{"id":1581,"date":"2026-06-26T08:05:41","date_gmt":"2026-06-26T08:05:41","guid":{"rendered":"https:\/\/haktak.com\/?p=1581"},"modified":"2026-06-26T08:18:24","modified_gmt":"2026-06-26T08:18:24","slug":"thermal-pad-compression-ratio-how-much-is-enough","status":"publish","type":"post","link":"https:\/\/haktak.com\/vi\/thermal-pad-compression-ratio-how-much-is-enough\/","title":{"rendered":"T\u1ef7 l\u1ec7 n\u00e9n mi\u1ebfng t\u1ea3n nhi\u1ec7t: Bao nhi\u00eau l\u00e0 \u0111\u1ee7?"},"content":{"rendered":"<div class=\"product\"><div class=\"product\">\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 n\u00e9n c\u1ee7a mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t l\u00e0 \u0111\u1ee7 khi mi\u1ebfng \u0111\u1ec7m ti\u1ebfp x\u00fac ho\u00e0n to\u00e0n v\u1edbi c\u1ea3 hai b\u1ec1 m\u1eb7t, l\u1ea5p \u0111\u1ea7y khe h\u1edf qua c\u00e1c bi\u1ebfn \u0111\u1ed9ng dung sai, l\u00e0m gi\u1ea3m \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac v\u00e0 kh\u00f4ng t\u1ea1o ra l\u1ef1c c\u01a1 h\u1ecdc qu\u00e1 m\u1ee9c l\u00ean b\u1ea3ng m\u1ea1ch in (PCB), linh ki\u1ec7n, c\u00e1c m\u1ed1i h\u00e0n ho\u1eb7c v\u1ecf m\u00e1y. Kh\u00f4ng c\u00f3 t\u1ef7 l\u1ec7 n\u00e9n ph\u1ed5 qu\u00e1t n\u00e0o ph\u00f9 h\u1ee3p cho m\u1ecdi mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t. Nhi\u1ec1u thi\u1ebft k\u1ebf h\u01b0\u1edbng \u0111\u1ebfn m\u1ee9c n\u00e9n v\u1eeba ph\u1ea3i, nh\u01b0ng gi\u00e1 tr\u1ecb ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 d\u00e0y c\u1ee7a mi\u1ebfng \u0111\u1ec7m, \u0111\u1ed9 c\u1ee9ng, dung sai khe h\u1edf, \u00e1p l\u1ef1c c\u00f3 s\u1eb5n, \u0111\u1ed9 ph\u1eb3ng c\u1ee7a b\u1ec1 m\u1eb7t, c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111i\u1ec7n m\u00f4i v\u00e0 th\u1eed nghi\u1ec7m \u0111\u1ed9 tin c\u1eady.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1016\" height=\"666\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-18.png\" alt=\"ty-le-nen-dem-tan-nhiet-bao-nhieu-la-du\" class=\"wp-image-1451\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-18.png 1016w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-18-300x197.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-18-768x503.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-18-18x12.png 18w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-18-600x393.png 600w\" sizes=\"(max-width: 1016px) 100vw, 1016px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n: <strong>\u0110\u1ed9 n\u00e9n \u0111\u1ee7 c\u00f3 ngh\u0129a l\u00e0 ti\u1ebfp x\u00fac nhi\u1ec7t ho\u00e0n to\u00e0n m\u00e0 kh\u00f4ng l\u00e0m qu\u00e1 t\u1ea3i c\u1ee5m l\u1eafp r\u00e1p.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e9n qu\u00e1 \u00edt c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i c\u00e1c kho\u1ea3ng tr\u1ed1ng kh\u00f4ng kh\u00ed v\u00e0 \u0111i\u1ec7n tr\u1edf nhi\u1ec7t cao. N\u00e9n qu\u00e1 nhi\u1ec1u c\u00f3 th\u1ec3 l\u00e0m cong bo m\u1ea1ch, n\u1ee9t linh ki\u1ec7n, bi\u1ebfn d\u1ea1ng v\u1ecf, l\u00e0m b\u00f3p m\u00e9o mi\u1ebfng \u0111\u1ec7m, gi\u1ea3m bi\u00ean \u0111\u1ed9 \u0111i\u1ec7n m\u00f4i, ho\u1eb7c g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n do n\u00e9n l\u00e2u d\u00e0i. C\u00e1c k\u1ef9 s\u01b0 n\u00ean t\u00ednh to\u00e1n \u0111\u1ed9 n\u00e9n \u1edf c\u00e1c \u0111i\u1ec1u ki\u1ec7n kho\u1ea3ng h\u1edf t\u1ed1i thi\u1ec3u, danh ngh\u0129a v\u00e0 t\u1ed1i \u0111a, sau \u0111\u00f3 ki\u1ec3m ch\u1ee9ng tr\u1edf kh\u00e1ng nhi\u1ec7t v\u00e0 \u0111\u1ed9 tin c\u1eady c\u01a1 h\u1ecdc trong s\u1ea3n ph\u1ea9m th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ef7 l\u1ec7 n\u00e9n c\u1ee7a t\u1ea3n nhi\u1ec7t d\u1ea1ng t\u1ea5m l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ef7 s\u1ed1 n\u00e9n c\u1ee7a mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t l\u00e0 ph\u1ea7n tr\u0103m gi\u1ea3m \u0111\u1ed9 d\u00e0y c\u1ee7a mi\u1ebfng \u0111\u1ec7m sau khi mi\u1ebfng \u0111\u1ec7m \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p gi\u1eefa ngu\u1ed3n nhi\u1ec7t v\u00e0 b\u1ec1 m\u1eb7t l\u00e0m m\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ef7 l\u1ec7 n\u00e9n = (ban \u0111\u1ea7u <\/strong><strong>t\u1ea5m \u0111\u1ec7m<\/strong><strong> \u0111\u1ed9 d\u00e0y \u2013 \u0111\u1ed9 d\u00e0y n\u00e9n) \/ \u0111\u1ed9 d\u00e0y mi\u1ebfng \u0111\u1ec7m ban \u0111\u1ea7u \u00d7 100%<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, n\u1ebfu m\u1ed9t mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t 2,0 mm b\u1ecb n\u00e9n xu\u1ed1ng 1,6 mm sau khi l\u1eafp r\u00e1p:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>(2.0 \u2013 1.6) \/ 2.0 \u00d7 100% = 20% n\u00e9n<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 d\u00e0y mi\u1ebfng \u0111\u1ec7m ban \u0111\u1ea7u l\u00e0 \u0111\u1ed9 d\u00e0y \u0111\u01b0\u1ee3c cung c\u1ea5p. \u0110\u1ed9 d\u00e0y n\u00e9n l\u00e0 \u0111\u1ed9 d\u00e0y \u0111\u01b0\u1eddng li\u00ean k\u1ebft cu\u1ed1i c\u00f9ng sau khi thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p. \u0110\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng n\u00e0y ch\u00ednh l\u00e0 th\u1ee9 m\u00e0 nhi\u1ec7t th\u1ef1c s\u1ef1 truy\u1ec1n qua trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ef7 s\u1ed1 n\u00e9n r\u1ea5t quan tr\u1ecdng v\u00ec c\u00e1c mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng d\u01b0\u1edbi \u00e1p l\u1ef1c. \u0110\u1ed9 n\u00e9n ph\u00f9 h\u1ee3p gi\u00fap mi\u1ebfng \u0111\u1ec7m th\u00edch \u1ee9ng v\u1edbi \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t, l\u1ea5p \u0111\u1ea7y c\u00e1c kho\u1ea3ng tr\u1ed1ng kh\u00f4ng kh\u00ed nh\u1ecf v\u00e0 t\u1ea1o ra m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t ho\u00e0n thi\u1ec7n h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao mi\u1ebfng t\u1ea3n nhi\u1ec7t c\u1ea7n \u0111\u1ed9 n\u00e9n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea5m t\u1ea3n nhi\u1ec7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng gi\u1eefa c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed v\u00e0 b\u1ec1 m\u1eb7t l\u00e0m m\u00e1t nh\u01b0 b\u1ed9 t\u1ea3n nhi\u1ec7t, v\u1ecf kim lo\u1ea1i, t\u1ea5m t\u1ea3n nhi\u1ec7t l\u1ea1nh, khung m\u00e1y ho\u1eb7c v\u1ecf b\u1ecdc. C\u00e1c b\u1ec1 m\u1eb7t n\u00e0y kh\u00f4ng bao gi\u1edd ph\u1eb3ng ho\u00e0n to\u00e0n. Ngay c\u1ea3 kim lo\u1ea1i \u0111\u01b0\u1ee3c gia c\u00f4ng v\u00e0 c\u00e1c g\u00f3i linh ki\u1ec7n \u0111\u01b0\u1ee3c \u0111\u00fac c\u0169ng ch\u1ee9a c\u00e1c \u0111\u1ec9nh v\u00e0 thung l\u0169ng vioscopic.