mean-better-cooling-performance\/\">t\u1ea1i sao h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t cao (W\/mK) kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t t\u1ed1t h\u01a1n<\/a> gi\u1ea3i th\u00edch l\u00fd do t\u1ea1i sao giao di\u1ec7n th\u1ef1c t\u1ebf l\u1ea1i quan tr\u1ecdng h\u01a1n m\u1ed9t con s\u1ed1 tr\u00ean b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vi\u1ec7c l\u1ef1a ch\u1ecdn t\u1ea5m t\u1ea3n nhi\u1ec7t cho module IGBT b\u1eaft \u0111\u1ea7u t\u1eeb t\u1ed5n th\u1ea5t c\u00f4ng su\u1ea5t<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"911\" height=\"600\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-16.png\" alt=\"IGBT module thermal pad selection starts with power loss\" class=\"wp-image-1355\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-16.png 911w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-16-300x198.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-16-768x506.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-16-600x395.png 600w\" sizes=\"(max-width: 911px) 100vw, 911px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eaft \u0111\u1ea7u v\u1edbi t\u1ea3i nhi\u1ec7t. Kh\u00f4ng c\u00f3 con s\u1ed1 \u0111\u00f3, vi\u1ec7c ch\u1ecdn \u0111\u1ec7m tr\u1edf th\u00e0nh m\u1ed9t tr\u00f2 \u0111o\u00e1n m\u00f2.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u01af\u1edbc t\u00ednh t\u1ed5n th\u1ea5t nhi\u1ec7t c\u1ee7a m\u00f4-\u0111un IGBT tr\u01b0\u1edbc khi ch\u1ecdn t\u1ea5m \u0111\u1ec7m nhi\u1ec7t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec7t l\u01b0\u1ee3ng c\u1ee7a module IGBT xu\u1ea5t ph\u00e1t t\u1eeb nhi\u1ec1u ngu\u1ed3n. C\u00e1c ngu\u1ed3n ch\u00ednh l\u00e0 t\u1ed5n hao d\u1eabn \u0111i\u1ec7n v\u00e0 t\u1ed5n hao chuy\u1ec3n m\u1ea1ch. C\u00e1c \u0111i-\u1ed1t b\u00ean trong module c\u0169ng c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u1ed5n hao. L\u1ef1a ch\u1ecdn m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n c\u1ed5ng v\u00e0 b\u1ed1 tr\u00ed m\u1ea1ch c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn con s\u1ed1 cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 n\u00ean x\u00e1c \u0111\u1ecbnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u1ed5ng t\u1ed5n th\u1ea5t m\u00f4-\u0111un t\u00ednh b\u1eb1ng watt<\/li>\n\n\n\n<li>T\u1ed5n th\u1ea5t tr\u00ean m\u1ed7i b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c nh\u00e1nh pha<\/li>\n\n\n\n<li>\u0110i\u1ec1u ki\u1ec7n t\u1ea3i \u0111\u1ec9nh<\/li>\n\n\n\n<li>\u0110i\u1ec1u ki\u1ec7n t\u1ea3i li\u00ean t\u1ee5c<\/li>\n\n\n\n<li>Nhi\u1ec7t \u0111\u1ed9 dung d\u1ecbch l\u00e0m m\u00e1t ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng<\/li>\n\n\n\n<li>Nhi\u1ec7t \u0111\u1ed9 ti\u1ebfp gi\u00e1p t\u1ed1i \u0111a<\/li>\n\n\n\n<li>Hi\u1ec7u su\u1ea5t c\u1ee7a t\u1ea5m t\u1ea3n nhi\u1ec7t ho\u1eb7c t\u1ea5m l\u00e0m m\u00e1t<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng \u0111\u1ec7m kh\u00f4ng t\u1ef1 l\u00e0m m\u00e1t m\u00f4-\u0111un. N\u00f3 l\u00e0 m\u1ed9t m\u1eaft x\u00edch trong chu\u1ed7i. Nh\u01b0ng n\u1ebfu mi\u1ebfng \u0111\u1ec7m t\u1ea1o ra qu\u00e1 nhi\u1ec1u \u0111i\u1ec7n tr\u1edf nhi\u1ec7t, to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng s\u1ebd n\u00f3ng h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00c1nh x\u1ea1 \u0111\u01b0\u1eddng truy\u1ec1n nhi\u1ec7t c\u1ee7a IGBT qua b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac nhi\u1ec7t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t \u0111\u01a1n gi\u1ea3n c\u00f3 th\u1ec3 tr\u00f4ng nh\u01b0 sau:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>\u0110i\u1ec3m n\u1ed1i IGBT<\/li>\n\n\n\n<li>G\u1eafn chip v\u00e0 \u0111\u1ebf<\/li>\n\n\n\n<li>\u0110\u1ebf module ho\u1eb7c \u0111\u00e1y module<\/li>\n\n\n\n<li>Mi\u1ebfng t\u1ea3n nhi\u1ec7t<\/li>\n\n\n\n<li>T\u1ea3n nhi\u1ec7t ho\u1eb7c t\u1ea5m l\u00e0m m\u00e1t<\/li>\n\n\n\n<li>L\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed ho\u1eb7c ch\u1ea5t l\u1ecfng<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i l\u1edbp \u0111\u1ec1u l\u00e0m t\u0103ng th\u00eam \u0111i\u1ec7n tr\u1edf nhi\u1ec7t. Mi\u1ebfng \u0111\u1ec7m tr\u00f4ng c\u00f3 v\u1ebb m\u1ecfng, nh\u01b0ng n\u00f3 n\u1eb1m ch\u1eafn ngang to\u00e0n b\u1ed9 d\u00f2ng nhi\u1ec7t. \u0110i\u1ec1u \u0111\u00f3 l\u00e0m cho \u0111\u1ed9 n\u00e9n, \u0111\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 ti\u1ebfp x\u00fac c\u1ee7a n\u00f3 tr\u1edf n\u00ean quan tr\u1ecdng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1eed d\u1ee5ng tr\u1edf kh\u00e1ng nhi\u1ec7t cho c\u00e1c t\u1ea5m \u0111\u1ec7m m\u00f4-\u0111un IGBT<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 d\u1eabn nhi\u1ec7t h\u1eefu \u00edch cho vi\u1ec7c s\u00e0ng l\u1ecdc. Tr\u1edf kh\u00e1ng nhi\u1ec7t h\u1eefu \u00edch h\u01a1n cho vi\u1ec7c l\u1ef1a ch\u1ecdn cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u1edf kh\u00e1ng nhi\u1ec7t bao g\u1ed3m \u0111\u1ed9 d\u00e0y th\u1ef1c t\u1ebf c\u1ee7a t\u1ea5m \u0111\u1ec7m v\u00e0 \u0111i\u1ec1u ki\u1ec7n ti\u1ebfp x\u00fac. \u0110i\u1ec1u \u0111\u00f3 quan tr\u1ecdng v\u00ec m\u1ed9t t\u1ea5m \u0111\u1ec7m c\u00f3 gi\u00e1 tr\u1ecb W\/mK t\u1ed1t v\u1eabn c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng k\u00e9m n\u1ebfu n\u00f3 qu\u00e1 d\u00e0y ho\u1eb7c kh\u00f4ng n\u00e9n t\u1ed1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM D5470 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u00e1c k\u1ef9 s\u01b0 c\u1ea7n d\u1eef li\u1ec7u truy\u1ec1n nhi\u1ec7t cho c\u00e1c v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n d\u1eabn nhi\u1ec7t. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u00edch h\u1ee3p cho c\u00e1c v\u1eadt li\u1ec7u t\u1ea3n nhi\u1ec7t (TIM) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng gi\u1eefa c\u00e1c module c\u00f4ng su\u1ea5t v\u00e0 b\u1ed9 t\u1ea3n nhi\u1ec7t v\u00ec n\u00f3 t\u1eadp trung v\u00e0o tr\u1edf kh\u00e1ng nhi\u1ec7t v\u00e0 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n bi\u1ec3u ki\u1ebfn trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. B\u1ea1n c\u00f3 th\u1ec3 xem trang ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh th\u1ee9c t\u1ea1i <a href=\"https:\/\/store.astm.org\/d5470-17.html\" target=\"_blank\" rel=\"noopener\">ASTM D5470<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HakTak c\u0169ng gi\u1ea3i th\u00edch \u0111i\u1ec1u n\u00e0y trong <a href=\"https:\/\/haktak.com\/vi\/thermal-conductivity-vs-thermal-impedance-tim-selection\/\">\u0110\u1ed9 d\u1eabn nhi\u1ec7t so v\u1edbi tr\u1edf kh\u00e1ng nhi\u1ec7t trong vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u d\u1eabn nhi\u1ec7t (TIM)<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t c\u00e1ch \u0111i\u1ec7n cho c\u00e1c m\u00f4-\u0111un IGBT<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1006\" height=\"636\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-7.png\" alt=\"Insulating thermal pads for IGBT modules\" class=\"wp-image-1413\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-7.png 1006w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-7-300x190.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-7-768x486.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-7-18x12.png 18w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-7-600x379.png 600w\" sizes=\"(max-width: 1006px) 100vw, 1006px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u trong c\u00e1c module c\u00f4ng su\u1ea5t. \u0110\u00f4i khi b\u1ea3n th\u00e2n module c\u00f3 m\u1ed9t \u0111\u1ebf c\u00e1ch \u0111i\u1ec7n. \u0110\u00f4i khi th\u00ec kh\u00f4ng. \u0110\u00f4i khi h\u1ec7 th\u1ed1ng v\u1eabn c\u1ea7n th\u00eam m\u1ed9t l\u1edbp c\u00e1ch \u0111i\u1ec7n b\u1ed5 sung v\u00ec l\u00fd do an to\u00e0n ho\u1eb7c thi\u1ebft k\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eebng cho r\u1eb1ng t\u1ea5m l\u00f3t c\u00e1ch \u0111i\u1ec7n. H\u00e3y ki\u1ec3m tra d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n \u0111i\u1ec7n c\u1ee7a t\u1ea3n nhi\u1ec7t IGBT<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 b\u1ec1n \u0111i\u1ec7n m\u00f4i cho bi\u1ebft v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111\u1ed9 \u0111i\u1ec7n tr\u01b0\u1eddng l\u00e0 bao nhi\u00eau tr\u01b0\u1edbc khi b\u1ecb \u0111\u00e1nh th\u1ee7ng. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea d\u01b0\u1edbi d\u1ea1ng kV\/mm ho\u1eb7c m\u1ed9t \u0111\u01a1n v\u1ecb t\u01b0\u01a1ng t\u1ef1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n r\u1eafn, <a href=\"https:\/\/store.astm.org\/d0149-20.html\" target=\"_blank\" rel=\"noopener\">ASTM D149<\/a> l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u tham kh\u1ea3o ph\u1ed5 bi\u1ebfn v\u1ec1 \u0111i\u1ec7n \u00e1p \u0111\u00e1nh th\u1ee7ng \u0111i\u1ec7n m\u00f4i v\u00e0 \u0111\u1ed9 b\u1ec1n \u0111i\u1ec7n m\u00f4i. Trong thi\u1ebft k\u1ebf m\u00f4-\u0111un IGBT, \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng v\u00ec m\u1ed9t t\u1ea5m t\u1ea3n nhi\u1ec7t c\u00f3 th\u1ec3 n\u1eb1m gi\u1eefa b\u1ec1 m\u1eb7t m\u00f4-\u0111un d\u1eabn \u0111i\u1ec7n v\u00e0 b\u1ec1 m\u1eb7t l\u00e0m m\u00e1t c\u00f3 n\u1ed1i \u0111\u1ea5t ho\u1eb7c d\u1eabn \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u00e2u h\u1ecfi quan tr\u1ecdng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110i\u1ec7n \u00e1p n\u00e0o ph\u1ea3i \u0111\u01b0\u1ee3c c\u00e1ch ly?<\/li>\n\n\n\n<li>B\u1ed9 t\u1ea3n nhi\u1ec7t c\u00f3 \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t kh\u00f4ng?<\/li>\n\n\n\n<li>T\u1ea5m l\u00e0m m\u00e1t c\u00f3 d\u1eabn \u0111i\u1ec7n kh\u00f4ng?<\/li>\n\n\n\n<li>\u0110\u1ebf module c\u00f3 \u0111\u01b0\u1ee3c c\u00e1ch ly \u0111i\u1ec7n kh\u00f4ng?<\/li>\n\n\n\n<li>C\u00f3 bi\u00ean \u0111\u1ed9 an to\u00e0n n\u00e0o cho c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 \u0111\u1ed9 kh\u00f4ng?<\/li>\n\n\n\n<li>\u0110i\u1ec1u g\u00ec x\u1ea3y ra sau khi n\u00e9n v\u00e0 gia nhi\u1ec7t (ho\u1eb7c: sau qu\u00e1 tr\u00ecnh n\u00e9n v\u00e0 l\u00e3o h\u00f3a)?