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    • 4. 发明公开
    • Process for formation of insulating layer of silylated polysilsesquioxane on electronic circuit board
    • 一种用于生产电子印刷电路上绝缘甲硅烷基化聚倍半硅氧烷的层的过程。
    • EP0198976A2
    • 1986-10-29
    • EP85307905.1
    • 1985-10-31
    • FUJITSU LIMITED
    • Fukuyama, Shun-ichiYoneda, YasuhiroMiyagawa, MasashiNishii, KotaMatsuura, Azuma
    • C08G77/06H01B3/46
    • H01L21/02137C08G77/06H01B3/46H01L21/02282H01L21/3122H01L21/4803H01L21/481H01L23/49894H01L2924/0002H05K3/4676Y10S428/90Y10S428/901Y10T428/31663Y10T428/31678H01L2924/00
    • A lower alkyl polysilsesquioxane having a general formula
      wherein R is lower alkyl, preferably CH 3 or C 2 H 5 , and n is an integer equal to about 50 to about 10,000, prepared by (a) dissolving a lower alkyl trifunctional silane in an organic solvent at a temperature of -20°C to -50°C to form an organic solution thereof; (b) hydrolysing the lower alkyl trifunctional silane by dropping water into the organic solution at a temperature of -20°C to -50°C under an inert gas pressurised at 1,000 to 3,000 Pa; and (c) gradually heating the organic solution together with a water phase lying therebeneath up to a temperature of 60°C to 100°C under an inert gas pressurised at 1,000 to 3,000 Pa.
      Also, a flat surfaced insulating layer of a silylated organopolysilsesquioxane having a general formula
      wherein R' and R 2 are each selected from alkyl and phenyl (preferably methyl or ethyl), and n is an integer equal to about 50 to about 2,000, preferably about 50 to about 500, formed on a circuit board having stepwise differences in height thereon, by applying an organic solution of the polymer; evaporating the solvent; and melting the polymer to flatten the surface of the polymer and curing the polymer.
    • 具有通式A的低级烷基聚倍半硅氧烷... ... worin R是低级烷基,优选为CH 3或C 2 H 5,n为约10,000,通过(a)在以溶解的低级烷基的三官能硅烷制备等于约50的整数 在-20℃至-50℃的温度下有机溶剂以形成在其有机溶液:(b)以在-20℃的温度下滴加水进入有机溶液至-50℃水解低级烷基硅烷的三官能 在1000加压至3000帕的惰性气体下℃; 和(c)逐渐在1000加压至3000帕的惰性气体下,水相位于其下方高达60℃至100℃的温度下一起加热的有机溶液。 ... 因此,扁平浮出水面具有通式甲硅烷基化的organopolysilsesquioxane绝缘层... ... worin - [R <1>和R <2>由烷基和苯基(优选甲基或乙基),每个选择,并且 n为等于约50的整数至约2,000,优选约50至约500,通过施加到所述聚合物的有机溶液形成在具有其上在高度分段差的电路板; 蒸发溶剂; 和熔化聚合物扁平化聚合物的表面并固化所述聚合物。