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u00f3 l\u1ef1c n\u00e9n, mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t c\u00f3 th\u1ec3 ch\u1ec9 ti\u1ebfp x\u00fac v\u1edbi c\u00e1c \u0111i\u1ec3m cao nh\u1ea5t. Kh\u00f4ng kh\u00ed v\u1eabn c\u00f2n trong c\u00e1c kho\u1ea3ng tr\u1ed1ng. V\u00ec kh\u00f4ng kh\u00ed c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t r\u1ea5t th\u1ea5p, c\u00e1c kho\u1ea3ng tr\u1ed1ng \u0111\u00f3 l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac v\u00e0 l\u00e0m t\u0103ng nhi\u1ec7t \u0111\u1ed9 linh ki\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 n\u00e9n gi\u00fap cho mi\u1ebfng \u0111\u1ec7m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u0103ng di\u1ec7n t\u00edch ti\u1ebfp x\u00fac th\u1ef1c t\u1ebf<\/li>\n\n\n\n<li>\u0110\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t chi\u1ebft r\u00f3t<\/li>\n\n\n\n<li>Gi\u1ea3m b\u1ecdt kh\u00ed<\/li>\n\n\n\n<li>Gi\u1ea3m \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac<\/li>\n\n\n\n<li>Ki\u1ec3m so\u00e1t \u0111\u1ed9 d\u00e0y \u0111\u01b0\u1eddng li\u00ean k\u1ebft cu\u1ed1i c\u00f9ng<\/li>\n\n\n\n<li>B\u00f9 \u0111\u1eafp cho s\u1ef1 bi\u1ebfn \u0111\u1ed9ng dung sai nh\u1ecf<\/li>\n\n\n\n<li>C\u1ea3i thi\u1ec7n \u0111\u1ed9 l\u1eb7p l\u1ea1i gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft c\u1ee7a HakTak <a href=\"https:\/\/haktak.com\/vi\/how-compression-affects-thermal-pad-performance\/\">\u0110\u1ed9 n\u00e9n \u1ea3nh h\u01b0\u1edfng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t<\/a> gi\u1ea3i th\u00edch chi ti\u1ebft m\u1ed1i quan h\u1ec7 n\u00e0y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00f3 t\u1ef7 l\u1ec7 n\u00e9n ti\u00eau chu\u1ea9n n\u00e0o kh\u00f4ng?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"894\" height=\"667\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-11.png\" alt=\"C\u00f3 t\u1ef7 l\u1ec7 n\u00e9n ti\u00eau chu\u1ea9n n\u00e0o kh\u00f4ng?\" class=\"wp-image-1350\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-11.png 894w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-11-300x224.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-11-768x573.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/02\/image-11-600x448.png 600w\" sizes=\"(max-width: 894px) 100vw, 894px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u00f3 m\u1ed9t t\u1ef7 l\u1ec7 n\u00e9n ph\u1ed5 qu\u00e1t duy nh\u1ea5t cho t\u1ea5t c\u1ea3 c\u00e1c mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t. T\u1ef7 l\u1ec7 n\u00e9n ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o c\u00f4ng th\u1ee9c v\u1eadt li\u1ec7u v\u00e0 thi\u1ebft k\u1ebf s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 t\u1ea5m \u0111\u1ec7m \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho l\u1ef1c n\u00e9n th\u1ea5p h\u01a1n. Nh\u1eefng t\u1ea5m kh\u00e1c c\u1ea7n l\u1ef1c n\u00e9n l\u1edbn h\u01a1n \u0111\u1ec3 ti\u1ebfp x\u00fac ho\u00e0n to\u00e0n. C\u00e1c t\u1ea5m \u0111\u1ec7m m\u1ec1m h\u01a1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng n\u00e9n l\u1ea1i \u1edf \u00e1p su\u1ea5t th\u1ea5p. C\u00e1c t\u1ea5m \u0111\u1ec7m c\u1ee9ng h\u01a1n c\u00f3 th\u1ec3 c\u1ea7n l\u1ef1c l\u1edbn h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ef7 l\u1ec7 n\u00e9n ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 d\u00e0y \u0111\u1ec7m<\/li>\n\n\n\n<li>\u0110\u1ed9 c\u1ee9ng c\u1ee7a mi\u1ebfng \u0111\u1ec7m<\/li>\n\n\n\n<li>K\u00edch th\u01b0\u1edbc kho\u1ea3ng c\u00e1ch<\/li>\n\n\n\n<li>Dung sai khe h\u1edf<\/li>\n\n\n\n<li>Khu v\u1ef1c li\u00ean h\u1ec7<\/li>\n\n\n\n<li>\u0110\u1ed9 ph\u1eb3ng b\u1ec1 m\u1eb7t<\/li>\n\n\n\n<li>\u00c1p su\u1ea5t l\u1eafp r\u00e1p<\/li>\n\n\n\n<li>T\u00ednh d\u1ec5 v\u1ee1 c\u1ee7a linh ki\u1ec7n<\/li>\n\n\n\n<li>\u0110\u1ed9 c\u1ee9ng PCB<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u c\u00e1ch \u0111i\u1ec7n<\/li>\n\n\n\n<li>M\u1ee5c ti\u00eau tr\u1edf kh\u00e1ng nhi\u1ec7t<\/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\n\n\n<li>D\u1ea3i nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao b\u1ea3ng d\u1eef li\u1ec7u c\u1ee7a nh\u00e0 cung c\u1ea5p th\u01b0\u1eddng cung c\u1ea5p c\u00e1c kho\u1ea3ng n\u00e9n \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb, \u0111\u01b0\u1eddng cong n\u00e9n-\u0111\u1ed9 bi\u1ebfn d\u1ea1ng ho\u1eb7c gi\u00e1 tr\u1ecb tr\u1edf kh\u00e1ng nhi\u1ec7t \u1edf c\u00e1c \u00e1p su\u1ea5t kh\u00e1c nhau. C\u00e1c k\u1ef9 s\u01b0 n\u00ean s\u1eed d\u1ee5ng c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u \u0111\u00f3 l\u00e0m \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u, sau \u0111\u00f3 ki\u1ec3m tra c\u1ee5m l\u1eafp r\u00e1p th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Chuy\u1ec7n g\u00ec x\u1ea3y ra khi n\u00e9n qu\u00e1 \u00edt?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 n\u00e9n qu\u00e1 \u00edt th\u01b0\u1eddng c\u00f3 ngh\u0129a l\u00e0 ti\u1ebfp x\u00fac k\u00e9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t kh\u00f4ng b\u1ecb n\u00e9n \u0111\u1ee7 m\u1ee9c, n\u00f3 c\u00f3 th\u1ec3 kh\u00f4ng l\u1ea5p \u0111\u1ea7y \u0111\u01b0\u1ee3c \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t ho\u1eb7c kh\u00f4ng ch\u1ea1m v\u00e0o c\u1ea3 hai b\u1ec1 m\u1eb7t tr\u00ean to\u00e0n b\u1ed9 di\u1ec7n t\u00edch ti\u1ebfp x\u00fac. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c \u0111i\u1ec3m n\u00f3ng v\u00e0 hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c tri\u1ec7u ch\u1ee9ng c\u1ee7a vi\u1ec7c n\u00e9n \u00e9p kh\u00f4ng \u0111\u1ee7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c d\u1ea5u hi\u1ec7u ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nhi\u1ec7t \u0111\u1ed9 linh ki\u1ec7n cao h\u01a1n<\/li>\n\n\n\n<li>S\u1ef1 dao \u0111\u1ed9ng l\u1edbn gi\u1eefa c\u00e1c \u0111\u01a1n v\u1ecb<\/li>\n\n\n\n<li>C\u00e1c \u0111i\u1ec3m n\u00f3ng \u0111\u1ecba ph\u01b0\u01a1ng<\/li>\n\n\n\n<li>K\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m nhi\u1ec7t kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t<\/li>\n\n\n\n<li>V\u1ebft ti\u1ebfp x\u00fac k\u00e9m sau khi th\u00e1o r\u1eddi<\/li>\n\n\n\n<li>Mi\u1ebfng \u0111\u1ec7m kh\u00f4ng b\u1ecb n\u00e9n x\u1eb9p r\u00f5 r\u1ec7t<\/li>\n\n\n\n<li>Khe h\u1edf kh\u00f4ng kh\u00ed \u1edf \u0111i\u1ec1u ki\u1ec7n dung sai t\u1ed1i \u0111a<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Nguy\u00ean nh\u00e2n g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng n\u00e9n kh\u00f4ng \u0111\u1ee7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7n t\u01b0\u1ee3ng n\u00e9n ch\u01b0a \u0111\u1ee7 (under-compression) th\u01b0\u1eddng x\u1ea3y ra khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mi\u1ebfng \u0111\u1ec7m qu\u00e1 m\u1ecfng \u0111\u1ed1i v\u1edbi kho\u1ea3ng h\u1edf t\u1ed1i \u0111a<\/li>\n\n\n\n<li>Mi\u1ebfng \u0111\u1ec7m qu\u00e1 c\u1ee9ng \u0111\u1ed1i v\u1edbi l\u1ef1c c\u00f3 s\u1eb5n<\/li>\n\n\n\n<li>M\u00f4-men xo\u1eafn c\u1ee7a \u1ed1c v\u00edt qu\u00e1 th\u1ea5p<\/li>\n\n\n\n<li>Ph\u1ea7n v\u1ecf kh\u00f4ng \u0111\u1ee7 c\u1ee9ng<\/li>\n\n\n\n<li>C\u00e1c b\u1ec1 m\u1eb7t kh\u00f4ng song song<\/li>\n\n\n\n<li>Chi\u1ec1u cao linh ki\u1ec7n thay \u0111\u1ed5i nhi\u1ec1u h\u01a1n d\u1ef1 ki\u1ebfn<\/li>\n\n\n\n<li>Di\u1ec7n t\u00edch mi\u1ebfng \u0111\u1ec7m qu\u00e1 l\u1edbn so v\u1edbi \u00e1p l\u1ef1c hi\u1ec7n c\u00f3<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebfu l\u1ef1c n\u00e9n l\u00e0 l\u00fd do ph\u1ed5 bi\u1ebfn khi\u1ebfn mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao (W\/mK) ho\u1ea1t \u0111\u1ed9ng k\u00e9m hi\u1ec7u qu\u1ea3 trong c\u00e1c thi\u1ebft b\u1ecb th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110i\u1ec1u g\u00ec x\u1ea3y ra khi n\u00e9n qu\u00e1 m\u1ee9c?