<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110i\u1ec7n \u00e1p \u0111\u00e1nh th\u1ee7ng ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 d\u00e0y c\u1ee7a \u0111\u1ebf h\u00e0n cu\u1ed1i c\u00f9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 d\u00e0y n\u00e9n cu\u1ed1i c\u00f9ng r\u1ea5t quan tr\u1ecdng. M\u1ed9t t\u1ea5m \u0111\u1ec7m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c theo \u0111\u1ed9 d\u00e0y danh \u0111\u1ecbnh. Sau khi l\u1eafp \u0111\u1eb7t, n\u00f3 c\u00f3 th\u1ec3 m\u1ecfng h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu mi\u1ebfng \u0111\u1ec7m b\u1ecb n\u00e9n qu\u00e1 m\u1ee9c, bi\u00ean \u0111\u1ed9 \u0111i\u1ec7n m\u00f4i c\u00f3 th\u1ec3 gi\u1ea3m. N\u1ebfu mi\u1ebfng \u0111\u1ec7m qu\u00e1 d\u00e0y, nhi\u1ec7t tr\u1edf s\u1ebd t\u0103ng l\u00ean. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i c\u1ed1t l\u00f5i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft c\u1ee7a HakTak <a href=\"https:\/\/haktak.com\/vi\/electrically-insulating-thermal-pads-when-do-you-need-them\/\">T\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t c\u00e1ch \u0111i\u1ec7n: Khi n\u00e0o b\u1ea1n c\u1ea7n ch\u00fang?<\/a> \u0111\u1ec1 c\u1eadp \u0111\u1ebfn \u0111i\u1ec3m n\u00e0y chi ti\u1ebft h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kh\u00f4ng \u0111\u00e1nh \u0111\u1ed5i s\u1ef1 an to\u00e0n \u0111\u1ec3 l\u1ea5y nhi\u1ec7t tr\u1edf th\u1ea5p h\u01a1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng \u0111\u1ec7m m\u1ecfng h\u01a1n th\u01b0\u1eddng c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t. \u0110i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 n\u00f3 an to\u00e0n. N\u1ebfu thi\u1ebft k\u1ebf y\u00eau c\u1ea7u c\u00e1ch \u0111i\u1ec7n, mi\u1ebfng \u0111\u1ec7m ph\u1ea3i \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u \u0111\u00f3 sau khi n\u00e9n, ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 v\u00e0 l\u00e3o h\u00f3a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf nhi\u1ec7t kh\u00f4ng th\u1ec3 t\u00e1ch r\u1eddi kh\u1ecfi thi\u1ebft k\u1ebf \u0111i\u1ec7n \u1edf \u0111\u00e2y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110\u1ed9 d\u00e0y c\u1ee7a t\u1ea5m t\u1ea3n nhi\u1ec7t module IGBT<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"674\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-13.png\" alt=\"IGBT module thermal pad thickness\" class=\"wp-image-1352\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-13.png 900w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-13-300x225.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-13-768x575.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-13-600x449.png 600w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 d\u00e0y l\u00e0 m\u1ed9t trong nh\u1eefng \u0111i\u1ec1u \u0111\u1ea7u ti\u00ean c\u00e1c k\u1ef9 s\u01b0 ki\u1ec3m tra. N\u00f3 c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng th\u1ee9 d\u1ec5 l\u00e0m sai nh\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110o kho\u1ea3ng c\u00e1ch gi\u1eefa m\u00f4-\u0111un IGBT v\u00e0 t\u1ea5m t\u1ea3n nhi\u1ec7t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y s\u1eed d\u1ee5ng c\u1ee5m l\u1eafp r\u00e1p th\u1ef1c t\u1ebf n\u1ebfu c\u00f3 th\u1ec3. K\u00edch th\u01b0\u1edbc CAD l\u00e0 ch\u01b0a \u0111\u1ee7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sai s\u1ed1 \u0111\u1ebf module<\/li>\n\n\n\n<li>\u0110\u1ed9 ph\u1eb3ng c\u1ee7a t\u1ea3n nhi\u1ec7t<\/li>\n\n\n\n<li>\u0110\u1ed9 ph\u1eb3ng t\u1ea5m l\u1ea1nh<\/li>\n\n\n\n<li>\u0110\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t<\/li>\n\n\n\n<li>M\u00f4-men xo\u1eafn \u1ed1c v\u00edt l\u1eafp \u0111\u1eb7t<\/li>\n\n\n\n<li>Dung sai l\u1eafp gh\u00e9p<\/li>\n\n\n\n<li>S\u1ef1 gi\u00e3n n\u1edf v\u00ec nhi\u1ec7t<\/li>\n\n\n\n<li>B\u1ea5t k\u1ef3 \u0111i\u1ec3m d\u1eebng c\u01a1 kh\u00ed n\u00e0o<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110o kho\u1ea3ng h\u1edf t\u1ed1i thi\u1ec3u, danh \u0111\u1ecbnh v\u00e0 t\u1ed1i \u0111a.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ecdn t\u1ea5m l\u00f3t t\u1ea3n nhi\u1ec7t IGBT m\u1ecfng nh\u1ea5t l\u1ea5p \u0111\u1ea7y to\u00e0n b\u1ed9 kho\u1ea3ng h\u1edf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng \u0111\u1ec7m ph\u1ea3i ti\u1ebfp x\u00fac v\u1edbi c\u1ea3 hai b\u1ec1 m\u1eb7t \u1edf kho\u1ea3ng c\u00e1ch l\u1edbn nh\u1ea5t. N\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ecb nghi\u1ec1n n\u00e1t \u1edf kho\u1ea3ng c\u00e1ch nh\u1ecf nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quy t\u1eafc n\u00e0y r\u1ea5t thi\u1ebft th\u1ef1c:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1eed d\u1ee5ng mi\u1ebfng \u0111\u1ec7m m\u1ecfng nh\u1ea5t c\u00f3 th\u1ec3 l\u1ea5p \u0111\u1ea7y kho\u1ea3ng h\u1edf trong tr\u01b0\u1eddng h\u1ee3p x\u1ea5u nh\u1ea5t v\u00e0 n\u1eb1m trong ph\u1ea1m vi n\u00e9n an to\u00e0n.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft c\u1ee7a HakTak <a href=\"https:\/\/haktak.com\/vi\/how-to-select-thermal-pad-thickness-for-electronics\/\">C\u00e1ch ch\u1ecdn \u0111\u1ed9 d\u00e0y mi\u1ebfng t\u1ea3n nhi\u1ec7t cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed<\/a> Cung c\u1ea5p m\u1ed9t quy tr\u00ecnh l\u00e0m vi\u1ec7c h\u1eefu \u00edch cho ph\u1ea1m vi kho\u1ea3ng h\u1edf v\u00e0 \u0111\u1ed9 d\u00e0y \u0111\u1ec7m.