{"id":674479,"date":"2024-11-09T03:11:55","date_gmt":"2024-11-09T02:11:55","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=674479"},"modified":"2024-11-09T03:11:55","modified_gmt":"2024-11-09T02:11:55","slug":"cach-keo-tan-nhiet-cai-thien-dan-nhiet","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cach-keo-tan-nhiet-cai-thien-dan-nhiet\/","title":{"rendered":"C\u00e1ch keo t\u1ea3n nhi\u1ec7t c\u1ea3i thi\u1ec7n d\u1eabn nhi\u1ec7t"},"content":{"rendered":"<p class=\"sidekick\">C\u00e1ch keo t\u1ea3n nhi\u1ec7t c\u1ea3i thi\u1ec7n d\u1eabn nhi\u1ec7t: T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch keo t\u1ea3n nhi\u1ec7t gi\u00fap t\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed hi\u1ec7u qu\u1ea3.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cach_keo_tan_nhiet_cai_thien_dan_nhiet.png\" alt=\"C\u00e1ch keo t\u1ea3n nhi\u1ec7t c\u1ea3i thi\u1ec7n d\u1eabn nhi\u1ec7t\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u00e1ch Keo T\u1ea3n Nhi\u1ec7t C\u1ea3i Thi\u1ec7n D\u1eabn Nhi\u1ec7t<\/h2>\n<p>Keo t\u1ea3n nhi\u1ec7t, c\u00f2n g\u1ecdi l\u00e0 m\u1ee1 d\u1eabn nhi\u1ec7t, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t chuy\u00ean d\u1ee5ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n d\u1eabn nhi\u1ec7t gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn trong h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed. Ch\u00fang \u0111\u00e1ng tin c\u1eady trong vi\u1ec7c gi\u1eef cho c\u00e1c linh ki\u1ec7n nh\u01b0 CPU, GPU v\u00e0 c\u00e1c m\u1ea1ch \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng trong ng\u01b0\u1ee1ng nhi\u1ec7t \u0111\u1ed9 an to\u00e0n.<\/p>\n<h2>Nguy\u00ean l\u00fd D\u1eabn Nhi\u1ec7t<\/h2>\n<p>Tr\u01b0\u1edbc h\u1ebft, ch\u00fang ta c\u1ea7n hi\u1ec3u v\u1ec1 nguy\u00ean l\u00fd d\u1eabn nhi\u1ec7t. D\u1eabn nhi\u1ec7t l\u00e0 qu\u00e1 tr\u00ecnh truy\u1ec1n nhi\u1ec7t n\u0103ng t\u1eeb m\u1ed9t v\u1eadt c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao sang v\u1eadt c\u00f3 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n. C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n cho qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0:<\/p>\n<p><strong>Q = k * A * \\(\\frac{T1 &#8211; T2}{d}\\)<\/strong><\/p>\n<p>Trong \u0111\u00f3, Q l\u00e0 l\u01b0\u1ee3ng nhi\u1ec7t truy\u1ec1n, k l\u00e0 h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u, A l\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t, T1 v\u00e0 T2 l\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u1ea1i hai \u0111i\u1ec3m v\u00e0 d l\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa ch\u00fang.<\/p>\n<h2>T\u1ea1i Sao C\u1ea7n Keo T\u1ea3n Nhi\u1ec7t?<\/h2>\n<p>Khi b\u1ed9 x\u1eed l\u00fd v\u00e0 c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed ho\u1ea1t \u0111\u1ed9ng, ch\u00fang sinh ra nhi\u1ec7t. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t, n\u00f3 c\u00f3 th\u1ec3 g\u00e2y ra h\u01b0 h\u1ea1i cho linh ki\u1ec7n v\u00e0 gi\u1ea3m hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng. \u0110\u00e2y l\u00e0 l\u00fd do h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t v\u00e0 keo t\u1ea3n nhi\u1ec7t r\u1ea5t quan tr\u1ecdng.<\/p>\n<p>Keo t\u1ea3n nhi\u1ec7t l\u1ea5p \u0111\u1ea7y c\u00e1c k\u1ebd h\u1edf c\u1ef1c nh\u1ecf gi\u1eefa b\u1ec1 m\u1eb7t c\u1ee7a chip v\u00e0 t\u1ea3n nhi\u1ec7t, c\u1ea3i thi\u1ec7n s\u1ef1 ti\u1ebfp x\u00fac v\u00e0 gi\u00fap t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh truy\u1ec1n nhi\u1ec7t.<\/p>\n<h2>C\u1ea5u Tr\u00fac v\u00e0 Th\u00e0nh Ph\u1ea7n c\u1ee7a Keo T\u1ea3n Nhi\u1ec7t<\/h2>\n<ul>\n<li><strong>Ch\u1ea5t mang (Binder):<\/strong> \u0110\u00e2y l\u00e0 ph\u1ea7n t\u1ea1o n\u00ean c\u1ea5u tr\u00fac ch\u00ednh c\u1ee7a keo. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb silic ho\u1eb7c d\u1ea7u nhi\u1ec7t \u0111i\u1ec7n.<\/li>\n<li><strong>H\u1ea1t d\u1eabn nhi\u1ec7t:<\/strong> C\u00e1c h\u1ea1t n\u00e0y \u0111\u01b0\u1ee3c th\u00eam v\u00e0o \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t c\u1ee7a keo. Ch\u00fang c\u00f3 th\u1ec3 l\u00e0 h\u1ea1t kim lo\u1ea1i (nh\u01b0 nh\u00f4m, \u0111\u1ed3ng), hay h\u1ea1t g\u1ed1m (nh\u01b0 oxit kim lo\u1ea1i).<\/li>\n<\/ul>\n<h2>C\u00e1ch Keo T\u1ea3n Nhi\u1ec7t C\u1ea3i Thi\u1ec7n D\u1eabn Nhi\u1ec7t<\/h2>\n<ul>\n<li><strong>L\u1ea5p \u0111\u1ea7y c\u00e1c k\u1ebd h\u1edf:<\/strong> B\u1ec1 m\u1eb7t chip v\u00e0 t\u1ea3n nhi\u1ec7t kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng ho\u00e0n to\u00e0n ph\u1eb3ng, lu\u00f4n c\u00f3 nh\u1eefng k\u1ebd h\u1edf nh\u1ecf. Keo t\u1ea3n nhi\u1ec7t l\u1ea5p \u0111\u1ea7y nh\u1eefng k\u1ebd h\u1edf n\u00e0y, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n ti\u1ebfp x\u00fac t\u1ed1t h\u01a1n gi\u1eefa chip v\u00e0 t\u1ea3n nhi\u1ec7t.<\/li>\n<li><strong>T\u0103ng di\u1ec7n t\u00edch ti\u1ebfp x\u00fac:<\/strong> B\u1eb1ng c\u00e1ch l\u1ea5p \u0111\u1ea7y c\u00e1c kho\u1ea3ng tr\u1ed1ng, keo t\u1ea3n nhi\u1ec7t t\u0103ng di\u1ec7n t\u00edch ti\u1ebfp x\u00fac b\u1ec1 m\u1eb7t gi\u1eefa c\u00e1c v\u1eadt li\u1ec7u, gi\u00fap nhi\u1ec7t truy\u1ec1n t\u1eeb chip sang t\u1ea3n nhi\u1ec7t hi\u1ec7u qu\u1ea3 h\u01a1n.<\/li>\n<li><strong>Gi\u1ea3m nhi\u1ec7t tr\u1edf:<\/strong> Nhi\u1ec7t tr\u1edf (thermal resistance) l\u00e0 tr\u1edf l\u1ef1c l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 truy\u1ec1n nhi\u1ec7t. Keo t\u1ea3n nhi\u1ec7t l\u00e0m gi\u1ea3m nhi\u1ec7t tr\u1edf n\u00e0y, t\u1ed1i \u01b0u h\u00f3a truy\u1ec1n nhi\u1ec7t v\u00e0 gi\u1eef cho linh ki\u1ec7n m\u00e1t m\u1ebb.<\/li>\n<\/ul>\n<h2>C\u00e1ch S\u1eed D\u1ee5ng Keo T\u1ea3n Nhi\u1ec7t<\/h2>\n<p>S\u1eed d\u1ee5ng keo t\u1ea3n nhi\u1ec7t \u0111\u00fang c\u00e1ch c\u0169ng quan tr\u1ecdng kh\u00f4ng k\u00e9m. Qu\u00e1 \u00edt ho\u1eb7c qu\u00e1 nhi\u1ec1u keo c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 truy\u1ec1n nhi\u1ec7t. Th\u00f4ng th\u01b0\u1eddng, ch\u1ec9 c\u1ea7n m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf, \u0111\u1ec1u, v\u00e0 m\u1ecfng tr\u00ean b\u1ec1 m\u1eb7t chip l\u00e0 \u0111\u1ee7.<\/p>\n<ol>\n<li>L\u00e0m s\u1ea1ch b\u1ec1 m\u1eb7t chip v\u00e0 t\u1ea3n nhi\u1ec7t.<\/li>\n<li>\u0110\u1eb7t m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf keo t\u1ea3n nhi\u1ec7t v\u00e0o gi\u1eefa b\u1ec1 m\u1eb7t chip.<\/li>\n<li>D\u00f9ng \u00e1p l\u1ef1c nh\u1eb9 \u0111\u1ec1u \u0111\u1ec3 t\u1ea3n nhi\u1ec7t v\u00e0 chip ti\u1ebfp x\u00fac t\u1ed1t v\u1edbi keo.<\/li>\n<\/ol>\n<p>V\u1eady l\u00e0 ch\u00fang ta \u0111\u00e3 hi\u1ec3u s\u01a1 b\u1ed9 v\u1ec1 c\u00e1ch keo t\u1ea3n nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n d\u1eabn nhi\u1ec7t, gi\u1eef cho linh ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 b\u1ec1n b\u1ec9 h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1ch keo t\u1ea3n nhi\u1ec7t c\u1ea3i thi\u1ec7n d\u1eabn nhi\u1ec7t: T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch keo t\u1ea3n nhi\u1ec7t gi\u00fap t\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed hi\u1ec7u qu\u1ea3.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e1ch keo t\u1ea3n nhi\u1ec7t c\u1ea3i thi\u1ec7n d\u1eabn nhi\u1ec7t<\/title>\n<meta name=\"description\" content=\"C\u00e1ch keo t\u1ea3n nhi\u1ec7t c\u1ea3i thi\u1ec7n d\u1eabn nhi\u1ec7t: T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch keo t\u1ea3n nhi\u1ec7t gi\u00fap t\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed hi\u1ec7u qu\u1ea3.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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