{"id":2395,"date":"2026-09-24T15:08:36","date_gmt":"2026-09-24T15:08:36","guid":{"rendered":"https:\/\/haktak.com\/?p=2395"},"modified":"2026-09-24T15:08:39","modified_gmt":"2026-09-24T15:08:39","slug":"what-is-a-sil-pad-in-ic","status":"publish","type":"post","link":"https:\/\/haktak.com\/vi\/what-is-a-sil-pad-in-ic\/","title":{"rendered":"Sil Pad trong IC l\u00e0 g\u00ec? T\u1ea5m c\u00e1ch \u0111i\u1ec7n t\u1ea3n nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o"},"content":{"rendered":"
\n

Khi m\u1edf m\u1ed9t b\u1ed9 ngu\u1ed3n, b\u1ea1n s\u1ebd th\u1ea5y m\u1ed9t t\u1ea5m m\u1ecfng, h\u01a1i gi\u1ed1ng cao su, n\u1eb1m gi\u1eefa b\u1ed9 \u1ed5n \u00e1p v\u00e0 b\u1ed9 t\u1ea3n nhi\u1ec7t b\u1eb1ng kim lo\u1ea1i. B\u1ed9 \u1ed5n \u00e1p \u0111\u01b0\u1ee3c b\u1eaft v\u00edt ch\u1eb7t. T\u1ea5m n\u00e0y tr\u00f4ng \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn m\u1ee9c g\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u00e1ng k\u1ec3, nh\u01b0ng n\u1ebfu th\u00e1o b\u1ecf, IC c\u00f3 th\u1ec3 n\u00f3ng h\u01a1n, g\u00e2y ch\u1eadp \u0111i\u1ec7n ho\u1eb7c x\u1ea3y ra c\u1ea3 hai t\u00ecnh tr\u1ea1ng.<\/p>\n\n\n\n

\"mi\u1ebfng<\/figure>\n\n\n\n

T\u1ea5m n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ed9t t\u1ea5m \u0111\u1ec7m silicone<\/strong>. \u0110\u00e2y l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u giao di\u1ec7n nhi\u1ec7t \u0111\u01b0\u1ee3c t\u1ea1o h\u00ecnh s\u1eb5n, \u0111\u1eb7t gi\u1eefa m\u1eb7t ngo\u00e0i c\u1ee7a linh ki\u1ec7n \u0111i\u1ec7n t\u1eed d\u1ea1ng v\u1ecf v\u00e0 b\u1ec1 m\u1eb7t t\u1ea3n nhi\u1ec7t. Nhi\u1ec7m v\u1ee5 ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 h\u1ed7 tr\u1ee3 truy\u1ec1n nhi\u1ec7t qua m\u1ed1i ti\u1ebfp x\u00fac. M\u1ed9t lo\u1ea1i c\u00e1ch \u0111i\u1ec7n<\/strong> \u0111\u1ed3ng th\u1eddi ng\u0103n b\u1ec1 m\u1eb7t package \u0111ang mang \u0111i\u1ec7n ti\u1ebfp x\u00fac v\u1edbi b\u1ed9 t\u1ea3n nhi\u1ec7t. \u0110\u00e2y l\u00e0 hai y\u00eau c\u1ea7u ri\u00eang bi\u1ec7t, v\u00e0 v\u1eadt li\u1ec7u c\u1ee5 th\u1ec3 ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u1ea3 hai khi c\u1ea3 hai \u0111\u1ec1u c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n

C\u00f3 m\u1ed9t \u0111i\u1ec3m c\u1ea7n l\u01b0u \u00fd v\u1ec1 t\u00ean g\u1ecdi. BERGQUIST SIL PAD\u00ae<\/strong> l\u00e0 m\u1ed9t d\u00f2ng s\u1ea3n ph\u1ea9m c\u1ee7a Henkel; \u201csil pad\u201d c\u0169ng \u0111\u01b0\u1ee3c d\u00f9ng kh\u00f4ng ch\u00ednh th\u1ee9c \u0111\u1ec3 ch\u1ec9 c\u00e1c t\u1ea5m c\u00e1ch \u0111i\u1ec7n nhi\u1ec7t t\u01b0\u01a1ng t\u1ef1 c\u00f3 n\u1ec1n silicone. V\u00ec v\u1eady, khi ghi ch\u00fa s\u1eeda ch\u1eefa vi\u1ebft \u201cthay sil pad\u201d, \u0111\u1eebng m\u1eb7c \u0111\u1ecbnh r\u1eb1ng m\u1ecdi t\u1ea5m trong danh m\u1ee5c \u0111\u1ec1u c\u00f3 c\u00f9ng th\u00f4ng s\u1ed1 c\u00e1ch \u0111i\u1ec7n. C\u00e2u h\u1ecfi \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 \u0111i\u1ec1u m\u00e0 IC n\u00e0y, \u0111i\u1ec3m l\u1eafp \u0111\u1eb7t n\u00e0y v\u00e0 b\u1ed9 t\u1ea3n nhi\u1ec7t n\u00e0y<\/em> c\u1ea7n.<\/p>\n\n\n\n

Ch\u00ednh x\u00e1c th\u00ec mi\u1ebfng \u0111\u1ec7m silicone trong c\u1ee5m l\u1eafp r\u00e1p IC l\u00e0 g\u00ec?<\/h2>\n\n\n\n

H\u00e3y h\u00ecnh dung c\u1ea5u tr\u00fac x\u1ebfp ch\u1ed3ng khi nh\u00ecn t\u1eeb b\u00ean c\u1ea1nh. C\u00f3 m\u1ed9t v\u1ecf IC, m\u1ed9t t\u1ea5m m\u1ecfng v\u00e0 m\u1ed9t b\u1ed9 t\u1ea3n nhi\u1ec7t b\u1eb1ng kim lo\u1ea1i. T\u1ea5m n\u00e0y ti\u1ebfp x\u00fac v\u1edbi v\u1ecf ho\u1eb7c tai l\u1eafp<\/strong>, ch\u1ee9 kh\u00f4ng ti\u1ebfp x\u00fac v\u1edbi m\u1ea1ch silicon tr\u1ea7n b\u00ean trong. Nhi\u1ec7t sinh ra t\u1ea1i ti\u1ebfp gi\u00e1p b\u00e1n d\u1eabn truy\u1ec1n qua v\u1ecf, \u0111i qua t\u1ea5m n\u00e0y r\u1ed3i v\u00e0o b\u1ed9 t\u1ea3n nhi\u1ec7t.<\/p>\n\n\n\n

T\u1ea1i sao ph\u1ea3i \u0111\u1eb7t th\u00eam v\u1eadt li\u1ec7u g\u00ec gi\u1eefa hai b\u1ec1 m\u1eb7t n\u00e0y? Nh\u1eefng b\u1ec1 m\u1eb7t tr\u00f4ng ph\u1eb3ng v\u1eabn c\u00f3 c\u00e1c \u0111\u1ec9nh v\u00e0 h\u00f5m li ti. Khi \u00e9p v\u1ecf linh ki\u1ec7n tr\u1ef1c ti\u1ebfp v\u00e0o kim lo\u1ea1i tr\u1ea7n, ph\u1ea7n l\u1edbn di\u1ec7n t\u00edch ti\u1ebfp x\u00fac bi\u1ec3u ki\u1ebfn v\u1eabn ch\u1ee9a kh\u00f4ng kh\u00ed. M\u1ed9t mi\u1ebfng \u0111\u1ec7m ph\u00f9 h\u1ee3p s\u1ebd n\u00e9n l\u1ea1i v\u00e0 l\u1ea5p \u0111\u1ea7y m\u1ed9t ph\u1ea7n \u0111\u1ed9 g\u1ed3 gh\u1ec1 \u0111\u00f3. Khi \u1ea5y, nhi\u1ec7t c\u00f3 th\u1ec3 truy\u1ec1n qua ph\u1ea7n l\u1edbn h\u01a1n c\u1ee7a b\u1ec1 m\u1eb7t ti\u1ebfp gi\u00e1p. N\u1ebfu mi\u1ebfng \u0111\u1ec7m c\u00f3 t\u00ednh c\u00e1ch \u0111i\u1ec7n v\u00e0 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u0111\u00fang c\u00e1ch, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 ng\u0103n h\u00ecnh th\u00e0nh \u0111\u01b0\u1eddng d\u1eabn d\u00f2ng \u0111i\u1ec7n gi\u1eefa v\u1ecf linh ki\u1ec7n v\u00e0 b\u1ed9 t\u1ea3n nhi\u1ec7t.<\/p>\n\n\n\n

T\u00ean g\u1ecdi n\u00e0y d\u1ec5 b\u1ecb nh\u1ea7m v\u1edbi hai lo\u1ea1i \u201cpad\u201d kh\u00e1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng quanh chip:<\/p>\n\n\n\n

Thu\u1eadt ng\u1eef b\u1ea1n c\u00f3 th\u1ec3 g\u1eb7p<\/strong><\/th>V\u1ecb tr\u00ed<\/strong><\/th>Ch\u1ee9c n\u0103ng<\/strong><\/th><\/tr>
T\u1ea5m sil pad ri\u00eang bi\u1ec7t ho\u1eb7c t\u1ea5m c\u00e1ch nhi\u1ec7t<\/td>Gi\u1eefa v\u1ecf linh ki\u1ec7n ho\u1eb7c bo m\u1ea1ch v\u1edbi b\u1ed9 t\u1ea3n nhi\u1ec7t, v\u1ecf thi\u1ebft b\u1ecb ho\u1eb7c thanh ray<\/td>C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ti\u1ebfp x\u00fac nhi\u1ec7t; lo\u1ea1i ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 t\u1ea1o c\u00e1ch \u0111i\u1ec7n<\/td><\/tr>
Mi\u1ebfng \u0111\u1ec7m t\u1ea3n nhi\u1ec7t l\u1ed9 ra tr\u00ean v\u1ecf IC<\/td>\u0110\u01b0\u1ee3c t\u00edch h\u1ee3p \u1edf m\u1eb7t d\u01b0\u1edbi c\u1ee7a c\u00e1c v\u1ecf linh ki\u1ec7n nh\u01b0 m\u1ed9t s\u1ed1 QFN<\/td>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c h\u00e0n v\u00e0o land PCB \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh; k\u1ebft n\u1ed1i \u0111i\u1ec7n ph\u1ee5 thu\u1ed9c v\u00e0o linh ki\u1ec7n<\/td><\/tr>
V\u00f9ng pad t\u1ea3n nhi\u1ec7t v\u00e0 c\u00e1c via tr\u00ean PCB<\/td>C\u00e1c pad \u0111\u1ed3ng v\u00e0 l\u1ed7 m\u1ea1 tr\u00ean bo m\u1ea1ch<\/td>Truy\u1ec1n nhi\u1ec7t t\u1eeb package v\u00e0o c\u00e1c l\u1edbp \u0111\u1ed3ng ho\u1eb7c sang m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t kh\u00e1c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Kh\u00f4ng \u0111\u1eb7t m\u1ed9t t\u1ea5m silicone b\u00ean d\u01b0\u1edbi pad l\u1ed9 thi\u00ean c\u1ee7a QFN \u0111\u1ec3 thay th\u1ebf cho m\u1ed1i h\u00e0n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh. H\u00e3y tham kh\u1ea3o h\u01b0\u1edbng d\u1eabn v\u1ec1 ki\u1ec3u b\u1ed1 tr\u00ed land c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t IC. \u0110\u1ed3ng th\u1eddi, kh\u00f4ng \u00e1p m\u1ed9t t\u1ea5m c\u1eaft th\u00f4ng th\u01b0\u1eddng l\u00ean die tr\u1ea7n, tr\u1eeb khi thi\u1ebft k\u1ebf package y\u00eau c\u1ea7u r\u00f5 r\u00e0ng giao di\u1ec7n \u0111\u00f3. Trong ph\u1ea7n l\u1edbn b\u00e0i vi\u1ebft n\u00e0y, \u201csil pad\u201d c\u00f3 ngh\u0129a l\u00e0 m\u1ed9t t\u1ea5m r\u1eddi b\u00ean ngo\u00e0i package<\/strong>.<\/p>\n\n\n\n