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 d\u00e0y \u0111\u01b0\u1eddng keo cu\u1ed1i c\u00f9ng ki\u1ec3m so\u00e1t \u0111i\u1ec7n tr\u1edf nhi\u1ec7t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 d\u00e0y \u0111\u01b0\u1eddng keo l\u00e0 \u0111\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng sau khi d\u00e1n. Nhi\u1ec7t ph\u1ea3i truy\u1ec1n qua l\u1edbp \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 c\u00f3 m\u1ed9t \u01b0\u1edbc t\u00ednh \u0111\u01a1n gi\u1ea3n:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>R = t \/ (k \u00d7 A)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede \u0111\u00e2u:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R<\/strong> \u0111\u1ed9 c\u1ea3n nhi\u1ec7t<\/li>\n\n\n\n<li><strong>t<\/strong> l\u00e0 \u0111\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng<\/li>\n\n\n\n<li><strong>k<\/strong> d\u1eabn nhi\u1ec7t<\/li>\n\n\n\n<li><strong>A<\/strong> l\u00e0 di\u1ec7n t\u00edch ti\u1ebfp x\u00fac<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng tr\u00ecnh th\u00ec \u0111\u01a1n gi\u1ea3n. Vi\u1ec7c l\u1eafp r\u00e1p th\u00ec kh\u00f4ng. \u0110i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac c\u0169ng quan tr\u1ecdng. \u0110\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t v\u00e0 \u00e1p su\u1ea5t c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i k\u1ebft qu\u1ea3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn c\u1ee7a HakTak <a href=\"https:\/\/haktak.com\/vi\/how-bond-line-thickness-affects-thermal-performance\/\">\u0110\u1ed9 d\u00e0y \u0111\u01b0\u1eddng keo \u1ea3nh h\u01b0\u1edfng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn hi\u1ec7u su\u1ea5t nhi\u1ec7t<\/a> gi\u1ea3i th\u00edch t\u1ea1i sao \u0111\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng l\u1ea1i quan tr\u1ecdng h\u01a1n \u0111\u1ed9 d\u00e0y danh ngh\u0129a c\u1ee7a t\u1ea5m kim lo\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110\u1ed9 n\u00e9n t\u1ea5m d\u1eabn nhi\u1ec7t cho c\u00e1c module IGBT<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng t\u1ea3n nhi\u1ec7t c\u1ea7n \u0111\u01b0\u1ee3c n\u00e9n l\u1ea1i. N\u1ebfu kh\u00f4ng c\u00f3 l\u1ef1c n\u00e9n, mi\u1ebfng t\u1ea3n nhi\u1ec7t c\u00f3 th\u1ec3 kh\u00f4ng l\u1ea5p \u0111\u1ea7y \u0111\u01b0\u1ee3c c\u00e1c kho\u1ea3ng tr\u1ed1ng b\u1ec1 m\u1eb7t. Tuy nhi\u00ean, l\u1ef1c n\u00e9n qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">N\u00e9n ch\u01b0a \u0111\u1ee7 \u0111\u1ec3 l\u1ea1i c\u00e1c kho\u1ea3ng h\u1edf kh\u00f4ng kh\u00ed<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 n\u00e9n qu\u00e1 \u00edt c\u00f3 th\u1ec3 g\u00e2y ra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ti\u1ebfp x\u00fac k\u00e9m<\/li>\n\n\n\n<li>Tr\u1edf kh\u00e1ng nhi\u1ec7t cao<\/li>\n\n\n\n<li>C\u00e1c \u0111i\u1ec3m n\u00f3ng<\/li>\n\n\n\n<li>K\u1ebft qu\u1ea3 ki\u1ec3m tra kh\u00f4ng \u1ed5n \u0111\u1ecbnh<\/li>\n\n\n\n<li>Bi\u1ebfn \u0111\u1ed9ng gi\u1eefa c\u00e1c \u0111\u01a1n v\u1ecb<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng b\u1ed9 t\u1ea3n nhi\u1ec7t k\u00e9m hi\u1ec7u qu\u1ea3<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng x\u1ea3y ra khi mi\u1ebfng \u0111\u1ec7m qu\u00e1 m\u1ecfng, qu\u00e1 c\u1ee9ng ho\u1eb7c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi l\u1ef1c l\u1eafp r\u00e1p th\u1ea5p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">N\u00e9n qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u00e1c m\u00f4-\u0111un c\u00f4ng su\u1ea5t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e9n qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 g\u00e2y ra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u0103ng th\u1eb3ng m\u00f4-\u0111un<\/li>\n\n\n\n<li>\u0110\u1ebf b\u1ea3n u\u1ed1n cong<\/li>\n\n\n\n<li>\u0110\u00f9n \u0111\u1ec7m<\/li>\n\n\n\n<li>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec7n m\u00f4i gi\u1ea3m<\/li>\n\n\n\n<li>S\u1ef1 m\u00e9o m\u00f3 v\u1ec1 nh\u00e0 \u1edf<\/li>\n\n\n\n<li>\u00c1p l\u1ef1c kh\u00f4ng \u0111\u1ec1u<\/li>\n\n\n\n<li>\u0110\u1ed9 bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n do n\u00e9n d\u00e0i h\u1ea1n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00f4-\u0111un IGBT kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t chi\u1ebfc k\u1eb9p \u0111\u1ec3 \u00e9p m\u1ed9t t\u1ea5m \u0111\u1ec7m ch\u1eb7t nh\u1ea5t c\u00f3 th\u1ec3. M\u1ee5c ti\u00eau l\u00e0 ti\u1ebfp x\u00fac c\u00f3 ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00ednh to\u00e1n t\u1ef7 l\u1ec7 n\u00e9n c\u1ee7a mi\u1ebfng t\u1ea3n nhi\u1ec7t cho c\u00e1c module IGBT<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh to\u00e1n \u0111\u1ed9 n\u00e9n \u1edf kho\u1ea3ng h\u1edf t\u1ed1i thi\u1ec3u, danh \u0111\u1ecbnh v\u00e0 t\u1ed1i \u0111a. Kh\u00f4ng ch\u1ec9 t\u00ednh to\u00e1n n\u00f3 m\u1ed9t l\u1ea7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft c\u1ee7a HakTak <a href=\"https:\/\/haktak.com\/vi\/thermal-pad-compression-ratio-how-much-is-enough\/\">T\u1ef7 l\u1ec7 n\u00e9n mi\u1ebfng t\u1ea3n nhi\u1ec7t: Bao nhi\u00eau l\u00e0 \u0111\u1ee7?