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"906\" height=\"556\" src=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-3.png\" alt=\"\u0110i\u1ec1u g\u00ec x\u1ea3y ra khi n\u00e9n qu\u00e1 m\u1ee9c?\" class=\"wp-image-1409\" srcset=\"https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-3.png 906w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-3-300x184.png 300w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-3-768x471.png 768w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-3-18x12.png 18w, https:\/\/haktak.com\/wp-content\/uploads\/2026\/03\/image-3-600x368.png 600w\" sizes=\"(max-width: 906px) 100vw, 906px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e9n qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n ti\u1ebfp x\u00fac trong ng\u1eafn h\u1ea1n, nh\u01b0ng n\u00f3 t\u1ea1o ra c\u00e1c r\u1ee7i ro v\u1ec1 c\u01a1 h\u1ecdc v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tri\u1ec7u ch\u1ee9ng c\u1ee7a vi\u1ec7c n\u00e9n qu\u00e1 m\u1ee9c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c d\u1ea5u hi\u1ec7u c\u00f3 th\u1ec3 bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>U\u1ed1n cong PCB<\/li>\n\n\n\n<li>N\u1ee9t linh ki\u1ec7n<\/li>\n\n\n\n<li>\u1ee8ng su\u1ea5t m\u1ed1i h\u00e0n<\/li>\n\n\n\n<li>Bi\u1ebfn d\u1ea1ng v\u1ecf nh\u00e0<\/li>\n\n\n\n<li>\u0110\u00f9n \u0111\u1ec7m<\/li>\n\n\n\n<li>Bong pad<\/li>\n\n\n\n<li>L\u1ef1c l\u1eafp r\u00e1p qu\u00e1 m\u1ee9c<\/li>\n\n\n\n<li>\u1ee8ng su\u1ea5t \u1ed1c v\u00edt ho\u1eb7c k\u1eb9p<\/li>\n\n\n\n<li>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec7n m\u00f4i gi\u1ea3m<\/li>\n\n\n\n<li>\u0110\u1ed9 bi\u1ebfn d\u1ea1ng n\u00e9n sau khi l\u00e3o h\u00f3a<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c n\u00e9n qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 \u0111\u1eb7c bi\u1ec7t nguy hi\u1ec3m khi mi\u1ebfng \u0111\u1ec7m d\u00e0y, c\u1ee9ng ho\u1eb7c \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean c\u00e1c linh ki\u1ec7n d\u1ec5 v\u1ee1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nguy\u00ean nh\u00e2n x\u1ea3y ra t\u00ecnh tr\u1ea1ng n\u00e9n qu\u00e1 m\u1ee9c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e9n qu\u00e1 m\u1ee9c th\u01b0\u1eddng x\u1ea3y ra khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mi\u1ebfng \u0111\u1ec7m qu\u00e1 d\u00e0y so v\u1edbi kho\u1ea3ng h\u1edf t\u1ed1i thi\u1ec3u<\/li>\n\n\n\n<li>Dung sai t\u00edch l\u0169y ch\u01b0a \u0111\u01b0\u1ee3c xem x\u00e9t<\/li>\n\n\n\n<li>L\u1ef1c si\u1ebft \u1ed1c qu\u00e1 cao<\/li>\n\n\n\n<li>\u0110\u1ed9 c\u1ee9ng c\u1ee7a t\u1ea5m \u0111\u1ec7m qu\u00e1 cao<\/li>\n\n\n\n<li>Thi\u1ebfu c\u00e1c ch\u1ed1t c\u01a1 h\u1ecdc<\/li>\n\n\n\n<li>C\u1ee5m l\u1eafp r\u00e1p c\u1ed1 g\u1eafng s\u1eed d\u1ee5ng mi\u1ebfng \u0111\u1ec7m l\u00e0m kho\u1ea3ng \u0111\u1ec7m k\u1ebft c\u1ea5u<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ebft qu\u1ea3 tho\u1ea1t \u0111\u1ea7u c\u00f3 th\u1ec3 tr\u00f4ng \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn, nh\u01b0ng \u0111\u1ed9 tin c\u1eady l\u00e2u d\u00e0i c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ef7 l\u1ec7 n\u00e9n v\u00e0 Sai s\u1ed1 khe h\u1edf<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 n\u00ean t\u00ednh to\u00e1n t\u1ef7 s\u1ed1 n\u00e9n \u1edf ba \u0111i\u1ec1u ki\u1ec7n khe h\u1edf:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u<\/li>\n\n\n\n<li>Kho\u1ea3ng c\u00e1ch danh ngh\u0129a<\/li>\n\n\n\n<li>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f9ng m\u1ed9t t\u1ea5m \u0111\u1ec7m c\u00f3 th\u1ec3 b\u1ecb n\u00e9n qu\u00e1 m\u1ee9c \u1edf khe h\u1edf t\u1ed1i thi\u1ec3u v\u00e0 n\u00e9n kh\u00f4ng \u0111\u1ee7 \u1edf khe h\u1edf t\u1ed1i \u0111a.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00ednh to\u00e1n v\u00ed d\u1ee5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3 s\u1eed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 d\u00e0y mi\u1ebfng \u0111\u1ec7m: 2.0 mm<\/li>\n\n\n\n<li>Kho\u1ea3ng h\u1edf t\u1ed1i thi\u1ec3u: 1,3 mm<\/li>\n\n\n\n<li>Khe h\u1edf danh \u0111\u1ecbnh: 1,5 mm<\/li>\n\n\n\n<li>Khe h\u1edf t\u1ed1i \u0111a: 1,8 mm<\/li>\n<\/ul>\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\">\u0110i\u1ec1u ki\u1ec7n kho\u1ea3ng tr\u1ed1ng<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0110\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng<\/td><td class=\"has-text-align-center\" data-align=\"center\">T\u1ef7 l\u1ec7 n\u00e9n<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u1ee7i ro<\/td><\/tr><tr><td>Kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u<\/td><td>1,3 mm<\/td><td>35%<\/td><td>C\u00f3 th\u1ec3 b\u1ecb n\u00e9n qu\u00e1 m\u1ee9c<\/td><\/tr><tr><td>Kho\u1ea3ng c\u00e1ch danh ngh\u0129a<\/td><td>1,5 mm<\/td><td>25%<\/td><td>C\u00f3 kh\u1ea3 n\u0103ng ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c n\u1ebfu \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb<\/td><\/tr><tr><td>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/td><td>1,8 mm<\/td><td>10%<\/td><td>C\u00f3 th\u1ec3 th\u1ea5p t\u00f9y thu\u1ed9c v\u00e0o mi\u1ebfng \u0111\u1ec7m<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng n\u00e0y cho th\u1ea5y l\u00fd do t\u1ea1i sao vi\u1ec7c ch\u1ec9 ch\u1ecdn m\u1ed9t t\u1ea5m \u0111\u1ec7m d\u1ef1a tr\u00ean kho\u1ea3ng h\u1edf danh \u0111\u1ecbnh c\u00f3 th\u1ec3 r\u1ee7i ro. T\u1ea5m \u0111\u1ec7m ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng trong to\u00e0n b\u1ed9 d\u1ea3i dung sai.