\u0110\u1ec3 bi\u1ebft t\u00ean g\u1ecdi v\u00e0 ph\u1ea1m vi c\u00e1c k\u1ebft c\u1ea5u mang th\u01b0\u01a1ng hi\u1ec7u, h\u00e3y xem Henkel\u2019s BERGQUIST SIL PAD\u00ae d\u00f2ng v\u1eadt li\u1ec7u<\/a>. Danh m\u1ee5c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a HAKTAK n\u00e0y<\/em> c\u1ea7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean k\u1ebft c\u1ea5u th\u1ef1c t\u1ebf v\u00e0 d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m, kh\u00f4ng d\u1ef1a tr\u00ean nh\u00e3n hi\u1ec7u c\u1ee7a \u0111\u1ed1i th\u1ee7 c\u1ea1nh tranh.<\/p>\n\n\n\n

\"mi\u1ebfng<\/figure>\n\n\n\n

Theo d\u00f5i \u0111\u01b0\u1eddng truy\u1ec1n nhi\u1ec7t t\u1eeb IC \u0111\u1ebfn ph\u00f2ng<\/h2>\n\n\n\n

Mi\u1ebfng \u0111\u1ec7m ch\u1ec9 l\u00e0 m\u1ed9t \u0111i\u1ec3m d\u1eebng trong m\u1ed9t h\u00e0nh tr\u00ecnh d\u00e0i h\u01a1n. V\u1edbi m\u1ed9t linh ki\u1ec7n c\u00f4ng su\u1ea5t \u0111\u01a1n gi\u1ea3n \u0111\u01b0\u1ee3c g\u1eafn tr\u00ean b\u1ed9 t\u1ea3n nhi\u1ec7t, \u0111\u01b0\u1eddng truy\u1ec1n s\u1ebd nh\u01b0 sau:<\/p>\n\n\n\n

M\u1ed1i n\u1ed1i \u2192 v\u1ecf linh ki\u1ec7n \u2192 giao di\u1ec7n nhi\u1ec7t \u2192 b\u1ed9 t\u1ea3n nhi\u1ec7t \u2192 kh\u00f4ng kh\u00ed xung quanh<\/strong><\/p>\n\n\n\n

C\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng g\u1ecdi \u0111i\u1ec7n tr\u1edf nhi\u1ec7t \u0111\u1ea7u ti\u00ean l\u00e0 t\u1eeb m\u1ed1i n\u1ed1i \u0111\u1ebfn v\u1ecf<\/strong> (R\u03b8JC). Mi\u1ebfng \u0111\u1ec7m v\u00e0 hai \u0111i\u1ec3m ti\u1ebfp x\u00fac c\u1ee7a n\u00f3 g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean t\u1eeb v\u1ecf \u0111\u1ebfn b\u1ed9 t\u1ea3n nhi\u1ec7t<\/strong> (R\u03b8CS). B\u1ed9 t\u1ea3n nhi\u1ec7t v\u00e0 m\u00f4i tr\u01b0\u1eddng xung quanh cung c\u1ea5p t\u1eeb b\u1ed9 t\u1ea3n nhi\u1ec7t \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng<\/strong> \u0110\u1ed1i v\u1edbi m\u1ed9t c\u1ea5u h\u00ecnh l\u00fd t\u01b0\u1edfng h\u00f3a, ch\u1ee7 y\u1ebfu theo m\u1ed9t \u0111\u01b0\u1eddng truy\u1ec1n duy nh\u1ea5t, \u01b0\u1edbc t\u00ednh ban \u0111\u1ea7u l\u00e0:<\/p>\n\n\n\n

Tj \u2248 Ta + P \u00d7 (R\u03b8JC + R\u03b8CS + R\u03b8SA)<\/strong><\/p>\n\n\n\n

Trong \u0111\u00f3 Tj<\/strong> l\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u1ed1i n\u1ed1i, Ta<\/strong> l\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 P<\/strong> l\u00e0 c\u00f4ng su\u1ea5t ti\u00eau t\u00e1n d\u01b0\u1edbi d\u1ea1ng nhi\u1ec7t, t\u00ednh b\u1eb1ng watt. \u0110i\u1ec7n tr\u1edf \u0111\u01b0\u1ee3c t\u00ednh theo K\/W ho\u1eb7c \u00b0C\/W \u0111\u1ed1i v\u1edbi ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9. \u01af\u1edbc t\u00ednh n\u00e0y gi\u1ea3 \u0111\u1ecbnh \u0111\u01b0\u1eddng truy\u1ec1n nhi\u1ec7t nh\u1ea5t qu\u00e1n v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u1ed5n \u0111\u1ecbnh. M\u1ed9t PCB c\u0169ng c\u00f3 th\u1ec3 truy\u1ec1n nhi\u1ec7t ra ngo\u00e0i, v\u00ec v\u1eady c\u00e1c c\u1ee5m l\u1eafp r\u00e1p th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 c\u1ea7n m\u1ed9t m\u00f4 h\u00ecnh chi ti\u1ebft h\u01a1n.<\/p>\n\n\n\n

Gi\u1ea3 s\u1eed m\u1ed9t b\u1ed9 \u1ed5n \u00e1p t\u1ea3n 8 W<\/strong>. N\u1ebfu \u0111i\u1ec7n tr\u1edf giao di\u1ec7n c\u1ee7a c\u1ee5m l\u1eafp r\u00e1p t\u0103ng th\u00eam 0.5 K\/W<\/strong>, v\u00e0 khi m\u1ecdi th\u1ee9 kh\u00e1c gi\u1eef nguy\u00ean, m\u00f4 h\u00ecnh \u0111\u01a1n gi\u1ea3n d\u1ef1 \u0111o\u00e1n m\u1ee9c t\u0103ng nhi\u1ec7t \u0111\u1ed9 t\u1eeb m\u1ed1i n\u1ed1i \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng xung quanh s\u1ebd l\u1edbn h\u01a1n kho\u1ea3ng 4\u00b0C<\/strong> n\u1eefa. \u0110\u00e2y l\u00e0 nh\u1eefng con s\u1ed1 minh h\u1ecda, kh\u00f4ng ph\u1ea3i k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m c\u1ee7a m\u1ed9t s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y v\u00ec sao m\u1ed9t t\u1ea5m \u0111\u1ec7m nh\u1ecf c\u0169ng c\u00f3 th\u1ec3 t\u1ea1o ra kh\u00e1c bi\u1ec7t.<\/p>\n\n\n\n

\u0110i\u1ec1u ng\u01b0\u1ee3c l\u1ea1i c\u0169ng r\u1ea5t quan tr\u1ecdng. N\u1ebfu b\u1ed9 t\u1ea3n nhi\u1ec7t c\u00f3 lu\u1ed3ng kh\u00ed y\u1ebfu v\u00e0 v\u1ed1n \u0111\u00e3 chi\u1ebfm ph\u1ea7n l\u1edbn ng\u00e2n s\u00e1ch nhi\u1ec7t, ch\u1ec9 thay \u0111\u1ed5i t\u1ea5m \u0111\u1ec7m c\u00f3 th\u1ec3 ch\u1ec9 mang l\u1ea1i \u00edt c\u1ea3i thi\u1ec7n. T\u01b0\u01a1ng t\u1ef1, vi\u1ec7c mua t\u1ea5m \u0111\u1ec7m c\u00f3 tr\u1ecb s\u1ed1 W\/m\u00b7K l\u1edbn h\u01a1n s\u1ebd kh\u00f4ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c m\u1ed9t giao di\u1ec7n ch\u1ec9 ti\u1ebfp x\u00fac h\u1edd v\u1edbi m\u1ed9t b\u00ean. Suy cho c\u00f9ng, ti\u1ebfp x\u00fac m\u1edbi l\u00e0 c\u1ed1t l\u00f5i.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1c v\u00ed d\u1ee5 d\u00e0nh ri\u00eang cho MOSFET, bao g\u1ed3m ki\u1ec3u \u0111\u00f3ng g\u00f3i v\u00e0 ng\u00e2n s\u00e1ch nhi\u1ec7t, c\u1ee7a HAKTAK H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn t\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t MOSFET<\/a> \u0111i s\u00e2u h\u01a1n v\u00e0o \u0111\u01b0\u1eddng d\u1eabn \u0111\u00e3 l\u1eafp r\u00e1p \u0111\u00f3.<\/p>\n\n\n\n

\"mi\u1ebfng<\/figure>\n\n\n\n

Khi n\u00e0o mi\u1ebfng \u0111\u1ec7m sil c\u00e1ch ly \u0111i\u1ec7n cho m\u1ed9t IC?<\/h2>\n\n\n\n

H\u00e3y b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch ki\u1ec3m tra b\u1ea3n v\u1ebd v\u1ecf linh ki\u1ec7n v\u00e0 m\u1ea1ch \u0111i\u1ec7n. M\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb ki\u1ec3u TO-220 ho\u1eb7c TO-247 c\u00f3 tab kim lo\u1ea1i \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi m\u1ed9t n\u00fat \u0111i\u1ec7n \u0111ang c\u00f3 \u0111i\u1ec7n \u00e1p. Ch\u1eb3ng h\u1ea1n, tab MOSFET c\u00f4ng su\u1ea5t th\u01b0\u1eddng \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi c\u1ef1c drain, nh\u01b0ng b\u1ea3ng d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 c\u1ee7a thi\u1ebft b\u1ecb m\u1edbi l\u00e0 c\u0103n c\u1ee9 quy\u1ebft \u0111\u1ecbnh<\/strong>. B\u1ed9 \u0111i\u1ec1u ch\u1ec9nh v\u00e0 b\u1ed9 ch\u1ec9nh l\u01b0u c\u00f3 c\u00e1c k\u1ebft n\u1ed1i tab ri\u00eang. N\u1ebfu tab \u0111\u00f3 ch\u1ea1m v\u00e0o b\u1ed9 t\u1ea3n nhi\u1ec7t kim lo\u1ea1i \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t, c\u00f3 th\u1ec3 ch\u1ea1m v\u00e0o ho\u1eb7c d\u00f9ng chung, k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 l\u00e0 \u0111o\u1ea3n m\u1ea1ch ho\u1eb7c v\u1ecf thi\u1ebft b\u1ecb kh\u00f4ng an to\u00e0n.<\/p>\n\n\n\n

Trong t\u00ecnh hu\u1ed1ng \u0111\u00f3, m\u1ed9t t\u1ea5m c\u00e1ch \u0111i\u1ec7n c\u00f3 th\u1ec3 t\u1ea1o \u0111\u01b0\u1eddng truy\u1ec1n nhi\u1ec7t \u0111\u1ed3ng th\u1eddi c\u00e1ch ly tab v\u1edbi b\u1ed9 t\u1ea3n nhi\u1ec7t. Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i IC n\u00e0o c\u0169ng t\u1ef1 \u0111\u1ed9ng c\u1ea7n t\u1ea5m \u0111\u1ec7m. M\u1ed9t linh ki\u1ec7n d\u1ea1ng v\u1ecf \u0111\u01b0\u1ee3c c\u00e1ch \u0111i\u1ec7n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u0111\u00e3 cung c\u1ea5p \u0111\u1ee7 l\u1edbp ch\u1eafn c\u1ea7n thi\u1ebft. \u1ede m\u1ed9t thi\u1ebft k\u1ebf kh\u00e1c, to\u00e0n b\u1ed9 b\u1ed9 t\u1ea3n nhi\u1ec7t \u0111\u01b0\u1ee3c ch\u1ee7 \u00fd c\u00e1ch ly. Tr\u00ean m\u1ed9t QFN \u0111\u01b0\u1ee3c g\u1eafn tr\u00ean PCB, \u0111\u01b0\u1eddng truy\u1ec1n nhi\u1ec7t ch\u00ednh c\u00f3 th\u1ec3 \u0111i v\u00e0o \u0111\u1ed3ng v\u00e0 c\u00e1c via thay v\u00ec \u0111i qua m\u1ed9t t\u1ea5m ri\u00eang bi\u1ec7t. H\u00e3y v\u1ebd r\u00f5 c\u00e1c ranh gi\u1edbi \u0111i\u1ec7n v\u00e0 nhi\u1ec7t th\u1ef1c t\u1ebf tr\u01b0\u1edbc khi \u0111\u1eb7t mua v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

