導熱墊
導熱墊是電腦或电子学中用到的裝置,是固體材料(石蜡或矽氧樹脂)事先成形的方形或長方形薄片,一般會放在散热片下方,讓要散熱的設備(像中央处理器或集成电路)可以進行热传导,將熱帶到铝或銅材質的散熱片。導熱墊及導熱化合物是用來填補在熱傳導過程中,固體和固體表面形成的熱接面空隙[1]。若固體表面光滑平坦,應該就不需要導熱墊了。導熱墊一般在室溫下是硬的,但在高溫下會變軟,因此可以填補固體之間的空隙[1]。
導熱墊可以代替散熱膏作為热界面材料。有些AMD及Intel的中央處理器在散熱片下方也有導熱墊,好處是比較乾淨,比較容易安裝。不過導熱墊的導熱效果不如散熱膏[2]。
參考資料
- AMD - Thermal Interface Material Comparison: Thermal Pads vs. Thermal Grease (页面存档备份,存于) Accessed 23 February 2014
- . HWlab website. November 17, 2009 [22 November 2013]. (原始内容存档于2020-07-28). Please note that HWlab's tests were conducted in an unusual scenario: using an overclocked PC with CPU throttling disabled.
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