<\/a> gi\u1ea3i th\u00edch c\u00f4ng th\u1ee9c v\u00e0 b\u00e0i to\u00e1n dung sai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mi\u1ebfng t\u1ea3n nhi\u1ec7t m\u1ec1m v\u00e0 c\u1ee9ng cho c\u00e1c module IGBT<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"712\" height=\"465\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-2.png\" alt=\"Soft vs hard thermal pads for IGBT modules\" class=\"wp-image-1408\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-2.png 712w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-2-300x196.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-2-18x12.png 18w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-2-600x392.png 600w\" sizes=\"(max-width: 712px) 100vw, 712px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 c\u1ee9ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 \u00e9p mi\u1ebfng \u0111\u1ec7m. N\u00f3 c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng ti\u1ebfp x\u00fac.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t IGBT m\u1ec1m d\u00e0nh cho c\u00e1c b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac \u00e1p l\u1ef1c th\u1ea5p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ea5m \u0111\u1ec7m m\u1ec1m c\u00f3 th\u1ec3 gi\u00fap \u00edch khi \u00e1p l\u1ef1c b\u1ecb h\u1ea1n ch\u1ebf. Ch\u00fang c\u0169ng x\u1eed l\u00fd c\u00e1c l\u1ed7i \u0111\u1ed9 ph\u1eb3ng nh\u1ecf t\u1ed1t h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng \u0111\u1ec7m m\u1ec1m h\u1eefu \u00edch khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u1ea5m t\u1ea3n nhi\u1ec7t kh\u00f4ng ho\u00e0n to\u00e0n ph\u1eb3ng<\/li>\n\n\n\n<li>M\u00f4\u03b4un n\u00ean ch\u1ecbu \u00edt \u00e1p l\u1ef1c h\u01a1n<\/li>\n\n\n\n<li>\u0110\u1ed9 dung sai khe h\u1edf r\u1ed9ng h\u01a1n<\/li>\n\n\n\n<li>L\u1ef1c l\u1eafp r\u00e1p b\u1ecb h\u1ea1n ch\u1ebf<\/li>\n\n\n\n<li>C\u1ea7n \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac th\u1ea5p \u1edf \u00e1p su\u1ea5t th\u1ea5p<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t IGBT c\u1ee9ng h\u01a1n \u0111\u1ec3 l\u1eafp \u0111\u1eb7t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ea5m l\u00f3t c\u1ee9ng h\u01a1n c\u00f3 th\u1ec3 d\u1ec5 x\u1eed l\u00fd h\u01a1n. Ch\u00fang c\u00f3 th\u1ec3 gi\u1eef h\u00ecnh d\u1ea1ng t\u1ed1t h\u01a1n. Ch\u00fang c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t khi kho\u1ea3ng c\u00e1ch v\u00e0 \u00e1p su\u1ea5t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e1 phanh c\u1ee9ng h\u01a1n h\u1eefu \u00edch khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u1ea3n nhi\u1ec7t ph\u1eb3ng<\/li>\n\n\n\n<li>\u00c1p l\u1ef1c gia t\u0103ng l\u00e0 \u0111i\u1ec1u c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n tr\u01b0\u1edbc<\/li>\n\n\n\n<li>V\u1ecb tr\u00ed b\u1ebf r\u1ea5t quan tr\u1ecdng<\/li>\n\n\n\n<li>V\u1ea5n \u0111\u1ec1 v\u1ec7 sinh trong ch\u1ebf t\u1ea1o l\u1ea1i r\u1ea5t quan tr\u1ecdng<\/li>\n\n\n\n<li>Ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc l\u00e0 quan tr\u1ecdng<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng n\u00ean \u0111o\u00e1n \u0111\u1ed9 c\u1ee9ng b\u1eb1ng c\u1ea3m gi\u00e1c tay. ASTM D2240 l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n tham kh\u1ea3o cho \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u gi\u1ed1ng cao su, v\u00e0 n\u00f3 r\u1ea5t h\u1eefu \u00edch khi so s\u00e1nh c\u00e1c t\u1ea5m \u0111\u1ec7m \u0111\u00e0n h\u1ed3i. B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra trang ch\u00ednh th\u1ee9c t\u1ea1i <a href=\"https:\/\/store.astm.org\/d2240-15r21.html\" target=\"_blank\" rel=\"noopener\">ASTM D2240<\/a>. H\u01b0\u1edbng d\u1eabn c\u1ee7a HakTak <a href=\"https:\/\/haktak.com\/vi\/soft-vs-hard-thermal-pads-which-is-better\/\">Mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t m\u1ec1m v\u00e0 c\u1ee9ng: Lo\u1ea1i n\u00e0o t\u1ed1t h\u01a1n?<\/a> cung c\u1ea5p m\u1ed9t ch\u1ebf \u0111\u1ed9 xem l\u1ef1a ch\u1ecdn th\u1ef1c t\u1ebf h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a t\u1ea5m t\u1ea3n nhi\u1ec7t (thermal pad) quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c module IGBT<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">T\u00e0i s\u1ea3n<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nh\u1eefng k\u1ef9 s\u01b0 c\u1ea7n ki\u1ec3m tra<\/td><td class=\"has-text-align-center\" data-align=\"center\">T\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 quan tr\u1ecdng<\/td><\/tr><tr><td>Tr\u1edf kh\u00e1ng nhi\u1ec7t<\/td><td>Gi\u00e1 tr\u1ecb \u1edf \u00e1p su\u1ea5t v\u00e0 \u0111\u1ed9 d\u00e0y th\u1ef1c t\u1ebf<\/td><td>D\u1ef1 \u0111o\u00e1n truy\u1ec1n nhi\u1ec7t th\u1ef1c t\u1ebf t\u1ed1t h\u01a1n so v\u1edbi ch\u1ec9 d\u00f9ng W\/mK<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>Truy\u1ec1n nhi\u1ec7t v\u1eadt li\u1ec7u r\u1eddi<\/td><td>H\u1eefu \u00edch cho vi\u1ec7c s\u00e0ng l\u1ecdc<\/td><\/tr><tr><td>\u0110\u1ed9 d\u00e0y<\/td><td>\u0110\u1ed9 d\u00e0y danh \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 d\u00e0y n\u00e9n<\/td><td>\u0110i\u1ec1u khi\u1ec3n l\u1ea5p \u0111\u1ea7y khe h\u1edf v\u00e0 \u0111i\u1ec7n tr\u1edf<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng<\/td><td>\u0110\u1ed9 c\u1ee9ng Shore ho\u1eb7c gi\u00e1 tr\u1ecb durometer<\/td><td>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn l\u1ef1c n\u00e9n<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n \u0111i\u1ec7n \u0111i\u1ec7n m\u00f4i<\/td><td>kV\/mm ho\u1eb7c gi\u00e1 tr\u1ecb li\u00ean quan<\/td><td>D\u00f9ng \u0111\u1ec3 c\u00e1ch nhi\u1ec7t<\/td><\/tr><tr><td>\u0110i\u1ec7n \u00e1p \u0111\u00e1nh th\u1ee7ng<\/td><td>\u0110i\u1ec7n \u00e1p t\u1ea1i th\u1eddi \u0111i\u1ec3m h\u1ecfng khi th\u1eed nghi\u1ec7m<\/td><td>Gi\u00fap thi\u1ebft l\u1eadp bi\u00ean an to\u00e0n<\/td><\/tr><tr><td>\u0110\u1ed9 bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n sau n\u00e9n<\/td><td>Ph\u1ee5c h\u1ed3i l\u00e2u d\u00e0i sau khi b\u1ecb ch\u00e8n \u00e9p<\/td><td>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn li\u00ean l\u1ea1c theo th\u1eddi gian<\/td><\/tr><tr><td>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/td><td>D\u1ea3i li\u00ean t\u1ee5c v\u00e0 d\u1ea3i \u0111\u1ec9nh<\/td><td>Ng\u0103n ng\u1eeba s\u1ef1 m\u1ec1m nh\u0169n ho\u1eb7c l\u00e3o h\u00f3a<\/td><\/tr><tr><td>T\u00ednh d\u1ec5 ch\u00e1y<\/td><td>\u0110\u00e1nh gi\u00e1 n\u1ebfu c\u1ea7n<\/td><td>Quan tr\u1ecdng \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111i\u1ec7n<\/td><\/tr><tr><td>H\u00e0nh vi l\u00e0m l\u1ea1i<\/td><td>Lo\u1ea1i b\u1ecf v\u00e0 c\u1eb7n<\/td><td>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn b\u1ea3o tr\u00ec<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea5m t\u1ea3n nhi\u1ec7t IGBT trong bi\u1ebfn t\u1ea7n xe \u0111i\u1ec7n v\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bi\u1ebfn t\u1ea7n v\u00e0 b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 xe \u0111i\u1ec7n r\u1ea5t kh\u1eaft khe. Ch\u00fang ph\u1ea3i ch\u1ecbu s\u1ef1 thay \u0111\u1ed5i t\u1ea3i tr\u1ecdng. Ch\u00fang ph\u1ea3i ch\u1ecbu chu k\u1ef3 nhi\u1ec7t. Ch\u00fang c\u00f3 th\u1ec3 ph\u1ea3i ch\u1ecbu rung \u0111\u1ed9ng. Ch\u00fang c\u0169ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 tin c\u1eady cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea5m t\u1ea3n nhi\u1ec7t cho m\u00f4-\u0111un IGBT xe \u0111i\u1ec7n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ec7 th\u1ed1ng xe \u0111i\u1ec7n c\u1ea7n kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t \u1ed5n \u0111\u1ecbnh. M\u1ed9t t\u1ea5m \u0111\u1ec7m c\u00f3 th\u1ec3 ph\u1ea3i ch\u1ecbu \u0111\u1ef1ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chu k\u1ef3 nhi\u1ec7t<\/li>\n\n\n\n<li>Rung \u0111\u1ed9ng<\/li>\n\n\n\n<li>\u0110i\u1ec7n \u00e1p cao<\/li>\n\n\n\n<li>Tu\u1ed5i th\u1ecd ho\u1ea1t \u0111\u1ed9ng l\u00e2u d\u00e0i<\/li>\n\n\n\n<li>Coolant temperature swings<\/li>\n\n\n\n<li>Mechanical assembly variation<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In this use case, initial thermal resistance is not enough. Aging data matters.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Thermal pads for industrial IGBT modules<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Industrial drives may run for long hours. They may sit in cabinets with limited airflow. They may see dust, heat, and vibration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The pad should be checked for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Long-term compression stability<\/li>\n\n\n\n<li>Thermal aging<\/li>\n\n\n\n<li>Dielectric performance<\/li>\n\n\n\n<li>Mounting repeatability<\/li>\n\n\n\n<li>Heat sink flatness sensitivity<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">IGBT thermal pads vs phase change materials, putty, and potting<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Thermal pads are not the only TIM for power modules.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Phase change materials for IGBT modules<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Phase change materials soften when the module heats up. They can improve wetting after activation. They can also be cleaner than grease.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft c\u1ee7a HakTak <a href=\"https:\/\/haktak.com\/vi\/pcm-thermal-pads-explained\/\">PCM Thermal Pads Explained<\/a> explains how phase change materials behave at operating temperature.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Thermal putty for uneven power electronics gaps<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Putty can help when the interface is not flat or when component heights vary. A fixed sheet pad may not handle that as well.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For uneven interfaces, HakTak&#8217;s article <a href=\"https:\/\/haktak.com\/vi\/thermal-putty-vs-thermal-pad-uneven-gaps\/\">Keo t\u1ea3n nhi\u1ec7t d\u1ea1ng \u0111\u1ea5t n\u1eb7n (Thermal Putty) vs Mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t (Thermal Pad): C\u00e1ch l\u1ef1a ch\u1ecdn cho c\u00e1c khe h\u1edf kh\u00f4ng \u0111\u1ec1u<\/a> is directly relevant.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Potting compounds for encapsulated power electronics<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Potting compounds are used when components need encapsulation, protection, and heat transfer through a filled volume. They are not a simple pad replacement. They change the assembly and rework process.