<\/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-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 ph\u01b0\u01a1ng ph\u00e1p l\u1ef1a ch\u1ecdn \u0111\u1ed9 d\u00e0y th\u1ef1c t\u1ebf d\u1ef1a tr\u00ean d\u1ea3i khe h\u1edf v\u00e0 \u0111\u1ed9 n\u00e9n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ef7 l\u1ec7 n\u00e9n v\u00e0 chi\u1ec1u d\u00e0y \u0111\u01b0\u1eddng keo<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 d\u00e0y \u0111\u01b0\u1eddng d\u00ednh, hay BLT, l\u00e0 \u0111\u1ed9 d\u00e0y n\u00e9n cu\u1ed1i c\u00f9ng c\u1ee7a t\u1ea5m t\u1ea3n nhi\u1ec7t. N\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn nhi\u1ec7t tr\u1edf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi \u0111\u01b0\u1eddng truy\u1ec1n nhi\u1ec7t \u0111\u01a1n gi\u1ea3n h\u00f3a:<\/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> \u0111\u1ed9 d\u00e0y \u0111\u01b0\u1eddng li\u00ean k\u1ebft 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\">Khi \u0111\u1ed9 n\u00e9n t\u0103ng l\u00ean, \u0111\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng gi\u1ea3m xu\u1ed1ng. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111i\u1ec7n tr\u1edf nhi\u1ec7t t\u1ed5ng th\u1ec3. Tuy nhi\u00ean, \u0111\u1ed9 n\u00e9n c\u0169ng c\u1ea7n c\u1ea3i thi\u1ec7n \u0111\u1ed9 ti\u1ebfp x\u00fac v\u00e0 tr\u00e1nh g\u00e2y h\u01b0 h\u1ecfng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t t\u1ed1t nh\u1ea5t \u0111\u1ebfn t\u1eeb m\u1ed9t mi\u1ebfng \u0111\u1ec7m v\u1eeba \u0111\u1ee7 n\u00e9n \u0111\u1ec3 t\u1ea1o ti\u1ebfp x\u00fac ho\u00e0n to\u00e0n v\u00e0 \u0111\u1ee7 m\u1ecfng \u0111\u1ec3 gi\u1ea3m \u0111i\u1ec7n tr\u1edf, \u0111\u1ed3ng th\u1eddi v\u1eabn \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft 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 l\u00fd do t\u1ea1i sao BLT l\u00e0 m\u1ed9t trong nh\u1eefng bi\u1ebfn quan tr\u1ecdng nh\u1ea5t trong vi\u1ec7c l\u1ef1a ch\u1ecdn TIM.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ef7 l\u1ec7 n\u00e9n v\u00e0 tr\u1edf kh\u00e1ng nhi\u1ec7t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u1edf kh\u00e1ng nhi\u1ec7t th\u01b0\u1eddng h\u1eefu \u00edch h\u01a1n \u0111\u1ed9 d\u1eabn nhi\u1ec7t khi \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t c\u1ee7a t\u1ea5m t\u1ea3n nhi\u1ec7t. N\u00f3 ph\u1ea3n \u00e1nh b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac th\u1ef1c t\u1ebf d\u01b0\u1edbi \u00e1p su\u1ea5t v\u00e0 \u0111\u1ed9 d\u00e0y x\u00e1c \u0111\u1ecbnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u0111\u1ed9 n\u00e9n t\u0103ng l\u00ean, tr\u1edf kh\u00e1ng nhi\u1ec7t th\u01b0\u1eddng gi\u1ea3m xu\u1ed1ng v\u00ec:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ea3i thi\u1ec7n khu v\u1ef1c ti\u1ebfp x\u00fac<\/li>\n\n\n\n<li>Kho\u1ea3ng h\u1edf kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c gi\u1ea3m b\u1edbt<\/li>\n\n\n\n<li>\u0110\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng gi\u1ea3m<\/li>\n\n\n\n<li>\u0110\u1ed9 \u1ea9m b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, sau khi \u0111\u1ea1t \u0111\u01b0\u1ee3c ti\u1ebfp x\u00fac t\u1ed1t, l\u1ef1c n\u00e9n b\u1ed5 sung c\u00f3 th\u1ec3 ch\u1ec9 mang l\u1ea1i l\u1ee3i \u00edch nhi\u1ec7t nh\u1ecf trong khi l\u00e0m t\u0103ng r\u1ee7i ro c\u01a1 h\u1ecdc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t m\u1ee5c ti\u00eau k\u1ef9 thu\u1eadt th\u1ef1c t\u1ebf:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1eed d\u1ee5ng l\u1ef1c n\u00e9n v\u1eeba \u0111\u1ee7 \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c tr\u1edf kh\u00e1ng nhi\u1ec7t th\u1ea5p \u1ed5n \u0111\u1ecbnh, nh\u01b0ng tr\u00e1nh n\u00e9n qu\u00e1 m\u1ee9c v\u1ed1n kh\u00f4ng gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng l\u00e0m m\u00e1t.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/store.astm.org\/d5470-17.html\" rel=\"nofollow noopener\" target=\"_blank\">ASTM D5470<\/a> th\u01b0\u1eddng \u0111\u01b0\u1ee3c tham kh\u1ea3o cho c\u00e1c t\u00ednh ch\u1ea5t truy\u1ec1n nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n d\u1eabn nhi\u1ec7t v\u00e0 c\u00f3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c ki\u1ec3m tra tr\u1edf kh\u00e1ng nhi\u1ec7t v\u00e0 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n bi\u1ec3u ki\u1ebfn c\u1ee7a TIM.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft c\u1ee7a HakTak <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> gi\u1ea3i th\u00edch t\u1ea1i sao tr\u1edf kh\u00e1ng nhi\u1ec7t th\u01b0\u1eddng h\u1eefu \u00edch h\u01a1n ch\u1ec9 s\u1ed1 W\/mK \u0111\u01a1n thu\u1ea7n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ef7 l\u1ec7 n\u00e9n v\u00e0 \u0110\u1ed9 c\u1ee9ng c\u1ee7a T\u1ea5m t\u1ea3n nhi\u1ec7t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 c\u1ee9ng c\u1ee7a mi\u1ebfng t\u1ea3n nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng m\u1ea1nh m\u1ebd \u0111\u1ebfn l\u1ef1c n\u00e9n c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t t\u1ef7 l\u1ec7 n\u00e9n nh\u1ea5t \u0111\u1ecbnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t t\u1ea5m \u0111\u1ec7m m\u1ec1m c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ed9 n\u00e9n 20% d\u01b0\u1edbi \u00e1p l\u1ef1c th\u1ea5p. M\u1ed9t t\u1ea5m \u0111\u1ec7m c\u1ee9ng h\u01a1n c\u00f3 th\u1ec3 c\u1ea7n l\u1ef1c l\u1edbn h\u01a1n nhi\u1ec1u \u0111\u1ec3 \u0111\u1ea1t c\u00f9ng m\u1ee9c \u0111\u1ed9 n\u00e9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 c\u1ee9ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng m\u00e1y \u0111o \u0111\u1ed9 c\u1ee9ng ho\u1eb7c c\u00e1c thang \u0111o Shore. <a href=\"https:\/\/store.astm.org\/d2240-15r21.html\" rel=\"nofollow noopener\" target=\"_blank\">ASTM D2240<\/a> l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u tham kh\u1ea3o quan tr\u1ecdng v\u1ec1 \u0111\u1ed9 c\u1ee9ng durometer c\u1ee7a cao su. Ti\u00eau chu\u1ea9n n\u00e0y gi\u1ea3i th\u00edch r\u1eb1ng \u0111\u1ed9 c\u1ee9ng v\u1ebft l\u00f5m ph\u1ee5 thu\u1ed9c v\u00e0o h\u00e0nh vi c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m, \u0111\u1ed3ng th\u1eddi c\u00e1c lo\u1ea1i durometer kh\u00e1c nhau kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f3 th\u1ec3 thay th\u1ebf tr\u1ef1c ti\u1ebfp cho nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Mi\u1ebfng t\u1ea3n nhi\u1ec7t m\u1ec1m<\/h3>\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>\u00c1p su\u1ea5t b\u1ecb h\u1ea1n ch\u1ebf<\/li>\n\n\n\n<li>C\u00e1c linh ki\u1ec7n r\u1ea5t d\u1ec5 v\u1ee1<\/li>\n\n\n\n<li>C\u00e1c b\u1ec1 m\u1eb7t kh\u00f4ng b\u1eb1ng ph\u1eb3ng<\/li>\n\n\n\n<li>Ph\u1ea3i gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a vi\u1ec7c u\u1ed1n cong b\u1ea3ng m\u1ea1ch in (PCB)<\/li>\n\n\n\n<li>T\u1ed3n t\u1ea1i nhi\u1ec1u chi\u1ec1u cao th\u00e0nh ph\u1ea7n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c mi\u1ebfng \u0111\u1ec7m m\u1ec1m