H\u01b0\u1edbng d\u1eabn c\u1ee7a HAKTAK v\u1ec1 c\u00e1c mi\u1ebfng c\u00e1ch nhi\u1ec7t c\u00e1ch \u0111i\u1ec7n b\u1eb1ng \u0111i\u1ec7n<\/a> r\u1ea5t h\u1eefu \u00edch khi v\u1ecf linh ki\u1ec7n, khung m\u00e1y v\u00e0 b\u1ed9 t\u1ea3n nhi\u1ec7t n\u1eb1m \u1edf c\u00e1c m\u1ee9c \u0111i\u1ec7n th\u1ebf kh\u00e1c nhau. N\u1ed9i dung n\u00e0y xem c\u00e1ch ly l\u00e0 m\u1ed9t \u0111\u1eb7c t\u00ednh c\u1ee7a m\u1ed1i gh\u00e9p \u0111\u00e3 l\u1eafp r\u00e1p, ch\u1ee9 kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t t\u1eeb ng\u1eef t\u1ea1o c\u1ea3m gi\u00e1c y\u00ean t\u00e2m tr\u00ean nh\u00e3n s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

T\u1ea5m \u0111\u1ec7m kh\u00f4ng c\u00e1ch \u0111i\u1ec7n cho v\u00edt l\u1eafp<\/h3>\n\n\n\n

\u0110\u00e2y l\u00e0 m\u1ed9t l\u1ed7i ch\u1ec9 c\u00f3 v\u1ebb hi\u1ec3n nhi\u00ean sau khi \u0111\u00e3 x\u1ea3y ra. T\u1ea5m \u0111\u1ec7m n\u1eb1m ngay ng\u1eafn b\u00ean d\u01b0\u1edbi tab kim lo\u1ea1i. V\u00edt l\u1eafp \u0111i xuy\u00ean qua tab v\u00e0 ch\u1ea1m v\u00e0o b\u1ed9 t\u1ea3n nhi\u1ec7t. Gi\u1edd \u0111\u00e2y, d\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 ch\u1ea1y xung quanh<\/strong> t\u1ea5m. Trong thi\u1ebft k\u1ebf c\u1ea7n c\u00e1ch ly, c\u0169ng c\u00f3 th\u1ec3 c\u1ea7n d\u00f9ng b\u1ea1c vai ph\u00f9 h\u1ee3p ho\u1eb7c ph\u1ea7n c\u1ee9ng c\u00e1ch \u0111i\u1ec7n kh\u00e1c theo ch\u1ec9 \u0111\u1ecbnh.<\/p>\n\n\n\n

B\u1ea3n th\u00e2n mi\u1ebfng \u0111\u1ec7m ph\u1ea3i bao ph\u1ee7 to\u00e0n b\u1ed9 v\u00f9ng ti\u1ebfp x\u00fac kim lo\u1ea1i d\u1ef1 ki\u1ebfn. C\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn ba via, c\u00e1c c\u1ea1nh s\u1eafc, d\u1ea5u h\u1eb1n c\u1ee7a v\u00f2ng \u0111\u1ec7m v\u00e0 c\u00e1c l\u1ed7 d\u1eadp khu\u00f4n khi\u1ebfn ph\u1ea7n v\u1eadt li\u1ec7u c\u00f2n l\u1ea1i qu\u00e1 \u00edt. Si\u1ebft k\u1eb9p qu\u00e1 ch\u1eb7t c\u00f3 th\u1ec3 l\u00e0m th\u1ee7ng m\u1ed9t s\u1ed1 k\u1ebft c\u1ea5u. Si\u1ebft qu\u00e1 l\u1ecfng khi\u1ebfn kh\u00f4ng kh\u00ed l\u1ecdt v\u00e0o m\u1ed1i gh\u00e9p. C\u00e1ch x\u1eed l\u00fd an to\u00e0n ph\u1ee5 thu\u1ed9c v\u00e0o v\u1ecf linh ki\u1ec7n v\u00e0 h\u01b0\u1edbng d\u1eabn v\u1ec1 ph\u1ea7n c\u1ee9ng l\u1eafp \u0111\u1eb7t, kh\u00f4ng ph\u1ea3i m\u1ed9t gi\u00e1 tr\u1ecb m\u00f4-men si\u1ebft tr\u00ean internet \u0111\u01b0\u1ee3c l\u1ea5y t\u1eeb m\u1ed9t transistor kh\u00e1c.<\/p>\n\n\n\n

\u0110i\u1ec7n \u0111i\u1ec7n \u00e1p \u0111\u00e1nh th\u1ee7ng<\/strong> \u0111\u01b0\u1ee3c \u0111o tr\u00ean m\u1ed9t m\u1eabu th\u1eed trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u00e3 n\u00eau. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 cam k\u1ebft r\u1eb1ng c\u00f9ng m\u1ee9c \u0111i\u1ec7n \u00e1p \u0111\u00f3 s\u1ebd lu\u00f4n an to\u00e0n trong m\u1ed9t c\u1ee5m l\u1eafp r\u00e1p \u0111\u01b0\u1ee3c b\u1eaft bu l\u00f4ng, ch\u1ecbu \u1ea9m v\u00e0 rung \u0111\u1ed9ng. \u0110i\u1ec7n \u00e1p ph\u01b0\u01a1ng ph\u00e1p ASTM D149-25<\/a> \u0111\u1ec1 c\u1eadp \u0111\u1ebfn \u0111i\u1ec7n \u00e1p \u0111\u00e1nh th\u1ee7ng \u0111i\u1ec7n m\u00f4i v\u00e0 \u0111\u1ed9 b\u1ec1n \u0111i\u1ec7n m\u00f4i c\u1ee7a v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n r\u1eafn \u1edf t\u1ea7n s\u1ed1 \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p. S\u1eed d\u1ee5ng ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ec3 hi\u1ec3u c\u00e1ch v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m<\/em>. Sau \u0111\u00f3, x\u00e1c nh\u1eadn b\u1ed1 tr\u00ed l\u1eafp \u0111\u1eb7t ho\u00e0n ch\u1ec9nh \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u th\u1ef1c t\u1ebf v\u1ec1 \u0111i\u1ec7n c\u1ee7a s\u1ea3n ph\u1ea9m. Ki\u1ec3m tra chi\u1ec1u d\u00e0i \u0111\u01b0\u1eddng r\u00f2 v\u00e0 khe h\u1edf kh\u00f4ng kh\u00ed xung quanh t\u1ea5m, c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng \u0111\u00e1nh th\u1ee7ng xuy\u00ean qua t\u1ea5m.<\/p>\n\n\n\n

B\u00ean trong t\u1ea5m \u0111\u1ec7m silicone c\u00f3 g\u00ec?<\/h2>\n\n\n\n

Nhi\u1ec1u t\u1ea5m \u0111\u1ec7m k\u1ebft h\u1ee3p ch\u1ea5t \u0111\u00e0n h\u1ed3i silicone v\u1edbi ch\u1ea5t \u0111\u1ed9n d\u1eabn nhi\u1ec7t. C\u00e1c ch\u1ea5t \u0111\u1ed9n nh\u01b0 alumina ho\u1eb7c boron nitride c\u00f3 th\u1ec3 truy\u1ec1n nhi\u1ec7t m\u00e0 v\u1eabn cho ph\u00e9p v\u1eadt li\u1ec7u duy tr\u00ec kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n. L\u1edbp gia c\u01b0\u1eddng c\u00f3 th\u1ec3 gi\u00fap thao t\u00e1c d\u1ec5 d\u00e0ng h\u01a1n v\u00e0 t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch ho\u1eb7c ch\u1ed1ng c\u1eaft xuy\u00ean. M\u00e0ng \u0111\u1ee1 c\u00f3 th\u1ec3 gi\u00fap chi ti\u1ebft m\u1ecfng kh\u00f4ng b\u1ecb h\u01b0 h\u1ecfng trong qu\u00e1 tr\u00ecnh c\u1eaft v\u00e0 l\u1eafp r\u00e1p.<\/p>\n\n\n\n

\u201cSilicone\u201d l\u00e0 h\u1ecd polymer \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u lo\u1ea1i t\u1ea5m \u0111\u1ec7m n\u00e0y; \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 silicon<\/em> chip b\u00ean trong IC. Ch\u1ec9 kh\u00e1c nhau \u0111\u00f4i ch\u00fat v\u1ec1 c\u00e1ch g\u1ecdi nh\u01b0ng v\u1eadt li\u1ec7u l\u1ea1i ho\u00e0n to\u00e0n kh\u00e1c nhau.<\/p>\n\n\n\n

Ngo\u00e0i ra, t\u00ean g\u1ecdi chung \u201ct\u1ea5m \u0111\u1ec7m nhi\u1ec7t\u201d h\u1ea7u nh\u01b0 kh\u00f4ng cho bi\u1ebft g\u00ec v\u1ec1 kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n. T\u1ea5m graphite ho\u1eb7c t\u1ea5m c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon cao c\u00f3 th\u1ec3 t\u1ea3n nhi\u1ec7t r\u1ea5t t\u1ed1t nh\u01b0ng v\u1eabn d\u1eabn \u0111i\u1ec7n. M\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m g\u1ed1c silicone c\u0169ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n kh\u00e1c nhau. H\u00e3y y\u00eau c\u1ea7u cung c\u1ea5p c\u1ee7a \u0111\u00fang c\u1ea5p v\u1eadt li\u1ec7u \u0111\u00f3<\/strong> d\u1eef li\u1ec7u \u0111i\u1ec7n m\u00f4i khi t\u1ea5m n\u00e0y l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng c\u00e1ch \u0111i\u1ec7n.<\/p>\n\n\n\n