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Testing thermal pads for IGBT modules<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Testing should match the real system. A flat lab coupon is useful, but it does not replace module-level testing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Test thermal impedance at realistic pressure<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The pad should be tested at a pressure that resembles the real mounting condition. If the datasheet value was measured at high pressure, it may not match your assembly.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Test dielectric strength after compression<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If the pad provides insulation, test after compression or at an equivalent final thickness. Also test after heat aging if the application is severe.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Test thermal cycling and power cycling<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">IGBT modules heat and cool during operation. The pad must maintain contact.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Test:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chu k\u1ef3 nhi\u1ec7t<\/li>\n\n\n\n<li>T\u1eaft v\u00e0 b\u1eadt l\u1ea1i ngu\u1ed3n<\/li>\n\n\n\n<li>L\u00e3o h\u00f3a nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n\n\n\n<li>Rung \u0111\u1ed9ng<\/li>\n\n\n\n<li>Humidity if relevant<\/li>\n\n\n\n<li>\u0110\u1ed9 bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n sau n\u00e9n<\/li>\n\n\n\n<li>S\u1eeda l\u1ea1i<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For polymer thermal property testing, <a href=\"https:\/\/www.iso.org\/standard\/81836.html\" target=\"_blank\" rel=\"noopener\">ISO 22007-2<\/a> covers the transient plane heat source method for thermal conductivity and diffusivity. It can support material screening, but final IGBT module validation still needs the real assembly.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common mistakes when selecting thermal pads for IGBT modules<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The first mistake is choosing by W\/mK alone. Thermal impedance, thickness, and pressure often matter more.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The second mistake is ignoring dielectric strength. IGBT systems can involve high voltage. Insulation must be proven.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The third mistake is using nominal gap only. Minimum and maximum gap drive real compression.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The fourth mistake is choosing a pad that is too thick. This can raise thermal resistance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The fifth mistake is choosing a pad that is too hard. It may not compress enough.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The sixth mistake is over-compressing the pad. That can reduce dielectric margin and add stress.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The seventh mistake is skipping thermal cycling. IGBT modules rarely live at one steady temperature.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The eighth mistake is treating the pad as a fix for poor heat sink flatness. The mechanical design still matters.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H2: Selection checklist for IGBT module thermal pads<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Step<\/td><td class=\"has-text-align-center\" data-align=\"center\">What to check<\/td><td class=\"has-text-align-center\" data-align=\"center\">Good engineering question<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td>Heat load<\/td><td>How many watts must cross the pad?<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td>Khu v\u1ef1c li\u00ean h\u1ec7<\/td><td>Is the heat flux concentrated or spread out?<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td>Gap range<\/td><td>What are the min, nominal, and max gaps?<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">4<\/td><td>\u0110\u1ed9 d\u00e0y<\/td><td>What is the final compressed thickness?<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td>Compression<\/td><td>Is the pad compressed enough but not too much?<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><td>Dielectric rating<\/td><td>Does it meet voltage isolation after compression?<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><td>\u0110\u1ed9 c\u1ee9ng<\/td><td>Can the assembly provide enough pressure?<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><td>\u0110\u1ed9 ph\u1eb3ng c\u1ee7a t\u1ea3n nhi\u1ec7t<\/td><td>Will the pad contact the full surface?<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td>\u0110\u1ed9 tin c\u1eady<\/td><td>What happens after aging and cycling?<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td>S\u1ea3n xu\u1ea5t<\/td><td>Can it be placed repeatably?<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">HakTak perspective<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">At HakTak, we treat IGBT thermal pads as part of the full power module design. The pad is not just a sheet of material. It must match the heat load, voltage requirement, gap, mounting force, and lifetime target.