c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 n\u00e9n \u0111\u1ee7 d\u1ec5 d\u00e0ng h\u01a1n, nh\u01b0ng ch\u00fang c\u0169ng c\u00f3 th\u1ec3 kh\u00f3 x\u1eed l\u00fd h\u01a1n ho\u1eb7c d\u1ec5 b\u1ecb bi\u1ebfn d\u1ea1ng h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea5m t\u1ea3n nhi\u1ec7t c\u1ee9ng<\/h3>\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>\u0110\u1ed9 dung sai khe h\u1edf \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/li>\n\n\n\n<li>C\u00f3 \u00e1p su\u1ea5t l\u1eafp r\u00e1p<\/li>\n\n\n\n<li>Vi\u1ec7c x\u1eed l\u00fd b\u1ebf khu\u00f4n r\u1ea5t quan tr\u1ecdng<\/li>\n\n\n\n<li>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc l\u00e0 quan tr\u1ecdng<\/li>\n\n\n\n<li>Vi\u1ec7c l\u00e0m l\u1ea1i c\u1ea7n ph\u1ea3i g\u1ecdn g\u00e0ng h\u01a1n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng \u0111\u1ec7m c\u1ee9ng c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t, nh\u01b0ng ch\u1ec9 khi b\u1ed9 ph\u1eadn l\u1eafp r\u00e1p c\u00f3 th\u1ec3 n\u00e9n ch\u00fang \u0111\u1ee7 \u0111\u1ec3 t\u1ea1o ti\u1ebfp x\u00fac ho\u00e0n to\u00e0n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft 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 s\u1ef1 so s\u00e1nh \u0111\u1ea7y \u0111\u1ee7 h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ef7 l\u1ec7 n\u00e9n v\u00e0 C\u00e1ch \u0111i\u1ec7n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u t\u1ea5m t\u1ea3n nhi\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n. Trong \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t, t\u1ea5m t\u1ea3n nhi\u1ec7t c\u00f3 th\u1ec3 c\u1ea7n truy\u1ec1n nhi\u1ec7t \u0111\u1ed3ng th\u1eddi ng\u0103n ch\u1eb7n d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua gi\u1eefa m\u1ed9t linh ki\u1ec7n v\u00e0 m\u1ed9t b\u1ed9 t\u1ea3n nhi\u1ec7t ho\u1eb7c v\u1ecf b\u1eb1ng kim lo\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 n\u00e9n l\u00e0m thay \u0111\u1ed5i \u0111\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng, v\u00e0 \u0111\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kho\u1ea3ng c\u00e1ch \u0111i\u1ec7n m\u00f4i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu m\u1ed9t t\u1ea5m \u0111\u1ec7m b\u1ecb n\u00e9n qu\u00e1 m\u1ee9c, \u0111\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng c\u00f3 th\u1ec3 th\u1ea5p h\u01a1n d\u1ef1 ki\u1ebfn. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m bi\u00ean \u0111\u1ed9 c\u00e1ch \u0111i\u1ec7n. N\u1ebfu t\u1ea5m \u0111\u1ec7m b\u1ecb n\u00e9n ch\u01b0a \u0111\u1ee7, ti\u1ebfp x\u00fac nhi\u1ec7t c\u00f3 th\u1ec3 k\u00e9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 n\u00ean ki\u1ec3m tra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 b\u1ec1n \u0111i\u1ec7n \u0111i\u1ec7n m\u00f4i<\/li>\n\n\n\n<li>\u0110i\u1ec7n \u00e1p \u0111\u00e1nh th\u1ee7ng<\/li>\n\n\n\n<li>\u0110\u1ed9 d\u00e0y n\u00e9n cu\u1ed1i c\u00f9ng<\/li>\n\n\n\n<li>S\u1ef1 n\u00e9n sau khi l\u00e3o h\u00f3a<\/li>\n\n\n\n<li>Ki\u1ec3m tra \u0111i\u1ec7n sau khi l\u1eafp r\u00e1p<\/li>\n\n\n\n<li>Ki\u1ec3m tra \u0111i\u1ec7n sau khi chu k\u1ef3 nhi\u1ec7t<\/li>\n<\/ul>\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> Gi\u1ea3i th\u00edch s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i gi\u1eefa nhi\u1ec7t v\u00e0 \u0111i\u1ec7n n\u00e0y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Bao nhi\u00eau n\u00e9n l\u00e0 \u0111\u1ee7 theo \u1ee9ng d\u1ee5ng?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y cung c\u1ea5p h\u01b0\u1edbng d\u1eabn th\u1ef1c t\u1ebf. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ph\u1ed5 bi\u1ebfn. C\u00e1c gi\u00e1 tr\u1ecb cu\u1ed1i c\u00f9ng ph\u1ea3i tu\u00e2n theo khuy\u1ebfn ngh\u1ecb c\u1ee7a nh\u00e0 cung c\u1ea5p v\u00e0 th\u1eed nghi\u1ec7m s\u1ea3n ph\u1ea9m.<\/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\">\u1ee8ng d\u1ee5ng<\/td><td class=\"has-text-align-center\" data-align=\"center\">M\u1ed1i quan t\u00e2m thi\u1ebft k\u1ebf \u0111i\u1ec3n h\u00ecnh<\/td><td class=\"has-text-align-center\" data-align=\"center\">Logic m\u1ee5c ti\u00eau n\u00e9n<\/td><\/tr><tr><td>M\u00f4-\u0111un ngu\u1ed3n<\/td><td>Truy\u1ec1n nhi\u1ec7t v\u00e0 c\u00e1ch nhi\u1ec7t<\/td><td>\u0110\u1ee7 di\u1ec7n t\u00edch ti\u1ebfp x\u00fac m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m bi\u00ean \u0111\u1ed9 \u0111i\u1ec7n m\u00f4i<\/td><\/tr><tr><td>MOSFET v\u00e0 IGBT<\/td><td>\u1ee8ng su\u1ea5t linh ki\u1ec7n v\u00e0 c\u00e1ch \u0111i\u1ec7n t\u1ea3n nhi\u1ec7t<\/td><td>N\u00e9n v\u1eeba ph\u1ea3i v\u1edbi m\u00f4-men xo\u1eafn \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/td><\/tr><tr><td>M\u00f4-\u0111un LED<\/td><td>Ti\u1ebfp x\u00fac \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 tu\u1ed5i th\u1ecd cao<\/td><td>\u0110\u1ed9 n\u00e9n \u0111\u1ec1u kh\u1eafp m\u00f4-\u0111un<\/td><\/tr><tr><td>Thi\u1ebft b\u1ecb vi\u1ec5n th\u00f4ng<\/td><td>Chu k\u1ef3 nhi\u1ec7t d\u00e0i h\u1ea1n<\/td><td>\u0110\u1ed9 n\u00e9n \u1ed5n \u0111\u1ecbnh theo th\u1eddi gian<\/td><\/tr><tr><td>\u0110i\u1ec7n t\u1eed xe \u0111i\u1ec7n<\/td><td>Rung \u0111\u1ed9ng v\u00e0 \u0111i\u1ec7n \u00e1p cao<\/td><td>X\u00e1c th\u1ef1c sau khi t\u1ea1o chu k\u1ef3 v\u00e0 s\u1ed1c<\/td><\/tr><tr><td>M\u00e1y ch\u1ee7 AI<\/td><td>Th\u00f4ng l\u01b0\u1ee3ng nhi\u1ec7t cao v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec<\/td><td>Tr\u1edf kh\u00e1ng th\u1ea5p v\u1edbi kh\u1ea3 n\u0103ng l\u1eafp r\u00e1p l\u1eb7p l\u1ea1i<\/td><\/tr><tr><td>H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd pin<\/td><td>Nhi\u1ec1u chi\u1ec1u cao th\u00e0nh ph\u1ea7n<\/td><td>C\u00f3 th\u1ec3 c\u1ea7n \u0111\u1ec7m m\u1ec1m ho\u1eb7c v\u1eadt li\u1ec7u l\u1ea5p \u0111\u1ea7y khe h\u1edf<\/td><\/tr><tr><td>\u0110i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p<\/td><td>V\u1ecf bi\u1ebfn thi\u00ean v\u00e0 tu\u1ed5i th\u1ecd cao<\/td><td>N\u00e9n \u1ed5n \u0111\u1ecbnh trong d\u1ea3i dung sai<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1ch t\u00ednh t\u1ef7 l\u1ec7 n\u00e9n c\u1ee7a mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y s\u1eed d\u1ee5ng quy tr\u00ecnh n\u00e0y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 1: \u0110o kho\u1ea3ng c\u00e1ch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110o l\u01b0\u1eddng ho\u1eb7c t\u00ednh to\u00e1n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u<\/li>\n\n\n\n<li>Kho\u1ea3ng c\u00e1ch danh ngh\u0129a<\/li>\n\n\n\n<li>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Bao g\u1ed3m dung sai c\u1ee7a linh ki\u1ec7n, bo m\u1ea1ch in (PCB), m\u1ed1i h\u00e0n, v\u1ecf m\u00e1y v\u00e0 b\u1ed9 t\u1ea3n