C\u1ea5u t\u1ea1o<\/strong><\/th>L\u00fd do c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u1ee5m IC<\/strong><\/th>N\u1ed9i dung c\u1ea7n ki\u1ec3m tra k\u1ef9 h\u01a1n<\/strong><\/th><\/tr>
T\u1ea5m \u0111\u1ec7m silicone m\u1ec1m ch\u1ee9a ch\u1ea5t \u0111\u1ed9n g\u1ed1m<\/td>\u00d4m s\u00e1t c\u00e1c b\u1ec1 m\u1eb7t kh\u00f4ng b\u1eb1ng ph\u1eb3ng v\u00e0 l\u1ea5p \u0111\u1ea7y khe h\u1edf c\u00f3 k\u00edch th\u01b0\u1edbc x\u00e1c \u0111\u1ecbnh<\/td>\u0110\u1ed9 d\u00e0y sau l\u1eafp \u0111\u1eb7t, l\u1ef1c \u00e9p, th\u1eed nghi\u1ec7m \u0111i\u1ec7n m\u00f4i v\u00e0 \u0111\u1ed9 n\u00e9n d\u00e0i h\u1ea1n<\/td><\/tr>
T\u1ea5m silicone gia c\u01b0\u1eddng s\u1ee3i th\u1ee7y tinh<\/td>B\u1ed1 tr\u00ed l\u1edbp m\u1ecfng c\u00f3 ki\u1ec3m so\u00e1t v\u00e0 thao t\u00e1c d\u1ec5 d\u00e0ng h\u01a1n<\/td>Kh\u1ea3 n\u0103ng ti\u1ebfp x\u00fac d\u01b0\u1edbi \u00e1p l\u1ef1c hi\u1ec7n c\u00f3 v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng h\u01b0 h\u1ecfng c\u1ea1nh<\/td><\/tr>
T\u1ea5m d\u1eabn nhi\u1ec7t c\u00f3 l\u1edbp n\u1ec1n polyimide<\/td>L\u1edbp n\u1ec1n m\u1ecfng c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc v\u00e0 \u0111i\u1ec7n m\u00f4i h\u1eefu \u00edch<\/td>Hi\u1ec7u n\u0103ng c\u1ee7a to\u00e0n b\u1ed9 k\u1ebft c\u1ea5u nhi\u1ec1u l\u1edbp<\/em>, bao g\u1ed3m m\u1ecdi l\u1edbp ph\u1ee7 ho\u1eb7c keo d\u00e1n<\/td><\/tr>
Mi\u1ebfng t\u1ea3n nhi\u1ec7t kh\u00f4ng ch\u1ee9a silicone<\/td>Ph\u01b0\u01a1ng \u00e1n d\u00f9ng khi nguy c\u01a1 nhi\u1ec5m silicone \u0111\u00e3 \u0111\u01b0\u1ee3c ghi nh\u1eadn trong t\u00e0i li\u1ec7u<\/td>C\u1ea5p c\u00e1ch \u0111i\u1ec7n, d\u1ea3i nhi\u1ec7t \u0111\u1ed9 v\u00e0 kh\u1ea3 n\u0103ng \u0111\u00e1p \u1ee9ng \u00e1p su\u1ea5t ch\u00ednh x\u00e1c<\/td><\/tr>
V\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n b\u1eb1ng mica ho\u1eb7c g\u1ed1m<\/td>L\u1edbp ch\u1eafn \u0111i\u1ec7n c\u1ee9ng d\u00f9ng cho c\u00e1c m\u1ed1i gh\u00e9p ph\u1eb3ng ph\u00f9 h\u1ee3p \u0111\u01b0\u1ee3c k\u1eb9p ch\u1eb7t<\/td>\u0110\u1ed9 gi\u00f2n, \u0111\u1ed9 ph\u1eb3ng v\u00e0 h\u1ee3p ch\u1ea5t ti\u1ebfp x\u00fac \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh tr\u00ean t\u1eebng m\u1eb7t<\/td><\/tr>
T\u1ea5m d\u1eabn nhi\u1ec7t b\u1eb1ng graphit ho\u1eb7c gi\u00e0u cacbon<\/td>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 d\u00e0n \u0111\u1ec1u nhi\u1ec7t<\/td>C\u00f3 th\u1ec3 d\u1eabn \u0111i\u1ec7n; kh\u00f4ng \u0111\u01b0\u1ee3c m\u1eb7c \u0111\u1ecbnh l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u0110\u1ed1i v\u1edbi t\u1ea5m c\u00f3 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i, khi c\u1ea3 kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n v\u00e0 \u0111\u1ed9 n\u00e9n \u0111\u1ec1u quan tr\u1ecdng, h\u00e3y \u0111\u1ed1i chi\u1ebfu t\u1ea5m c\u1ee7a HAKTAK t\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t silicone<\/a> v\u1edbi khe h\u1edf v\u00e0 t\u1ea3i tr\u1ecdng th\u1ef1c t\u1ebf. Thay v\u00e0o \u0111\u00f3, m\u1ed9t t\u1ea5m ch\u1eafn b\u1ebf m\u1ecfng h\u01a1n, b\u1ec1n h\u01a1n c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi v\u1ea3i silicon c\u00e1ch nhi\u1ec7t gia c\u1ed1<\/a> c\u1ea5u t\u1ea1o. C\u00e1c li\u00ean k\u1ebft \u0111\u00f3 d\u1eabn \u0111\u1ebfn c\u00e1c nh\u00f3m v\u1eadt li\u1ec7u, kh\u00f4ng<\/strong> cam k\u1ebft r\u1eb1ng m\u1ecdi c\u1ea5p v\u1eadt li\u1ec7u hi\u1ec7n c\u00f3 \u0111\u1ec1u \u0111\u00e1p \u1ee9ng c\u00f9ng m\u1ed9t y\u00eau c\u1ea7u v\u1ec1 \u0111i\u1ec7n \u00e1p ho\u1eb7c nhi\u1ec7t \u0111\u1ed9.<\/p>\n\n\n\n

N\u1ebfu b\u1ec1 m\u1eb7t quang h\u1ecdc, ti\u1ebfp \u0111i\u1ec3m ho\u1eb7c quy tr\u00ecnh ph\u1ee7 \u1edf c\u00f4ng \u0111o\u1ea1n sau th\u1ef1c s\u1ef1 nh\u1ea1y c\u1ea3m v\u1edbi silicone, t\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t kh\u00f4ng ch\u1ee9a silicone<\/a> l\u00e0 m\u1ed9t nh\u00f3m kh\u00e1c c\u1ea7n xem x\u00e9t. V\u1eadt li\u1ec7u thay th\u1ebf v\u1eabn c\u1ea7n \u0111\u01b0\u1ee3c th\u1ea9m \u0111\u1ecbnh ri\u00eang v\u1ec1 \u0111\u1eb7c t\u00ednh nhi\u1ec7t v\u00e0 \u0111i\u1ec7n. Vi\u1ec7c chuy\u1ec3n sang th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc polymer kh\u00e1c kh\u00f4ng th\u1ec3 t\u1ef1 \u0111\u1ed9ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n

\"mi\u1ebfng<\/figure>\n\n\n\n

Mi\u1ebfng \u0111\u1ec7m silicone, m\u1ee1 t\u1ea3n nhi\u1ec7t, mica hay v\u1eadt li\u1ec7u ch\u00e8n khe h\u1edf d\u00e0y?<\/h2>\n\n\n\n

C\u00e1c v\u1eadt li\u1ec7u n\u00e0y \u0111\u1ea3m nhi\u1ec7m nh\u1eefng ch\u1ee9c n\u0103ng kh\u00e1c nhau trong c\u00f9ng m\u1ed9t nh\u00f3m \u1ee9ng d\u1ee5ng. Vi\u1ec7c l\u1ef1a ch\u1ecdn ch\u1ec9 d\u1ef1a v\u00e0o c\u1ea3m gi\u00e1c khi s\u1edd ho\u1eb7c m\u00e0u s\u1eafc c\u0169ng gi\u1ed1ng nh\u01b0 ch\u1ecdn gio\u0103ng ch\u1ec9 v\u00ec n\u00f3 c\u00f3 m\u00e0u xanh.<\/p>\n\n\n\n

L\u1ef1a ch\u1ecdn<\/strong><\/th>\u01afu \u0111i\u1ec3m<\/strong><\/th>L\u01b0u \u00fd v\u1ec1 c\u00e1ch \u0111i\u1ec7n v\u00e0 l\u1eafp r\u00e1p<\/strong><\/th><\/tr>
T\u1ea5m c\u00e1ch \u0111i\u1ec7n m\u1ecfng<\/td>L\u1eafp \u0111\u1eb7t s\u1ea1ch, nh\u1ea5t qu\u00e1n tr\u00ean b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac ph\u1eb3ng \u0111\u01b0\u1ee3c k\u1eb9p ch\u1eb7t<\/td>X\u00e1c minh ch\u00ednh x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111i\u1ec7n m\u00f4i v\u00e0 to\u00e0n b\u1ed9 \u0111\u01b0\u1eddng d\u1eabn l\u1eafp \u0111\u1eb7t<\/td><\/tr>
Keo t\u1ea3n nhi\u1ec7t<\/td>L\u1edbp ti\u1ebfp x\u00fac r\u1ea5t m\u1ecfng tr\u00ean c\u00e1c m\u1ed1i gh\u00e9p ph\u1eb3ng ph\u00f9 h\u1ee3p<\/td>Ch\u1ec9 ri\u00eang m\u1ee1 kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c xem l\u00e0 l\u1edbp c\u00e1ch ly \u0111\u00e1ng tin c\u1eady<\/td><\/tr>
Mica ho\u1eb7c g\u1ed1m c\u00f3 TIM \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh<\/td>L\u1edbp ng\u0103n c\u1ee9ng trong k\u1ebft c\u1ea5u l\u1eafp \u0111\u1eb7t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/td>C\u00f3 th\u1ec3 c\u1ea7n x\u1eed l\u00fd k\u1ef9 l\u01b0\u1ee1ng c\u1ea3 hai b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac v\u00e0 s\u1eed d\u1ee5ng c\u01a1 c\u1ea5u k\u1eb9p t\u01b0\u01a1ng th\u00edch<\/td><\/tr>
T\u1ea5m \u0111\u1ec7m l\u1ea5p khe h\u1edf m\u1ec1m, d\u00e0y h\u01a1n<\/td>B\u00f9 cho khe h\u1edf l\u1edbn ho\u1eb7c thay \u0111\u1ed5i gi\u1eefa bo m\u1ea1ch v\u00e0 v\u1ecf<\/td>\u0110\u1ed9 d\u00e0y v\u00e0 l\u1ef1c b\u1ed5 sung c\u00f3 th\u1ec3 g\u00e2y h\u1ea1i cho thi\u1ebft b\u1ecb c\u00f4ng su\u1ea5t \u0111\u01b0\u1ee3c l\u1eafp ch\u1eb7t<\/td><\/tr>
M\u00e0ng chuy\u1ec3n pha<\/td>C\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 ti\u1ebfp x\u00fac sau khi \u0111\u1ea1t \u0111\u1ebfn \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c<\/td>Ki\u1ec3m tra \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n, ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t v\u00e0 hi\u1ec7u su\u1ea5t qua c\u00e1c chu k\u1ef3 nhi\u1ec7t<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

M\u1ed9t \u0111i\u1ec3m kh\u00e1c bi\u1ec7t n\u1eefa: Mi\u1ebfng \u0111\u1ec7m nhi\u1ec7t kh\u00f4ng nh\u1ea5t thi\u1ebft l\u00e0 ch\u1ea5t k\u1ebft d\u00ednh<\/strong>. B\u1ec1 m\u1eb7t h\u01a1i d\u00ednh c\u00f3 th\u1ec3 gi\u00fap \u0111\u1ecbnh v\u1ecb, nh\u01b0ng b\u1ed9 t\u1ea3n nhi\u1ec7t th\u01b0\u1eddng v\u1eabn c\u1ea7n \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh b\u1eb1ng k\u1eb9p, v\u00edt ho\u1eb7c gi\u00e1 \u0111\u1ee1 theo thi\u1ebft k\u1ebf. N\u1ebfu c\u1ea7n li\u00ean k\u1ebft ch\u1ecbu l\u1ef1c, h\u00e3y ch\u1ec9 \u0111\u1ecbnh h\u1ec7 th\u1ed1ng k\u1ebft d\u00ednh chuy\u00ean d\u1ee5ng cho m\u1ee5c \u0111\u00edch \u0111\u00f3.<\/p>\n\n\n\n

C\u00f3 th\u1ec3 b\u00f4i m\u1ee1 t\u1ea3n nhi\u1ec7t l\u00ean c\u1ea3 hai m\u1eb7t c\u1ee7a t\u1ea5m \u0111\u1ec7m silicone kh\u00f4ng? Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t y\u00eau c\u1ea7u d\u00f9ng h\u1ee3p ch\u1ea5t t\u1ea3n nhi\u1ec7t c\u00f9ng v\u1edbi m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n c\u1ee5 th\u1ec3. C\u00e1c t\u1ea5m \u0111\u1ec7m kh\u00e1c \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp m\u00e0 kh\u00f4ng c\u1ea7n h\u1ee3p ch\u1ea5t n\u00e0y. B\u00f4i th\u00eam m\u1ee1 c\u00f3 th\u1ec3 l\u00e0m qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p m\u1ea5t v\u1ec7 sinh v\u00e0 ch\u01b0a ch\u1eafc c\u1ea3i thi\u1ec7n \u0111\u01b0\u1ee3c b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac v\u1ed1n \u0111\u00e3 c\u00f3 kh\u1ea3 n\u0103ng bi\u1ebfn d\u1ea1ng \u00f4m kh\u00edt. H\u00e3y tu\u00e2n theo h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng c\u1ee7a c\u1ea5p v\u1eadt li\u1ec7u c\u1ee5 th\u1ec3<\/strong> v\u00e0 ki\u1ec3m ch\u1ee9ng k\u1ebft qu\u1ea3 tr\u00ean c\u1ee5m l\u1eafp r\u00e1p. Quy t\u1eafc chung ki\u1ec3u \u201clu\u00f4n b\u00f4i th\u00eam keo t\u1ea3n nhi\u1ec7t\u201d kh\u00f4ng h\u1eefu \u00edch trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y.<\/p>\n\n\n\n