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For an accurate recommendation, engineers should provide:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>IGBT module type<\/li>\n\n\n\n<li>Heat loss or power dissipation<\/li>\n\n\n\n<li>Khu v\u1ef1c li\u00ean h\u1ec7<\/li>\n\n\n\n<li>Heat sink or cold plate material<\/li>\n\n\n\n<li>Minimum, nominal, and maximum gap<\/li>\n\n\n\n<li>Required dielectric strength or breakdown voltage<\/li>\n\n\n\n<li>Available mounting pressure or torque<\/li>\n\n\n\n<li>\u0110\u1ed9 ph\u1eb3ng c\u1ee7a t\u1ea3n nhi\u1ec7t<\/li>\n\n\n\n<li>Operating temperature range<\/li>\n\n\n\n<li>Thermal cycling requirement<\/li>\n\n\n\n<li>Vibration or shock requirement<\/li>\n\n\n\n<li>Rework requirement<\/li>\n\n\n\n<li>Production volume and placement method<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">With this data, HakTak can recommend pad thickness, hardness, conductivity grade, dielectric rating, and compression range. The best answer is rarely just &#8220;use the highest W\/mK.&#8221; It is usually a balance between thermal impedance, insulation, stress, and reliability.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Thermal pads for IGBT modules need careful selection. The pad must move heat into the heat sink or cold plate. It may need to provide electrical insulation. It must compress correctly. It must survive heat, time, and cycling.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Start with heat loss, voltage isolation, contact area, and gap range. Then compare thermal impedance, thickness, hardness, compression, dielectric strength, and reliability data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For IGBT modules, a thermal pad is not a small accessory. It is part of the power electronics reliability path. Choose it like an engineering component, not a catalog filler.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Do IGBT modules need thermal pads?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Some IGBT modules use thermal grease, while others can use thermal pads or phase change materials. Pads are useful when clean assembly, controlled thickness, insulation, or repeatability is needed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What is the best thermal pad for an IGBT module?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The best pad depends on heat loss, contact area, voltage isolation, gap size, compression force, thickness, hardness, and reliability requirements.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Should I choose an insulating thermal pad for an IGBT module?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Choose an insulating pad when the interface must block current between the module and a conductive heat sink, housing, or cold plate.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Is higher W\/mK always better for IGBT module thermal pads?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No. Higher W\/mK helps only when thickness, pressure, contact quality, and dielectric requirements are also correct.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How thick should an IGBT thermal pad be?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It should be thick enough to fill the maximum gap and thin enough to limit thermal resistance. Check final compressed thickness.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How much compression does an IGBT thermal pad need?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It needs enough compression for full contact, but not so much that it stresses the module or reduces dielectric margin.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can thermal grease replace a thermal pad for IGBT modules?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes, in some flat and well-clamped interfaces. A pad may be better when insulation, clean assembly, or thickness control is needed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can thermal putty replace an IGBT thermal pad?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It can help in uneven or irregular gaps. For flat module-to-heat-sink interfaces, pads or grease are often easier to control.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What tests should engineers run before production?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Test thermal impedance, module temperature, dielectric strength after compression, thermal cycling, vibration, aging, and final assembly repeatability.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What data should I send to a thermal pad supplier?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Send heat loss, contact area, gap range, voltage requirement, heat sink material, pressure or torque, temperature range, and reliability conditions.<\/p>","protected":false},"excerpt":{"rendered":"<p>Engineers should check thermal impedance, dielectric strength, final bond line thickness, compression force, gap tolerance, surface flatness, operating temperature, and 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