nhi\u1ec7t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 2: Ch\u1ecdn \u0111\u1ed9 d\u00e0y mi\u1ebfng \u0111\u1ec7m \u0111\u1ec1 xu\u1ea5t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng \u0111\u1ec7m ph\u1ea3i \u0111\u1ee7 d\u00e0y \u0111\u1ec3 ti\u1ebfp x\u00fac v\u1edbi c\u1ea3 hai b\u1ec1 m\u1eb7t \u1edf kho\u1ea3ng c\u00e1ch l\u1edbn nh\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 3: T\u00ednh \u0111\u1ed9 n\u00e9n t\u1ea1i m\u1ed7i khe h\u1edf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ef7 l\u1ec7 n\u00e9n = (<\/strong><strong>t\u1ea5m \u0111\u1ec7m<\/strong><strong> (\u0111\u1ed9 d\u00e0y \u2013 kho\u1ea3ng h\u1edf) \/ \u0111\u1ed9 d\u00e0y \u0111\u1ec7m \u00d7 100%<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y gi\u1ea3 \u0111\u1ecbnh kho\u1ea3ng h\u1edf tr\u1edf th\u00e0nh \u0111\u1ed9 d\u00e0y c\u1ee7a t\u1ea5m \u0111\u1ec7m cu\u1ed1i c\u00f9ng sau khi l\u1eafp r\u00e1p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 4: So s\u00e1nh v\u1edbi Kho\u1ea3ng Khuy\u1ebfn ngh\u1ecb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ec3m tra xem vi\u1ec7c n\u00e9n c\u00f3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c kh\u00f4ng t\u1ea1i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u<\/li>\n\n\n\n<li>Kho\u1ea3ng c\u00e1ch danh ngh\u0129a<\/li>\n\n\n\n<li>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 5: Ki\u1ec3m tra L\u1ef1c v\u00e0 \u1ee8ng su\u1ea5t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t mi\u1ebfng \u0111\u1ec7m c\u00f3 th\u1ec3 v\u1eeba v\u1eb7n v\u1ec1 m\u1eb7t to\u00e1n h\u1ecdc, nh\u01b0ng v\u1eabn \u0111\u00f2i h\u1ecfi l\u1ef1c qu\u00e1 l\u1edbn. H\u00e3y xem x\u00e9t d\u1eef li\u1ec7u \u0111\u1ed9 n\u00e9n-\u0111\u1ed9 bi\u1ebfn d\u1ea1ng v\u00e0 th\u1eed nghi\u1ec7m c\u1ee5m l\u1eafp r\u00e1p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 6: X\u00e1c th\u1ef1c hi\u1ec7u su\u1ea5t nhi\u1ec7t v\u00e0 c\u01a1 h\u1ecdc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110o nhi\u1ec7t \u0111\u1ed9 linh ki\u1ec7n, tr\u1edf kh\u00e1ng nhi\u1ec7t, \u0111\u1ed9 bi\u1ebfn d\u1ea1ng c\u1ee7a bo m\u1ea1ch v\u00e0 \u0111\u1ed9 tin c\u1eady sau khi chu k\u1ef3 nhi\u1ec7t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00ed d\u1ee5: L\u1ef1a ch\u1ecdn gi\u1eefa hai \u0111\u1ed9 d\u00e0y mi\u1ebfng l\u00f3t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3 s\u1eed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kho\u1ea3ng h\u1edf: 1,1 mm \u0111\u1ebfn 1,5 mm<\/li>\n\n\n\n<li>\u1ee8ng vi\u00ean A: Mi\u1ebfng \u0111\u1ec7m 1,5 mm<\/li>\n\n\n\n<li>\u1ee8ng vi\u00ean B: Mi\u1ebfng \u0111\u1ec7m 2,0 mm<\/li>\n<\/ul>\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\">\u1ee8ng vi\u00ean<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0110\u1ed9 n\u00e9n \u1edf khe h\u1edf 1.1 mm<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u00e9n \u1edf khe h\u1edf 1,5 mm<\/td><td class=\"has-text-align-center\" data-align=\"center\">Gi\u1ea3i th\u00edch<\/td><\/tr><tr><td>Mi\u1ebfng \u0111\u1ec7m 1,5 mm<\/td><td>27%<\/td><td>0%<\/td><td>Kho\u1ea3ng h\u1edf t\u1ed1i thi\u1ec3u t\u1ed1t, kh\u00f4ng n\u00e9n \u1edf kho\u1ea3ng h\u1edf t\u1ed1i \u0111a<\/td><\/tr><tr><td>Mi\u1ebfng \u0111\u1ec7m 2,0 mm<\/td><td>45%<\/td><td>25%<\/td><td>T\u1ed1t \u1edf kho\u1ea3ng h\u1edf t\u1ed1i \u0111a, c\u00f3 th\u1ec3 b\u1ecb n\u00e9n qu\u00e1 m\u1ee9c \u1edf kho\u1ea3ng h\u1edf t\u1ed1i thi\u1ec3u<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u00f3 t\u00f9y ch\u1ecdn n\u00e0o t\u1ef1 \u0111\u1ed9ng ho\u00e0n h\u1ea3o c\u1ea3. Mi\u1ebfng \u0111\u1ec7m m\u1ec1m 2,0 mm c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng n\u1ebfu c\u1ee5m l\u1eafp r\u00e1p ch\u1ecbu \u0111\u01b0\u1ee3c \u0111\u1ed9 n\u00e9n 45%. Mi\u1ebfng \u0111\u1ec7m 1,5 mm c\u00f3 th\u1ec3 h\u1ecfng \u1edf khe h\u1edf t\u1ed1i \u0111a. \u0110\u1ed9 d\u00e0y kh\u00e1c, c\u00f4ng th\u1ee9c m\u1ec1m h\u01a1n ho\u1eb7c keo t\u1ea3n nhi\u1ec7t c\u00f3 th\u1ec3 t\u1ed1t h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao t\u1ef7 l\u1ec7 n\u00e9n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 c\u00f9ng v\u1edbi l\u1ef1c, \u0111\u1ed9 c\u1ee9ng v\u00e0 dung sai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110\u1ed9 bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n (Compression Set) v\u00e0 Hi\u1ec7u su\u1ea5t d\u00e0i h\u1ea1n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n l\u00e0 s\u1ef1 bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n v\u1eabn c\u00f2n l\u1ea1i sau khi m\u1ed9t v\u1eadt li\u1ec7u b\u1ecb n\u00e9n trong m\u1ed9t kho\u1ea3ng th\u1eddi gian r\u1ed3i \u0111\u01b0\u1ee3c th\u1ea3 ra. \u0110\u1ed1i v\u1edbi c\u00e1c t\u1ea5m t\u1ea3n nhi\u1ec7t, \u0111\u1ed9 bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n r\u1ea5t quan tr\u1ecdng v\u00ec t\u1ea5m t\u1ea3n nhi\u1ec7t ph\u1ea3i duy tr\u00ec ti\u1ebfp x\u00fac trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 n\u00e9n cao c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1ea5t kh\u1ea3 n\u0103ng h\u1ed3i ph\u1ee5c<\/li>\n\n\n\n<li>Gi\u1ea3m \u00e1p su\u1ea5t ti\u1ebfp x\u00fac<\/li>\n\n\n\n<li>\u0110i\u1ec7n tr\u1edf nhi\u1ec7t cao h\u01a1n<\/li>\n\n\n\n<li>H\u00e0nh vi l\u00e0m l\u1ea1i k\u00e9m hi\u1ec7u qu\u1ea3<\/li>\n\n\n\n<li>C\u00e1c \u0111i\u1ec3m n\u00f3ng l\u00e2u d\u00e0i<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Chu k\u1ef3 nhi\u1ec7t v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 bi\u1ebfn d\u1ea1ng n\u00e9n v\u0129nh vi\u1ec5n. M\u1ed9t t\u1ea5m \u0111\u1ec7m ho\u1ea1t \u0111\u1ed9ng t\u1ed1t khi l\u1eafp r\u00e1p ban \u0111\u1ea7u c\u00f3 th\u1ec3 m\u1ea5t kh\u1ea3 n\u0103ng ti\u1ebfp x\u00fac sau nhi\u1ec1u th\u00e1ng ho\u1eb7c nhi\u1ec1u n\u0103m n\u1ebfu kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i \u0111\u1ed9 n\u00e9n c\u1ee7a n\u00f3 k\u00e9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 n\u00ean ki\u1ec3m tra hi\u1ec7u su\u1ea5t nhi\u1ec7t sau khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u00e3o h\u00f3a nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n\n\n\n<li>Chu k\u1ef3 nhi\u1ec7t<\/li>\n\n\n\n<li>Rung \u0111\u1ed9ng<\/li>\n\n\n\n<li>T\u1eaft v\u00e0 b\u1eadt l\u1ea1i ngu\u1ed3n<\/li>\n\n\n\n<li>N\u00e9n d\u00e0i h\u1ea1n<\/li>\n\n\n\n<li>S\u1eeda l\u1ea1i<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Ki\u1ec3m tra t\u1ef7 l\u1ec7 n\u00e9n c\u1ee7a mi\u1ebfng t\u1ea3n nhi\u1ec7t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ef7 l\u1ec7 n\u00e9n n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m tra v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1eafp r\u00e1p th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u00e0i