\"mi\u1ebfng<\/figure>\n\n\n\n

Ch\u1ecdn v\u00e0 l\u1eafp \u0111\u1eb7t t\u1ea5m \u0111\u1ec7m theo IC th\u1ef1c t\u1ebf<\/h2>\n\n\n\n

H\u00e3y x\u00e9t m\u1ed9t v\u00ed d\u1ee5 c\u1ee5 th\u1ec3. M\u1ed9t bo m\u1ea1ch ngu\u1ed3n c\u00f3 hai linh ki\u1ec7n TO-220 g\u1eafn tr\u00ean c\u00f9ng m\u1ed9t thanh nh\u00f4m. C\u00e1c tab c\u1ee7a ch\u00fang c\u00f3 \u0111i\u1ec7n th\u1ebf kh\u00e1c nhau. B\u1ea3n v\u1ebd y\u00eau c\u1ea7u c\u00e1ch \u0111i\u1ec7n gi\u1eefa ch\u00fang, c\u00f2n thanh nh\u00f4m n\u00f3ng l\u00ean khi thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng. Quy tr\u00ecnh l\u1ef1a ch\u1ecdn c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n nh\u01b0 sau:<\/p>\n\n\n\n

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  1. X\u00e1c \u0111\u1ecbnh linh ki\u1ec7n.<\/strong> \u0110\u1ecdc th\u00f4ng tin tr\u00ean v\u1ecf linh ki\u1ec7n v\u00e0 datasheet c\u1ee7a t\u1eebng linh ki\u1ec7n. X\u00e1c \u0111\u1ecbnh n\u00fat \u0111i\u1ec7n n\u1ed1i v\u1edbi tab kim lo\u1ea1i v\u00e0 \u0111\u01b0\u1eddng truy\u1ec1n nhi\u1ec7t t\u1eeb m\u1ed1i n\u1ed1i \u0111\u1ebfn v\u1ecf. Kh\u00f4ng cho r\u1eb1ng hai linh ki\u1ec7n c\u00f3 c\u00f9ng ki\u1ec3u d\u00e1ng v\u1ecf th\u00ec c\u00f3 c\u00f9ng k\u1ebft n\u1ed1i \u1edf tab.<\/li>\n\n\n\n
  2. X\u00e1c \u0111\u1ecbnh ranh gi\u1edbi c\u00e1ch \u0111i\u1ec7n.<\/strong> X\u00e1c \u0111\u1ecbnh xem t\u1eebng linh ki\u1ec7n c\u00f3 c\u1ea7n c\u00e1ch \u0111i\u1ec7n gi\u1eefa tab v\u00e0 thanh nh\u00f4m hay kh\u00f4ng. T\u00ednh c\u1ea3 chi ti\u1ebft si\u1ebft gi\u1eef, v\u00f2ng \u0111\u1ec7m ho\u1eb7c k\u1eb9p, m\u00e9p t\u1ea5m \u0111\u1ec7m v\u00e0 b\u1ea3n th\u00e2n thanh nh\u00f4m. V\u00f2ng \u0111\u1ec7m c\u00e1ch \u0111i\u1ec7n c\u00f3 vai nh\u1ecf c\u00f3 th\u1ec3 quan tr\u1ecdng kh\u00f4ng k\u00e9m t\u1ea5m \u0111\u1ec7m l\u1edbn h\u00ecnh ch\u1eef nh\u1eadt m\u00e0u h\u1ed3ng.<\/li>\n\n\n\n
  3. \u0110o m\u1ed1i gh\u00e9p th\u1ef1c t\u1ebf.<\/strong> Ki\u1ec3m tra \u0111\u1ed9 ph\u1eb3ng c\u1ee7a v\u1ecf linh ki\u1ec7n, \u0111\u1ed9 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t thanh ray, di\u1ec7n t\u00edch ti\u1ebfp x\u00fac kh\u1ea3 d\u1ee5ng, chi\u1ec1u cao x\u1ebfp ch\u1ed3ng v\u00e0 gi\u1edbi h\u1ea1n l\u1ef1c l\u1eafp. \u0110\u1ed1i v\u1edbi t\u1ea5m \u0111\u1ec7m n\u1ed1i t\u1edbi v\u1ecf thi\u1ebft b\u1ecb, c\u1ea7n t\u00ednh \u0111\u1ebfn khe h\u1edf nh\u1ecf nh\u1ea5t v\u00e0 l\u1edbn nh\u1ea5t; h\u01b0\u1edbng d\u1eabn c\u1ee7a HAKTAK v\u1ec1 l\u1ef1a ch\u1ecdn \u0111\u1ed9 d\u00e0y t\u1ea5m \u0111\u1ec7m nhi\u1ec7t<\/a> tr\u00ecnh b\u00e0y quy tr\u00ecnh ph\u00e2n t\u00edch dung sai chuy\u00ean s\u00e2u h\u01a1n. \u0110\u1ed1i v\u1edbi ch\u00e2n t\u1ea3n nhi\u1ec7t c\u1ee7a transistor \u0111\u01b0\u1ee3c k\u1eb9p ch\u1eb7t, kh\u00f4ng \u0111\u01b0\u1ee3c thay b\u1eb1ng t\u1ea5m \u0111\u1ec7m d\u00e0y, m\u1ec1m d\u00f9ng cho v\u1ecf thi\u1ebft b\u1ecb ch\u1ec9 v\u00ec c\u1ea3 hai s\u1ea3n ph\u1ea9m \u0111\u1ec1u \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u1ea5m \u0111\u1ec7m nhi\u1ec7t.<\/li>\n\n\n\n
  4. L\u1eadp danh s\u00e1ch r\u00fat g\u1ecdn c\u00e1c c\u1ea5u t\u1ea1o \u0111\u1ea1t y\u00eau c\u1ea7u.<\/strong> H\u00e3y y\u00eau c\u1ea7u th\u00f4ng tin v\u1ec1 \u0111\u1ed9 d\u00e0y \u1edf tr\u1ea1ng th\u00e1i cung c\u1ea5p v\u00e0 sau khi l\u1eafp \u0111\u1eb7t, \u0111\u1eb7c t\u00ednh nhi\u1ec7t theo ph\u01b0\u01a1ng xuy\u00ean chi\u1ec1u d\u00e0y, d\u1eef li\u1ec7u \u0111i\u1ec7n m\u00f4i, \u0111\u1eb7c t\u00ednh khi b\u1ecb c\u1eaft xuy\u00ean v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t khuy\u1ebfn ngh\u1ecb. Lo\u1ea1i c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao h\u01a1n c\u00f3 th\u1ec3 c\u1ee9ng h\u01a1n. N\u1ebfu l\u1ef1c k\u1eb9p hi\u1ec7n c\u00f3 th\u1ea5p, ch\u1ec9 s\u1ed1 W\/m\u00b7K \u201ct\u1ed1t h\u01a1n\u201d ch\u01b0a ch\u1eafc t\u1ea1o \u0111\u01b0\u1ee3c \u0111\u1ed9 ti\u1ebfp x\u00fac t\u1ed1t.<\/li>\n\n\n\n
  5. Chu\u1ea9n b\u1ecb c\u00e1c chi ti\u1ebft.<\/strong> Ki\u1ec3m tra thanh ray xem c\u00f3 ba via v\u00e0 c\u00e1c v\u1ebft gia c\u00f4ng s\u1eafc c\u1ea1nh hay kh\u00f4ng. L\u00e0m s\u1ea1ch c\u00e1c b\u1ec1 m\u1eb7t l\u1eafp gh\u00e9p theo quy \u0111\u1ecbnh. X\u00e1c nh\u1eadn t\u1ea5m \u0111\u01b0\u1ee3c b\u1ebf theo khu\u00f4n che ph\u1ee7 \u0111\u00fang khu v\u1ef1c tai \u0111\u1ecbnh v\u1ecb m\u00e0 kh\u00f4ng c\u1ea3n tr\u1edf ph\u1ee5 ki\u1ec7n l\u1eafp \u0111\u1eb7t. Th\u00e1o c\u1ea3 hai l\u1edbp gi\u1ea5y l\u00f3t ch\u1ed1ng d\u00ednh n\u1ebfu s\u1ea3n ph\u1ea9m c\u00f3 c\u00e1c l\u1edbp n\u00e0y<\/strong>; m\u1ed9t l\u1edbp m\u00e0ng trong su\u1ed1t b\u1ecb b\u1ecf qu\u00ean c\u00f3 th\u1ec3 kh\u00f3 ph\u00e1t hi\u1ec7n \u0111\u1ebfn b\u1ea5t ng\u1edd.<\/li>\n\n\n\n
  6. L\u1eafp b\u1eb1ng ph\u1ee5 ki\u1ec7n l\u1eafp \u0111\u1eb7t \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh.<\/strong> \u0110\u1eb7t mi\u1ebfng \u0111\u1ec7m \u0111\u00fang t\u00e2m, l\u1eafp \u0111\u00fang b\u1ea1c l\u00f3t c\u00e1ch \u0111i\u1ec7n n\u1ebfu c\u1ea7n, r\u1ed3i si\u1ebft ch\u1eb7t ho\u1eb7c k\u1eb9p linh ki\u1ec7n theo h\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t. Kh\u00f4ng ph\u1ecfng \u0111o\u00e1n m\u00f4-men si\u1ebft d\u1ef1a tr\u00ean m\u1ed9t IC kh\u00e1c. Mi\u1ebfng \u0111\u1ec7m ph\u1ea3i \u00e1p kh\u00edt, kh\u00f4ng b\u1ecb g\u1eadp, x\u00ea d\u1ecbch ho\u1eb7c k\u1eb9p ch\u1eb7t t\u1ea1i l\u1ed7.<\/li>\n\n\n\n
  7. Ki\u1ec3m tra c\u1ee5m \u0111\u00e3 l\u1eafp r\u00e1p.<\/strong> \u0110o nhi\u1ec7t \u0111\u1ed9 linh ki\u1ec7n trong \u0111i\u1ec1u ki\u1ec7n t\u1ea3i v\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng t\u01b0\u01a1ng \u1ee9ng. Th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p ki\u1ec3m tra kh\u1ea3 n\u0103ng ch\u1ecbu \u0111i\u1ec7n ho\u1eb7c c\u00e1ch ly ph\u00f9 h\u1ee3p v\u1edbi s\u1ea3n ph\u1ea9m. Khi \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u, l\u1eb7p l\u1ea1i c\u00e1c ph\u00e9p ki\u1ec3m tra sau khi ph\u01a1i nhi\u1ec5m \u0111\u1ed9 \u1ea9m, rung \u0111\u1ed9ng ho\u1eb7c chu k\u1ef3 nhi\u1ec7t.<\/li>\n<\/ol>\n\n\n\n

    C\u00f3 th\u1ec3 h\u00ecnh dung \u0111\u01a1n gi\u1ea3n r\u1eb1ng mi\u1ebfng \u0111\u1ec7m ho\u1ea1t \u0111\u1ed9ng ph\u1ea7n n\u00e0o gi\u1ed1ng nh\u01b0 m\u1ed9t gio\u0103ng m\u1ec1m: n\u00f3 gi\u00fap hai b\u1ec1 m\u1eb7t kh\u00f4ng ho\u00e0n to\u00e0n ph\u1eb3ng ti\u1ebfp x\u00fac v\u1edbi nhau. Tuy nhi\u00ean, b\u1ea3n th\u00e2n n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 to\u00e0n b\u1ed9 gio\u0103ng h\u1ec7 th\u1ed1ng<\/em> n\u1ebfu bu l\u00f4ng t\u1ea1o cho d\u00f2ng \u0111i\u1ec7n m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn kh\u00e1c \u0111\u1ec3 \u0111i v\u00f2ng qua n\u00f3. C\u1ea3 kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t v\u00e0 c\u00e1ch \u0111i\u1ec7n \u0111\u1ec1u ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed1i n\u1ed1i sau khi ho\u00e0n thi\u1ec7n.<\/p>\n\n\n\n

