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    • 1. 发明公开
    • Compliant thermally conductive compound
    • WeichewärmeleistungsfähigeZuammensetzung。
    • EP0342141A2
    • 1989-11-15
    • EP89480042.4
    • 1989-03-14
    • International Business Machines Corporation
    • Anderson, Herbert Rudolph, Jr.Booth, Richard BentonDavid, Lawrence DanielNeisser, Mark OliverSachdev, Harbans SinghTakacs, Mark Anthony
    • C09K5/00
    • C09K5/08F28F13/00F28F2013/006H01L2224/16225H01L2224/73253
    • A compliant thermally conductive, preferably dielectric, compound that enhances the power dissipation capability of high-powered electrical components such as bipolar VLSI semi-conductor chips. The compound has chemically stable thermal conduction and viscosity proper­ties, is not subject to phase separation during use and may be applied in small gaps to maximize thermal conduc­tion. The compound preferably comprises a liquid carrier having thermal filler particles dispersed therein and a coupling agent having a functionality which is reactive with the calcined surface of the thermal filler parti­cles, and a functionality having preferential wetting of the thermal filler particles over self-condensation. Additional additives such as fumed silica and polyiso­butylene enhance the phase stability and resistance to thermo-mechanical shear force degradation of the thermally conductive compound encountered during functional usage, e.g., fluctuating power cycles.
    • 兼容导热的,优选介电的化合物,其增强诸如双极VLSI半导体芯片的大功率电气部件的功率耗散能力。 该化合物具有化学稳定的热传导和粘度特性,在使用过程中不会进行相分离,并可以以小间隙施加,以使热传导最大化。 该化合物优选包括其中分散有热填料颗粒的液体载体和具有与热填料颗粒的煅烧表面反应的官能团的偶联剂,以及在自缩合下优先润湿热填料颗粒的官能团。 另外的添加剂如热解法二氧化硅和聚异丁烯增强了在功能使用期间遇到的导热化合物的热机械剪切力降解的相位稳定性和抗性,例如波动的功率循环。