ki\u1ec3m tra h\u1eefu \u00edch bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Th\u1eed nghi\u1ec7m n\u00e9n-\u0111\u1ed9 v\u00f5ng<\/li>\n\n\n\n<li>Ki\u1ec3m tra tr\u1edf kh\u00e1ng nhi\u1ec7t \u1edf c\u00e1c \u00e1p su\u1ea5t kh\u00e1c nhau<\/li>\n\n\n\n<li>\u0110o \u0111\u1ed9 d\u00e0y \u0111\u01b0\u1eddng li\u00ean k\u1ebft cu\u1ed1i c\u00f9ng<\/li>\n\n\n\n<li>Ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 linh ki\u1ec7n<\/li>\n\n\n\n<li>Ki\u1ec3m tra \u0111\u1ed9 bi\u1ebfn d\u1ea1ng n\u00e9n v\u0129nh vi\u1ec5n<\/li>\n\n\n\n<li>Ki\u1ec3m tra \u0111i\u1ec7n m\u00f4i sau khi n\u00e9n<\/li>\n\n\n\n<li>Chu k\u1ef3 nhi\u1ec7t<\/li>\n\n\n\n<li>Th\u1eed nghi\u1ec7m rung \u0111\u1ed9ng<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 ki\u1ec3m tra \u0111\u1ed9 d\u1eabn nhi\u1ec7t v\u00e0 \u0111\u1ed9 khu\u1ebfch t\u00e1n nhi\u1ec7t r\u1ed9ng h\u01a1n \u0111\u1ed1i v\u1edbi c\u00e1c v\u1eadt li\u1ec7u polyme, <a href=\"https:\/\/www.iso.org\/standard\/81836.html\" rel=\"nofollow noopener\" target=\"_blank\">ISO 22007-2<\/a> \u0111\u1ec1 c\u1eadp \u0111\u1ebfn ph\u01b0\u01a1ng ph\u00e1p ngu\u1ed3n nhi\u1ec7t m\u1eb7t ph\u1eb3ng t\u1ea1m th\u1eddi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u d\u1eabn nhi\u1ec7t (TIM), c\u00e1c k\u1ef9 s\u01b0 kh\u00f4ng n\u00ean so s\u00e1nh c\u00e1c gi\u00e1 tr\u1ecb \u0111\u1ed9 d\u1eabn nhi\u1ec7t m\u00e0 kh\u00f4ng bi\u1ebft r\u00f5 \u00e1p su\u1ea5t v\u00e0 \u0111\u1ed9 d\u00e0y. C\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m r\u1ea5t quan tr\u1ecdng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn k\u1ef9 s\u01b0 n\u00ean tr\u00e1nh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sai l\u1ea7m \u0111\u1ea7u ti\u00ean l\u00e0 s\u1eed d\u1ee5ng m\u1ed9t t\u1ef7 l\u1ec7 n\u00e9n c\u1ed1 \u0111\u1ecbnh cho m\u1ecdi mi\u1ebfng \u0111\u1ec7m. C\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau y\u00eau c\u1ea7u c\u00e1c d\u1ea3i kh\u00e1c nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sai l\u1ea7m th\u1ee9 hai l\u00e0 ch\u1ec9 t\u00ednh to\u00e1n \u0111\u1ed9 n\u00e9n \u1edf khe h\u1edf danh \u0111\u1ecbnh. C\u00e1c \u0111i\u1ec1u ki\u1ec7n khe h\u1edf t\u1ed1i thi\u1ec3u v\u00e0 t\u1ed1i \u0111a th\u01b0\u1eddng l\u00e0 n\u01a1i x\u1ea3y ra s\u1ef1 c\u1ed1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sai l\u1ea7m th\u1ee9 ba l\u00e0 ch\u1ecdn m\u1ed9t mi\u1ebfng \u0111\u1ec7m qu\u00e1 d\u00e0y \u201cch\u1ec9 \u0111\u1ec3 cho ch\u1eafc \u0103n.\u201d \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m t\u0103ng nhi\u1ec7t tr\u1edf v\u00e0 g\u00e2y c\u0103ng th\u1eb3ng cho c\u1ee5m l\u1eafp r\u00e1p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sai l\u1ea7m th\u1ee9 t\u01b0 l\u00e0 b\u1ecf qua \u0111\u1ed9 c\u1ee9ng c\u1ee7a \u0111\u1ec7m. \u0110\u1ec7m c\u1ee9ng c\u00f3 th\u1ec3 kh\u00f4ng n\u00e9n \u0111\u1ee7 d\u01b0\u1edbi \u00e1p l\u1ef1c th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sai l\u1ea7m th\u1ee9 n\u0103m l\u00e0 b\u1ecf qua bi\u00ean \u0111\u1ed9 \u0111i\u1ec7n m\u00f4i sau khi n\u00e9n. \u0110\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sai l\u1ea7m th\u1ee9 s\u00e1u l\u00e0 ch\u1ec9 ki\u1ec3m tra hi\u1ec7u su\u1ea5t ban \u0111\u1ea7u. \u0110\u1ed9 bi\u1ebfn d\u1ea1ng n\u00e9n v\u00e0 s\u1ef1 l\u00e3o h\u00f3a c\u00f3 th\u1ec3 thay \u0111\u1ed5i ti\u1ebfp x\u00fac nhi\u1ec7t trong d\u00e0i h\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sai l\u1ea7m th\u1ee9 b\u1ea3y l\u00e0 so s\u00e1nh ch\u1ec9 s\u1ed1 W\/mK m\u00e0 kh\u00f4ng t\u00ednh \u0111\u1ebfn tr\u1edf kh\u00e1ng nhi\u1ec7t. M\u1ed9t t\u1ea5m \u0111\u1ec7m c\u00f3 W\/mK cao v\u1eabn c\u00f3 th\u1ec3 mang l\u1ea1i hi\u1ec7u su\u1ea5t k\u00e9m n\u1ebfu n\u00f3 b\u1ecb n\u00e9n qu\u00e1 \u00edt ho\u1eb7c qu\u00e1 d\u00e0y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">G\u00f3c nh\u00ecn HakTak<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i HakTak, t\u1ef7 l\u1ec7 n\u00e9n c\u1ee7a t\u1ea3n nhi\u1ec7t d\u1ea1ng mi\u1ebfng \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t bi\u1ebfn s\u1ed1 thi\u1ebft k\u1ebf ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t quy t\u1eafc c\u1ed1 \u0111\u1ecbnh. Ph\u1ea1m vi n\u00e9n ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u c\u1ee7a mi\u1ebfng t\u1ea3n nhi\u1ec7t v\u00e0 qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ch\u00ednh x\u00e1c, c\u00e1c k\u1ef9 s\u01b0 n\u00ean cung c\u1ea5p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kho\u1ea3ng c\u00e1ch g\u1ed1c<\/li>\n\n\n\n<li>Khe h\u1edf t\u1ed1i thi\u1ec3u, danh \u0111\u1ecbnh v\u00e0 t\u1ed1i \u0111a<\/li>\n\n\n\n<li>Khu v\u1ef1c li\u00ean h\u1ec7<\/li>\n\n\n\n<li>C\u00f4ng su\u1ea5t ngu\u1ed3n nhi\u1ec7t<\/li>\n\n\n\n<li>Tr\u1edf kh\u00e1ng nhi\u1ec7t y\u00eau c\u1ea7u ho\u1eb7c m\u1ee5c ti\u00eau nhi\u1ec7t \u0111\u1ed9<\/li>\n\n\n\n<li>\u00c1p su\u1ea5t kh\u1ea3 d\u1ee5ng ho\u1eb7c l\u1ef1c si\u1ebft \u1ed1c<\/li>\n\n\n\n<li>T\u00ednh d\u1ec5 v\u1ee1 c\u1ee7a linh ki\u1ec7n<\/li>\n\n\n\n<li>\u0110\u1ed9 c\u1ee9ng PCB<\/li>\n\n\n\n<li>Nhu c\u1ea7u c\u00e1ch \u0111i\u1ec7n<\/li>\n\n\n\n<li>D\u1ea3i nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/li>\n\n\n\n<li>\u0110i\u1ec1u ki\u1ec7n chu k\u1ef3 rung \u0111\u1ed9ng v\u00e0 nhi\u1ec7t \u0111\u1ed9<\/li>\n\n\n\n<li>Th\u1eddi gian s\u1eed d\u1ee5ng d\u1ef1 ki\u1ebfn c\u1ee7a s\u1ea3n ph\u1ea9m<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi th\u00f4ng tin n\u00e0y, nh\u00e0 cung c\u1ea5p c\u00f3 th\u1ec3 \u0111\u1ec1 xu\u1ea5t \u0111\u1ed9 d\u00e0y, \u0111\u1ed9 c\u1ee9ng, c\u1ea5p \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n, kho\u1ea3ng n\u00e9n v\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u c\u1ee7a \u0111\u1ec7m m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u1ed9 n\u00e9n t\u1ed1i \u0111a. M\u1ee5c ti\u00eau l\u00e0 ti\u1ebfp x\u00fac \u1ed5n \u0111\u1ecbnh, \u0111i\u1ec7n tr\u1edf nhi\u1ec7t th\u1ea5p, t\u1ea3i tr\u1ecdng c\u01a1 h\u1ecdc an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t l\u00e2u d\u00e0i \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ef7 l\u1ec7 n\u00e9n c\u1ee7a mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t l\u00e0 \u0111\u1ee7 khi mi\u1ebfng \u0111\u1ec7m l\u1ea5p \u0111\u1ea7y ho\u00e0n to\u00e0n kho\u1ea3ng c\u00e1ch v\u00e0 t\u1ea1o ti\u1ebfp x\u00fac \u0111\u00e1ng tin c\u1eady m\u00e0 kh\u00f4ng l\u00e0m qu\u00e1 t\u1ea3i thi\u1ebft k\u1ebf c\u01a1 h\u1ecdc ho\u1eb7c \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e9n qu\u00e1 \u00edt s\u1ebd \u0111\u1ec3 l\u1ea1i kho\u1ea3ng tr\u1ed1ng kh\u00f4ng kh\u00ed v\u00e0 l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf nhi\u1ec7t. N\u00e9n qu\u00e1 nhi\u1ec1u c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u00e1c linh ki\u1ec7n, u\u1ed1n cong bo m\u1ea1ch (PCB), bi\u1ebfn d\u1ea1ng v\u1ecf, l\u00e0m gi\u1ea3m kho\u1ea3ng c\u00e1ch c\u00e1ch \u0111i\u1ec7n (dielectric margin), ho\u1eb7c g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n do n\u00e9n (compression set).