    \"mi\u1ebfng<\/figure>\n\n\n\n

    Mi\u1ebfng \u0111\u1ec7m silicone cho IC h\u1eefu \u00edch trong th\u1ef1c t\u1ebf \u1edf \u0111\u00e2u?<\/h2>\n\n\n\n

    Trong m\u1ed9t b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 c\u00f4ng nghi\u1ec7p<\/strong>, m\u1ed9t linh ki\u1ec7n c\u00f4ng su\u1ea5t MOSFET ho\u1eb7c b\u1ed9 ch\u1ec9nh l\u01b0u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1eb9p v\u00e0o b\u1ed9 t\u1ea3n nhi\u1ec7t kim lo\u1ea1i d\u00f9ng chung. T\u1ea5m c\u00e1ch \u0111i\u1ec7n ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 gi\u00fap ng\u0103n tab \u0111ang mang \u0111i\u1ec7n ti\u1ebfp x\u00fac v\u1edbi ph\u1ea7n kim lo\u1ea1i m\u00e0 v\u1eabn truy\u1ec1n nhi\u1ec7t ra ngo\u00e0i. Thi\u1ebft k\u1ebf c\u0169ng c\u1ea7n \u0111\u1ea3m b\u1ea3o c\u00e1ch \u0111i\u1ec7n t\u1ea1i v\u00edt v\u00e0 ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 cu\u1ed1i c\u00f9ng c\u1ee7a b\u1ed9 t\u1ea3n nhi\u1ec7t.<\/p>\n\n\n\n

    Trong m\u1ed9t b\u1ed9 ngu\u1ed3n ho\u1eb7c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED<\/strong>, b\u1ed9 \u1ed5n \u00e1p c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng g\u1ea7n gi\u1edbi h\u1ea1n nhi\u1ec7t trong m\u1ed9t v\u1ecf thi\u1ebft b\u1ecb nh\u1ecf. L\u1edbp ti\u1ebfp x\u00fac m\u1ecfng, \u0111\u01b0\u1ee3c gia c\u01b0\u1eddng c\u00f3 th\u1ec3 gi\u00fap l\u1eafp r\u00e1p g\u1ecdn g\u00e0ng h\u01a1n, mi\u1ec5n l\u00e0 \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111i\u1ec7n th\u1ebf t\u1ea1i tab, \u00e1p l\u1ef1c l\u1eafp \u0111\u1eb7t v\u00e0 lu\u1ed3ng kh\u00ed qua b\u1ed9 t\u1ea3n nhi\u1ec7t. Thay t\u1ea5m \u0111\u1ec7m kh\u00f4ng th\u1ec3 kh\u1eafc ph\u1ee5c t\u00ecnh tr\u1ea1ng h\u1ed9p k\u00edn kh\u00f4ng c\u00f3 \u0111\u01b0\u1eddng tho\u00e1t nhi\u1ec7t.<\/p>\n\n\n\n

    Trong vi\u1ec5n th\u00f4ng, h\u1ec7 th\u1ed1ng ph\u1ee5 tr\u1ee3 tr\u00ean xe \u0111i\u1ec7n v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t kh\u00e1c<\/strong>, kho\u1ea3ng c\u00e1ch gi\u1eefa bo m\u1ea1ch v\u00e0 v\u1ecf c\u00f3 th\u1ec3 thay \u0111\u1ed5i nhi\u1ec1u h\u01a1n so v\u1edbi \u1edf giao di\u1ec7n tab l\u1eafp b\u1eb1ng v\u00edt. T\u1ea5m \u0111\u1ec7m khe m\u1ec1m c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi \u1ee9ng d\u1ee5ng n\u00e0y. T\u1ea5m \u0111\u1ec7m v\u1eabn c\u00f3 th\u1ec3 c\u1ea7n kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n, nh\u01b0ng kh\u00f4ng n\u00ean \u00e1p d\u1ee5ng c\u00f9ng y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 d\u00e0y ho\u1eb7c \u00e1p l\u1ef1c nh\u01b0 v\u1edbi t\u1ea5m c\u00e1ch \u0111i\u1ec7n m\u1ecfng cho transistor.<\/p>\n\n\n\n

    B\u1ed9 x\u1eed l\u00fd ho\u1eb7c chip hi\u1ec7u n\u0103ng cao c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t c\u1ee5m t\u1ea3n nhi\u1ec7t ho\u00e0n to\u00e0n kh\u00e1c, g\u1ed3m n\u1eafp v\u1ecf chip, keo t\u1ea3n nhi\u1ec7t ho\u1eb7c v\u1eadt li\u1ec7u chuy\u1ec3n pha, t\u1ea5m ph\u00e2n t\u00e1n nhi\u1ec7t v\u00e0 c\u01a1 c\u1ea5u gi\u1eef c\u1ed1 \u0111\u1ecbnh. Vi\u1ec7c \u0111\u00f3 l\u00e0 IC kh\u00f4ng \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c c\u1ea7n \u0111\u1eb7t ri\u00eang m\u1ed9t mi\u1ebfng \u0111\u1ec7m silicone b\u00ean d\u01b0\u1edbi n\u1eafp chip. \u0110i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf v\u1ecf chip v\u00e0 thi\u1ebft k\u1ebf nhi\u1ec7t.<\/p>\n\n\n\n

    \"mi\u1ebfng<\/figure>\n\n\n\n

    N\u1ebfu IC v\u1eabn qu\u00e1 nhi\u1ec7t, h\u00e3y ki\u1ec3m tra m\u1ed1i ti\u1ebfp x\u00fac tr\u01b0\u1edbc khi mua mi\u1ebfng \u0111\u1ec7m c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t W\/m\u00b7K cao h\u01a1n<\/h2>\n\n\n\n

    Gi\u00e1 tr\u1ecb \u0111\u1ed9 d\u1eabn nhi\u1ec7t \u0111\u01b0\u1ee3c n\u00eau n\u1ed5i b\u1eadt l\u00e0 m\u1ed9t \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u, th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng W\/m\u00b7K<\/strong>. \u0110i\u1ec1u th\u1ef1c s\u1ef1 c\u1ea7n quan t\u00e2m l\u00e0 m\u1ee9c t\u0103ng nhi\u1ec7t \u0111\u1ed9 do l\u1edbp ti\u1ebfp x\u00fac sau khi l\u1eafp \u0111\u1eb7t<\/strong> g\u00e2y ra. \u0110\u1ed9 d\u00e0y mi\u1ebfng \u0111\u1ec7m, \u00e1p l\u1ef1c v\u00e0 \u0111\u1ed9 ti\u1ebfp x\u00fac \u1edf c\u1ea3 hai b\u1ec1 m\u1eb7t \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft qu\u1ea3 \u0111\u00f3. Gi\u00e1 tr\u1ecb Ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n nhi\u1ec7t ASTM D5470-17(2024)<\/a> \u0111o tr\u1edf kh\u00e1ng nhi\u1ec7t v\u00e0 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn \u0111\u1ed9 d\u1eabn nhi\u1ec7t bi\u1ec3u ki\u1ebfn c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u n\u00e0y. Khi so s\u00e1nh hai t\u1ea5m, c\u1ea7n ki\u1ec3m tra xem c\u00e1c gi\u00e1 tr\u1ecb tr\u1edf kh\u00e1ng c\u00f3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong \u0111i\u1ec1u ki\u1ec7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1ec1 \u0111\u1ed9 d\u00e0y, nhi\u1ec7t \u0111\u1ed9, t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t v\u00e0 \u00e1p su\u1ea5t hay kh\u00f4ng. HAKTAK c\u0169ng gi\u1ea3i th\u00edch \u0111\u1ed9 d\u1eabn nhi\u1ec7t so v\u1edbi tr\u1edf kh\u00e1ng nhi\u1ec7t<\/a> chi ti\u1ebft h\u01a1n.<\/p>\n\n\n\n

    Tri\u1ec7u ch\u1ee9ng<\/strong><\/th>Nh\u1eefng y\u1ebfu t\u1ed1 c\u1ea7n ki\u1ec3m tra tr\u01b0\u1edbc ti\u00ean<\/strong><\/th>M\u1ed9t ph\u00e9p th\u1eed h\u1eefu \u00edch cho bi\u1ebft \u0111i\u1ec1u g\u00ec<\/strong><\/th><\/tr>
    Thi\u1ebft b\u1ecb n\u00f3ng h\u01a1n sau khi thay t\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t<\/td>\u0110\u1ed9 d\u00e0y sau khi n\u00e9n, \u0111\u1ed9 c\u1ee9ng, m\u1ee9c \u0111\u1ed9 ti\u1ebfp x\u00fac b\u1ec1 m\u1eb7t<\/td>Li\u1ec7u t\u1ea5m \u0111\u1ec7m m\u1edbi c\u00f3 \u00e1p s\u00e1t \u0111\u01b0\u1ee3c v\u1edbi l\u1ef1c \u00e9p hi\u1ec7n c\u00f3 hay kh\u00f4ng<\/td><\/tr>
    \u0110i\u1ec3m n\u00f3ng \u1edf m\u1ed9t g\u00f3c<\/td>\u0110\u1ed9 ph\u1eb3ng c\u1ee7a tai g\u00e1, \u0111\u1ed9 cong v\u00eanh c\u1ee7a t\u1ea3n nhi\u1ec7t, \u0111\u1ed9 c\u0103n ch\u1ec9nh c\u1ee7a t\u1ea5m \u0111\u1ec7m<\/td>D\u1ea5u v\u1ebft ti\u1ebfp x\u00fac ho\u1eb7c b\u1ea3n \u0111\u1ed3 nhi\u1ec7t \u0111o \u0111\u01b0\u1ee3c<\/td><\/tr>
    Ti\u1ebfp x\u00fac t\u1ed1t nh\u01b0ng to\u00e0n b\u1ed9 kh\u1ed1i t\u1ea3n nhi\u1ec7t \u0111\u1ec1u n\u00f3ng<\/td>Lu\u1ed3ng kh\u00f4ng kh\u00ed, h\u01b0\u1edbng c\u1ee7a c\u00e1c l\u00e1 t\u1ea3n nhi\u1ec7t, nhi\u1ec7t \u0111\u1ed9 trong v\u1ecf<\/td>Li\u1ec7u kh\u1ea3 n\u0103ng l\u00e0m m\u00e1t t\u1eeb kh\u1ed1i t\u1ea3n nhi\u1ec7t ra kh\u00f4ng kh\u00ed c\u00f3 ph\u1ea3i l\u00e0 \u0111i\u1ec3m ngh\u1ebdn hay kh\u00f4ng<\/td><\/tr>
    L\u1ed7i \u0111i\u1ec7n ch\u1eadp ch\u1eddn<\/td>\u1ed0ng l\u00f3t v\u00edt, m\u1ee9c \u0111\u1ed9 che ph\u1ee7 c\u1ee7a \u0111\u1ec7m, ba via, v\u1ebft c\u1eaft xuy\u00ean<\/td>V\u1ecb tr\u00ed \u0111\u01b0\u1eddng c\u00e1ch \u0111i\u1ec7n sau l\u1eafp r\u00e1p b\u1ecb m\u1ea5t t\u00e1c d\u1ee5ng<\/td><\/tr>
    Nhi\u1ec7t \u0111\u1ed9 sai l\u1ec7ch d\u1ea7n sau nhi\u1ec1u th\u00e1ng<\/td>Suy gi\u1ea3m l\u1ef1c k\u1eb9p, x\u00ea d\u1ecbch, l\u00e3o h\u00f3a, nhi\u1ec5m b\u1ea9n<\/td>K\u1ebft qu\u1ea3 tr\u01b0\u1edbc v\u00e0 sau c\u00e1c ph\u00e9p th\u1eed \u1ee9ng su\u1ea5t li\u00ean quan<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Gi\u1ea3 s\u1eed mi\u1ebfng \u0111\u1ec7m A m\u1ecfng v\u00e0 c\u00f3 h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t 2 W\/m\u00b7K, c\u00f2n mi\u1ebfng \u0111\u1ec7m B d\u00e0y g\u1ea5p \u0111\u00f4i v\u00e0 c\u00f3 h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t 3 W\/m\u00b7K. B\u1ecf qua \u1ea3nh h\u01b0\u1edfng c\u1ee7a ti\u1ebfp x\u00fac<\/strong> v\u00e0 gi\u1eef nguy\u00ean di\u1ec7n t\u00edch, tr\u1edf nhi\u1ec7t kh\u1ed1i c\u1ee7a ch\u00fang t\u1ef7 l\u1ec7 v\u1edbi \u0111\u1ed9 d\u00e0y chia cho k: A t\u1ef7 l\u1ec7 v\u1edbi 1\/2; B t\u1ef7 l\u1ec7 v\u1edbi 2\/3. Trong ph\u00e9p so s\u00e1nh \u0111\u01a1n gi\u1ea3n h\u00f3a n\u00e0y, h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t l\u1edbn h\u01a1n c\u1ee7a B kh\u00f4ng t\u1ea1o ra \u01b0u th\u1ebf. Tuy nhi\u00ean, n\u1ebfu A qu\u00e1 c\u1ee9ng n\u00ean kh\u00f4ng th\u1ec3 ti\u1ebfp x\u00fac t\u1ed1t v\u1edbi thanh ray b\u1ecb cong v\u00eanh, k\u1ebft qu\u1ea3 sau khi l\u1eafp r\u00e1p c\u00f3 th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c. V\u00ec v\u1eady, c\u1ea7n ki\u1ec3m tra tr\u1edf kh\u00e1ng nhi\u1ec7t sau khi l\u1eafp \u0111\u1eb7t v\u00e0 nhi\u1ec7t \u0111\u1ed9 thi\u1ebft b\u1ecb.<\/p>\n\n\n\n

