Patent ID: 6395649
Filing Date: 2002-05-28
Classification: B05D,C09D,H01L

Abstract:
A process for the preparation of an electrically insulative polyorganosilicon material comprising:a) providing a polycarbosilane of the general formula: â€ƒin which: R1, R7, and R10 each independently represents a substituted or unsubstituted alkylene, cycloalkylene, or arylene group; R2, R3, R4, R5, R8 and R9 each independently represents a hydrogen atom or organic group. R6 represents an organosilicon, a silanyl, a siloxyl, or an organo group; and x, y, z and w satisfying the conditions of [10(b) subjecting the polycarbosilane coated substrate to a thermal or high energy source under controlled conditions to cause interaction and crosslinking of the polycarbosilane to form a polyorganosilicon material having a dielectric constant of less than 4.