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 n\u00ean t\u00ednh to\u00e1n \u0111\u1ed9 n\u00e9n \u1edf c\u00e1c \u0111i\u1ec1u ki\u1ec7n khe h\u1edf t\u1ed1i thi\u1ec3u, danh \u0111\u1ecbnh v\u00e0 t\u1ed1i \u0111a. Sau \u0111\u00f3, h\u1ecd n\u00ean ki\u1ec3m ch\u1ee9ng v\u1eadt li\u1ec7u b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng \u00e1p su\u1ea5t th\u1ef1c t\u1ebf, \u0111\u1ed9 d\u00e0y \u0111\u01b0\u1eddng d\u00e1n cu\u1ed1i c\u00f9ng, tr\u1edf kh\u00e1ng nhi\u1ec7t, c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111i\u1ec7n m\u00f4i v\u00e0 th\u1eed nghi\u1ec7m \u0111\u1ed9 tin c\u1eady.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u00f3 t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m n\u00e9n chung cho m\u1ecdi mi\u1ebfng t\u1ea3n nhi\u1ec7t. T\u1ef7 l\u1ec7 n\u00e9n ph\u00f9 h\u1ee3p l\u00e0 t\u1ef7 l\u1ec7 ho\u1ea1t \u0111\u1ed9ng an to\u00e0n v\u00e0 c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i \u1edf s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng.<\/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\">T\u1ef7 l\u1ec7 n\u00e9n c\u1ee7a t\u1ea3n nhi\u1ec7t d\u1ea1ng t\u1ea5m l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ef7 l\u1ec7 n\u00e9n c\u1ee7a mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t l\u00e0 ph\u1ea7n tr\u0103m gi\u1ea3m \u0111\u1ed9 d\u00e0y c\u1ee7a mi\u1ebfng \u0111\u1ec7m sau khi l\u1eafp r\u00e1p gi\u1eefa ngu\u1ed3n nhi\u1ec7t v\u00e0 b\u1ec1 m\u1eb7t l\u00e0m m\u00e1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ednh t\u1ef7 l\u1ec7 n\u00e9n c\u1ee7a mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c: t\u1ef7 l\u1ec7 n\u00e9n = (\u0111\u1ed9 d\u00e0y mi\u1ebfng \u0111\u1ec7m ban \u0111\u1ea7u \u2013 \u0111\u1ed9 d\u00e0y sau khi n\u00e9n) \/ \u0111\u1ed9 d\u00e0y mi\u1ebfng \u0111\u1ec7m ban \u0111\u1ea7u \u00d7 100%.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 n\u00e9n c\u1ee7a t\u1ea3ng nhi\u1ec7t d\u1ea1ng mi\u1ebfng bao nhi\u00eau l\u00e0 \u0111\u1ee7?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 n\u00e9n \u0111\u1ee7 c\u00f3 ngh\u0129a l\u00e0 mi\u1ebfng \u0111\u1ec7m ti\u1ebfp x\u00fac ho\u00e0n to\u00e0n v\u1edbi c\u1ea3 hai b\u1ec1 m\u1eb7t v\u00e0 l\u00e0m gi\u1ea3m \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac m\u00e0 kh\u00f4ng g\u00e2y ra \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc qu\u00e1 m\u1ee9c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nhi\u1ec1u l\u1ef1c n\u00e9n mi\u1ebfng t\u1ea3n nhi\u1ec7t (thermal pad) h\u01a1n c\u00f3 lu\u00f4n lu\u00f4n t\u1ed1t h\u01a1n kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng. N\u00e9n nhi\u1ec1u h\u01a1n c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n ti\u1ebfp x\u00fac, nh\u01b0ng n\u00e9n qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 l\u00e0m cong bo m\u1ea1ch (PCB), n\u1ee9t linh ki\u1ec7n, bi\u1ebfn d\u1ea1ng v\u1ecf ho\u1eb7c l\u00e0m gi\u1ea3m kho\u1ea3ng c\u00e1ch \u0111i\u1ec7n m\u00f4i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu mi\u1ebfng t\u1ea3n nhi\u1ec7t (thermal pad) kh\u00f4ng b\u1ecb n\u00e9n \u0111\u1ee7 m\u1ee9c?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ebfng \u0111\u1ec7m c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i c\u00e1c khe h\u1edf kh\u00f4ng kh\u00ed, l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac v\u00e0 nhi\u1ec7t \u0111\u1ed9 linh ki\u1ec7n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu mi\u1ebfng \u0111\u1ec7m nhi\u1ec7t (thermal pad) b\u1ecb n\u00e9n qu\u00e1 m\u1ee9c?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c n\u00e9n qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 g\u00e2y ra \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc, \u0111\u00f9n t\u1ea5m \u0111\u1ec7m, bi\u1ebfn d\u1ea1ng n\u00e9n v\u0129nh vi\u1ec5n v\u00e0 gi\u1ea3m bi\u00ean \u0111\u1ed9 c\u00e1ch \u0111i\u1ec7n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 c\u1ee9ng c\u1ee7a mi\u1ebfng t\u1ea3n nhi\u1ec7t (thermal pad) c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u00e9n kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00fang v\u1eady. C\u00e1c mi\u1ebfng \u0111\u1ec7m m\u1ec1m h\u01a1n d\u1ec5 n\u00e9n h\u01a1n, trong khi c\u00e1c mi\u1ebfng \u0111\u1ec7m c\u1ee9ng h\u01a1n \u0111\u00f2i h\u1ecfi nhi\u1ec1u l\u1ef1c h\u01a1n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00f9ng m\u1ed9t t\u1ef7 l\u1ec7 n\u00e9n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 n\u00e9n c\u00f3 n\u00ean \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n ch\u1ec9 \u1edf khe h\u1edf danh \u0111\u1ecbnh hay kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng. C\u00e1c k\u1ef9 s\u01b0 ph\u1ea3i t\u00ednh to\u00e1n \u0111\u1ed9 n\u00e9n \u1edf c\u00e1c \u0111i\u1ec1u ki\u1ec7n khe h\u1edf t\u1ed1i thi\u1ec3u, danh \u0111\u1ecbnh v\u00e0 t\u1ed1i \u0111a.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Vi\u1ec7c n\u00e9n c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed5ng tr\u1edf nhi\u1ec7t kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00fang v\u1eady. Qu\u00e1 tr\u00ecnh n\u00e9n th\u00edch h\u1ee3p th\u01b0\u1eddng l\u00e0m gi\u1ea3m tr\u1edf kh\u00e1ng nhi\u1ec7t b\u1eb1ng c\u00e1ch c\u1ea3i thi\u1ec7n \u0111\u1ed9 ti\u1ebfp x\u00fac v\u00e0 gi\u1ea3m \u0111\u1ed9 d\u00e0y c\u1ee7a l\u1edbp k\u1ebft d\u00ednh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ea1n n\u00ean cung c\u1ea5p d\u1eef li\u1ec7u n\u00e0o \u0111\u1ec3 ch\u1ecdn \u0111\u00fang t\u1ef7 l\u1ec7 n\u00e9n?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cung c\u1ea5p kho\u1ea3ng h\u1edf, m\u1ee5c ti\u00eau \u0111\u1ed9 d\u00e0y mi\u1ebfng \u0111\u1ec7m, di\u1ec7n t\u00edch ti\u1ebfp x\u00fac, gi\u1edbi h\u1ea1n \u00e1p su\u1ea5t, t\u1ea3i tr\u1ecdng nhi\u1ec7t, \u0111\u1ed9 d\u1ec5 v\u1ee1 c\u1ee7a linh ki\u1ec7n, y\u00eau c\u1ea7u c\u00e1ch \u0111i\u1ec7n v\u00e0 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ed9 tin c\u1eady.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Thermal pad compression is enough when the pad fully contacts both surfaces, fills the gap across tolerance variation, reduces contact [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":1451,"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 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