    \"mi\u1ebfng<\/figure>\n\n\n\n

    B\u1ea3n y\u00eau c\u1ea7u g\u1eedi nh\u00e0 cung c\u1ea5p c\u1ea7n c\u00f3 nh\u1eefng d\u1eef li\u1ec7u v\u00e0 ti\u00eau chu\u1ea9n n\u00e0o?<\/h2>\n\n\n\n

    Y\u00eau c\u1ea7u cung c\u1ea5p c\u1ea5p s\u1ea3n ph\u1ea9m v\u00e0 c\u1ea5u t\u1ea1o ch\u00ednh x\u00e1c<\/strong>, bao g\u1ed3m m\u1ecdi l\u1edbp s\u1ee3i th\u1ee7y tinh, m\u00e0ng polyimide, l\u1edbp keo d\u00e1n v\u00e0 h\u00ecnh d\u1ea1ng c\u1eaft. Y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p cung c\u1ea5p dung sai \u0111\u1ed9 d\u00e0y v\u00e0, khi \u00e1p d\u1ee5ng, \u0111\u1ed9 d\u00e0y sau khi n\u00e9n \u1edf t\u1ea3i l\u1eafp \u0111\u1eb7t th\u1ef1c t\u1ebf. \u0110\u1ec3 so s\u00e1nh \u0111\u1eb7c t\u00ednh nhi\u1ec7t, h\u00e3y ghi l\u1ea1i ph\u01b0\u01a1ng ph\u00e1p th\u1eed, \u00e1p su\u1ea5t v\u00e0 \u0111\u1ed9 d\u00e0y m\u1eabu d\u00f9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh tr\u1edf kh\u00e1ng nhi\u1ec7t \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1. \u0110\u1ec3 so s\u00e1nh \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n, h\u00e3y ghi l\u1ea1i \u0111\u1ed9 d\u00e0y m\u1eabu th\u1eed, ph\u01b0\u01a1ng ph\u00e1p th\u1eed \u0111i\u1ec7n m\u00f4i, \u0111i\u1ec7n c\u1ef1c, \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd m\u1eabu v\u00e0 lo\u1ea1i \u0111i\u1ec7n \u00e1p.<\/p>\n\n\n\n

    ASTM D5470 li\u00ean quan \u0111\u1ebfn kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t. ASTM D149 quy \u0111\u1ecbnh ph\u00e9p \u0111\u00e1nh th\u1ee7ng \u0111i\u1ec7n m\u00f4i b\u1eb1ng \u0111i\u1ec7n xoay chi\u1ec1u trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n x\u00e1c \u0111\u1ecbnh. UL 94<\/strong> c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n tr\u00ean b\u1ea3ng d\u1eef li\u1ec7u c\u1ee7a t\u1ea5m v\u1eadt li\u1ec7u, nh\u01b0ng ti\u00eau chu\u1ea9n n\u00e0y ph\u00e2n lo\u1ea1i \u0111\u1eb7c t\u00ednh ch\u00e1y; ti\u00eau chu\u1ea9n kh\u00f4ng ch\u1ee9ng minh r\u1eb1ng IC sau khi l\u1eafp \u0111\u01b0\u1ee3c c\u00e1ch \u0111i\u1ec7n. H\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t linh ki\u1ec7n, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u01b0\u1edbng d\u1eabn c\u1ee7a onsemi, c\u00f3 th\u1ec3 ch\u1ec9 d\u1eabn c\u00e1ch l\u1eafp b\u1eb1ng k\u1eb9p ho\u1eb7c v\u00edt \u0111\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a ch\u00ednh h\u1ecd<\/em> c\u00e1c d\u00f2ng v\u1ecf linh ki\u1ec7n. H\u00e3y ki\u1ec3m tra b\u1ea3n v\u1ebd ch\u00ednh x\u00e1c c\u1ee7a linh ki\u1ec7n tr\u01b0\u1edbc khi x\u00e1c \u0111\u1ecbnh ph\u1ea7n c\u1ee9ng ho\u1eb7c l\u1ef1c t\u00e1c d\u1ee5ng.<\/p>\n\n\n\n

    Cu\u1ed1i c\u00f9ng, h\u00e3y xem x\u00e9t m\u00f4i tr\u01b0\u1eddng \u0111\u1eb7c th\u00f9 c\u1ee7a t\u1eebng l\u0129nh v\u1ef1c. B\u1ed9 ngu\u1ed3n ph\u00f2ng th\u00ed nghi\u1ec7m, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i vi\u1ec5n th\u00f4ng ngo\u00e0i tr\u1eddi v\u00e0 m\u00f4-\u0111un \u0111i\u1ec1u khi\u1ec3n EV kh\u00f4ng ch\u1ecbu c\u00f9ng \u0111i\u1ec1u ki\u1ec7n v\u1ec1 \u0111\u1ed9 \u1ea9m, \u0111\u1ed9 rung ho\u1eb7c chu k\u1ef3 v\u1eadn h\u00e0nh. Vi\u1ec7c th\u1ea9m \u0111\u1ecbnh ph\u1ea3i ph\u1ea3n \u00e1nh \u0111\u00fang tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf. c\u1ee7a HAKTAK l\u1ef1a ch\u1ecdn v\u00e0 ki\u1ec3m tra v\u1eadt li\u1ec7u<\/a> trang n\u00e0y l\u00e0 n\u01a1i \u0111\u1ec3 s\u1eafp x\u1ebfp n\u1ed9i dung trao \u0111\u1ed5i v\u1edbi nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n

    K\u1ebft lu\u1eadn<\/h2>\n\n\n\n

    T\u1ea5m \u0111\u1ec7m silicone trong c\u1ee5m IC l\u00e0 m\u1ed9t t\u1ea5m v\u1eadt li\u1ec7u giao di\u1ec7n nhi\u1ec7t ri\u00eang bi\u1ec7t<\/strong> \u0111\u01b0\u1ee3c \u0111\u1eb7t gi\u1eefa m\u1eb7t ngo\u00e0i c\u1ee7a v\u1ecf linh ki\u1ec7n v\u00e0 b\u1ec1 m\u1eb7t l\u00e0m m\u00e1t. Khi ch\u1ecdn \u0111\u00fang ch\u1ee7ng lo\u1ea1i v\u00e0 c\u1ea5u h\u00ecnh l\u1eafp gh\u00e9p, t\u1ea5m \u0111\u1ec7m gi\u00fap truy\u1ec1n nhi\u1ec7t \u0111\u1ed3ng th\u1eddi c\u00e1ch \u0111i\u1ec7n b\u1ec1 m\u1eb7t mang \u0111i\u1ec7n v\u1edbi b\u1ed9 t\u1ea3n nhi\u1ec7t. Tuy nhi\u00ean, ch\u1ec9 ri\u00eang t\u1ea5m \u0111\u1ec7m kh\u00f4ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c m\u1ecdi v\u1ea5n \u0111\u1ec1: v\u1ecf linh ki\u1ec7n, v\u00edt, \u00e1p l\u1ef1c ti\u1ebfp x\u00fac, \u0111\u1ed9 d\u00e0y t\u1ea5m \u0111\u1ec7m v\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t ph\u00eda sau \u0111\u1ec1u c\u00f3 \u1ea3nh h\u01b0\u1edfng. Tr\u01b0\u1edbc ti\u00ean, h\u00e3y x\u00e1c \u0111\u1ecbnh ranh gi\u1edbi c\u00e1ch \u0111i\u1ec7n, sau \u0111\u00f3 ki\u1ec3m tra \u0111\u01b0\u1eddng truy\u1ec1n nhi\u1ec7t trong tr\u1ea1ng th\u00e1i l\u1eafp \u0111\u1eb7t th\u1ef1c t\u1ebf. V\u1ec1 l\u00fd thuy\u1ebft th\u00ec \u0111\u01a1n gi\u1ea3n. Trong th\u1ef1c t\u1ebf, c\u00e1ch l\u00e0m n\u00e0y \u0111\u00e1ng tin c\u1eady h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n

    C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n

    T\u1ea5m \u0111\u1ec7m sil pad c\u00f3 gi\u1ed1ng t\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t silicone kh\u00f4ng?<\/h3>\n\n\n\n

    C\u00e1c t\u00ean g\u1ecdi n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng kh\u00f4ng ch\u1eb7t ch\u1ebd. SIL PAD\u00ae<\/strong> l\u00e0 t\u00ean d\u00f2ng s\u1ea3n ph\u1ea9m c\u1ee7a Henkel. T\u1ea5m \u0111\u1ec7m t\u1ea3n nhi\u1ec7t silicone l\u00e0 m\u1ed9t nh\u00f3m v\u1eadt li\u1ec7u r\u1ed9ng h\u01a1n, v\u00e0 kh\u00f4ng ph\u1ea3i t\u1ea5m \u0111\u1ec7m n\u00e0o thu\u1ed9c nh\u00f3m n\u00e0y c\u0169ng c\u00f3 c\u00f9ng lo\u1ea1i gia c\u01b0\u1eddng ho\u1eb7c \u0111\u1ecbnh m\u1ee9c \u0111i\u1ec7n m\u00f4i. H\u00e3y ki\u1ec3m tra ch\u00ednh x\u00e1c c\u1ea5u t\u1ea1o thay v\u00ec ch\u1ec9 d\u1ef1a v\u00e0o t\u00ean g\u1ecdi th\u00f4ng d\u1ee5ng.<\/p>\n\n\n\n

    C\u00f3 ph\u1ea3i m\u1ecdi IC \u0111\u1ec1u c\u1ea7n t\u1ea5m \u0111\u1ec7m c\u00e1ch \u0111i\u1ec7n gi\u1eefa linh ki\u1ec7n v\u00e0 b\u1ed9 t\u1ea3n nhi\u1ec7t kh\u00f4ng?<\/h3>\n\n\n\n

    Kh\u00f4ng. \u0110i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i v\u1ecf linh ki\u1ec7n, \u0111i\u1ec7n th\u1ebf c\u1ee7a tab, \u0111\u01b0\u1eddng truy\u1ec1n nhi\u1ec7t v\u00e0 \u0111i\u1ec7n \u00e1p c\u1ee7a b\u1ed9 t\u1ea3n nhi\u1ec7t. M\u1ed9t s\u1ed1 v\u1ecf \u0111\u01b0\u1ee3c c\u00e1ch \u0111i\u1ec7n b\u00ean trong; m\u1ed9t s\u1ed1 s\u1eed d\u1ee5ng l\u1edbp \u0111\u1ed3ng PCB v\u00e0 c\u00e1c l\u1ed7 via \u0111\u1ec3 t\u1ea3n nhi\u1ec7t. Vi\u1ec7c b\u1ed5 sung m\u1ed9t t\u1ea5m \u0111\u1ec7m c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf nhi\u1ec7t m\u00e0 kh\u00f4ng mang l\u1ea1i l\u1ee3i \u00edch c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n

    Pad t\u1ea3n nhi\u1ec7t l\u1ed9 thi\u00ean \u1edf m\u1eb7t d\u01b0\u1edbi c\u1ee7a QFN c\u00f3 gi\u1ed1ng v\u1edbi m\u1ed9t t\u1ea5m \u0111\u1ec7m silicone ri\u00eang bi\u1ec7t kh\u00f4ng?<\/h3>\n\n\n\n

    Chi ti\u1ebft QFN l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a v\u1ecf linh ki\u1ec7n v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c h\u00e0n v\u00e0o pad PCB \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh. M\u1ed9t t\u1ea5m \u0111\u1ec7m silicone ri\u00eang bi\u1ec7t \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u00ean ngo\u00e0i<\/strong> v\u1ecf linh ki\u1ec7n, t\u1ea1i b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac c\u01a1 kh\u00ed ph\u1ee5c v\u1ee5 t\u1ea3n nhi\u1ec7t. H\u00e3y tu\u00e2n th\u1ee7 h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t linh ki\u1ec7n v\u1ec1 b\u1ed1 tr\u00ed pad h\u00e0n v\u00e0 y\u00eau c\u1ea7u \u0111i\u1ec7n.<\/p>\n\n\n\n

    T\u00f4i c\u00f3 th\u1ec3 d\u00f9ng m\u1ee1 t\u1ea3n nhi\u1ec7t thay cho t\u1ea5m \u0111\u1ec7m silicone tr\u00ean tai g\u00e1 mang \u0111i\u1ec7n kh\u00f4ng?<\/h3>\n\n\n\n

    Kh\u00f4ng \u0111\u01b0\u1ee3c m\u1eb7c \u0111\u1ecbnh r\u1eb1ng m\u1ee1 t\u1ea3n nhi\u1ec7t c\u00f3 th\u1ec3 b\u1ea3o \u0111\u1ea3m kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n c\u1ea7n thi\u1ebft gi\u1eefa tai g\u00e1 mang \u0111i\u1ec7n v\u00e0 b\u1ed9 t\u1ea3n nhi\u1ec7t b\u1eb1ng kim lo\u1ea1i. N\u1ebfu c\u1ea7n c\u00e1ch \u0111i\u1ec7n, h\u00e3y s\u1eed d\u1ee5ng k\u1ebft c\u1ea5u c\u00e1ch \u0111i\u1ec7n v\u00e0 ph\u1ee5 ki\u1ec7n l\u1eafp \u0111\u1eb7t \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 ph\u00f9 h\u1ee3p, ho\u1eb7c m\u1ed9t thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng kh\u00e1c \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t.<\/p>\n\n\n\n

    T\u00f4i c\u00f3 c\u1ea7n d\u00f9ng v\u00f2ng \u0111\u1ec7m c\u00f3 vai v\u1edbi t\u1ea5m \u0111\u1ec7m silicone TO-220 kh\u00f4ng?<\/h3>\n\n\n\n

    N\u1ebfu tai g\u00e1 mang \u0111i\u1ec7n \u0111\u01b0\u1ee3c b\u1eaft ch\u1eb7t v\u00e0o b\u1ed9 t\u1ea3n nhi\u1ec7t c\u1ea7n duy tr\u00ec c\u00e1ch \u0111i\u1ec7n, \u0111\u01b0\u1eddng \u0111i c\u1ee7a v\u00edt c\u00f3 th\u1ec3 c\u1ea7n \u1ed1ng l\u00f3t c\u00e1ch \u0111i\u1ec7n. Lo\u1ea1i v\u1ecf linh ki\u1ec7n, v\u00edt v\u00e0 b\u1ea3n v\u1ebd l\u1eafp \u0111\u1eb7t c\u1ee5 th\u1ec3 s\u1ebd quy\u1ebft \u0111\u1ecbnh ph\u1ee5 ki\u1ec7n c\u1ea7n d\u00f9ng. T\u1ea5m \u0111\u1ec7m ch\u1ec9 che ph\u1ee7 b\u1ec1 m\u1eb7t ph\u1eb3ng r\u1ed9ng.<\/p>\n\n\n\n

    T\u00f4i c\u00f3 n\u00ean b\u00f4i keo t\u1ea3n nhi\u1ec7t l\u00ean c\u1ea3 hai m\u1eb7t c\u1ee7a t\u1ea5m \u0111\u1ec7m silicone kh\u00f4ng?<\/h3>\n\n\n\n

    Ch\u1ec9 s\u1eed d\u1ee5ng khi nh\u00e0 cung c\u1ea5p v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n c\u1ee5 th\u1ec3 v\u00e0 thi\u1ebft k\u1ebf l\u1eafp \u0111\u1eb7t y\u00eau c\u1ea7u. M\u1ed9t s\u1ed1 mi\u1ebfng \u0111\u1ec7m \u0111\u1ecbnh h\u00ecnh s\u1eb5n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u1eafp \u0111\u1eb7t s\u1ea1ch v\u00e0 kh\u00f4ng d\u00ednh m\u1ee1. H\u00e3y ki\u1ec3m tra \u0111\u1ed9 ti\u1ebfp x\u00fac v\u00e0 nhi\u1ec7t \u0111\u1ed9 thay v\u00ec b\u00f4i keo theo th\u00f3i quen.<\/p>\n\n\n\n

    Mi\u1ebfng \u0111\u1ec7m silicone cho IC c\u00f4ng su\u1ea5t n\u00ean d\u00e0y bao nhi\u00eau?<\/h3>\n\n\n\n

    Kh\u00f4ng c\u00f3 m\u1ed9t \u0111\u1ed9 d\u00e0y duy nh\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi m\u1ecdi IC. H\u00e3y l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean khe h\u1edf th\u1ef1c t\u1ebf, y\u00eau c\u1ea7u v\u1ec1 l\u1edbp c\u00e1ch \u0111i\u1ec7n, l\u1ef1c \u00e9p, \u0111\u1ed9 ph\u1eb3ng c\u1ee7a v\u1ecf linh ki\u1ec7n v\u00e0 tr\u1edf kh\u00e1ng nhi\u1ec7t \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m nghi\u1ec7m. \u0110\u1ed1i v\u1edbi tab \u0111\u01b0\u1ee3c k\u1eb9p, l\u00e1 \u0111\u1ec7m gia c\u01b0\u1eddng m\u1ecfng v\u00e0 mi\u1ebfng \u0111\u1ec7m l\u1ea5p khe d\u00e0y \u0111\u00e1p \u1ee9ng hai m\u1ee5c \u0111\u00edch kh\u00e1c nhau.<\/p>\n\n\n\n

    Mi\u1ebfng \u0111\u1ec7m nhi\u1ec7t b\u1eb1ng graphite c\u00f3 th\u1ec3 c\u00e1ch ly \u0111i\u1ec7n cho IC kh\u00f4ng?<\/h3>\n\n\n\n

    Nhi\u1ec1u s\u1ea3n ph\u1ea9m g\u1ed1c graphite c\u00f3 t\u00ednh d\u1eabn \u0111i\u1ec7n. Kh\u00f4ng bao gi\u1edd d\u1ef1a v\u00e0o graphite \u0111\u1ec3 c\u00e1ch ly \u0111i\u1ec7n n\u1ebfu kh\u00f4ng c\u00f3 t\u00e0i li\u1ec7u r\u00f5 r\u00e0ng cho c\u1ea5p v\u1eadt li\u1ec7u c\u1ee5 th\u1ec3 v\u00e0 k\u1ebft qu\u1ea3 th\u1ea9m \u0111\u1ecbnh l\u1eafp r\u00e1p. \u0110\u1ed9 d\u1eabn nhi\u1ec7t cao kh\u00f4ng cho bi\u1ebft \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

    Th\u00f4ng s\u1ed1 n\u00e0o d\u1ef1 \u0111o\u00e1n nhi\u1ec7t \u0111\u1ed9 IC ch\u00ednh x\u00e1c h\u01a1n: W\/m\u00b7K hay tr\u1edf kh\u00e1ng nhi\u1ec7t?<\/h3>\n\n\n\n

    Tr\u1edf kh\u00e1ng nhi\u1ec7t \u0111\u01b0\u1ee3c \u0111o \u1edf \u0111\u1ed9 d\u00e0y v\u00e0 \u00e1p su\u1ea5t ph\u00f9 h\u1ee3p ph\u1ea3n \u00e1nh \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf t\u1ea1i b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac s\u00e1t h\u01a1n so v\u1edbi vi\u1ec7c ch\u1ec9 d\u1ef1a v\u00e0o \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u kh\u1ed1i. D\u00f9 v\u1eady, nhi\u1ec7t \u0111\u1ed9 m\u1ed1i n\u1ed1i c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t tr\u1edf c\u1ee7a v\u1ecf linh ki\u1ec7n, c\u00f4ng su\u1ea5t t\u1ed5n hao, thi\u1ebft k\u1ebf b\u1ed9 t\u1ea3n nhi\u1ec7t v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

    T\u00f4i c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng mi\u1ebfng \u0111\u1ec7m silicone sau khi th\u00e1o b\u1ed9 t\u1ea3n nhi\u1ec7t kh\u00f4ng?<\/h3>\n\n\n\n

    Kh\u00f4ng n\u00ean m\u1eb7c \u0111\u1ecbnh r\u1eb1ng c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng. T\u1ea5m \u0111\u1ec7m sau khi th\u00e1o c\u00f3 th\u1ec3 b\u1ecb gi\u00e3n, r\u00e1ch, b\u00e1m m\u1ea3nh v\u1ee5n, x\u00ea d\u1ecbch ho\u1eb7c thay \u0111\u1ed5i kh\u1ea3 n\u0103ng ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ec1 m\u1eb7t. H\u00e3y tu\u00e2n theo h\u01b0\u1edbng d\u1eabn s\u1eeda ch\u1eefa c\u1ee5 th\u1ec3 c\u1ee7a s\u1ea3n ph\u1ea9m; n\u1ebfu t\u1ea5m \u0111\u1ec7m b\u1ecb h\u01b0 h\u1ecfng ho\u1eb7c kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n c\u00f3 vai tr\u00f2 quan tr\u1ecdng, h\u00e3y thay t\u1ea5m \u0111\u1ec7m v\u00e0 ki\u1ec3m tra l\u1ea1i m\u1ed1i gh\u00e9p sau khi l\u1eafp r\u00e1p.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

    You open a power supply and find a thin, slightly rubbery sheet between a voltage regulator and its metal heat […]<\/p>\n","protected":false},"author":4,"featured_media":2399,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2395","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-haktak-blog"],"_links":{"self":[{"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/posts\/2395","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/comments?post=2395"}],"version-history":[{"count":1,"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/posts\/2395\/revisions"}],"predecessor-version":[{"id":2404,"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/posts\/2395\/revisions\/2404"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/media\/2399"}],"wp:attachment":[{"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/media?parent=2395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/categories?post=2395"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/haktak.com\/vi\/wp-json\/wp\/v2\/tags?post=2395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}