Patent ID: 7648894
Filing Date: 2010-01-19
Classification: C09D,H01L,Y10T

Abstract:
1. A preparation method of a low dielectric insulating film comprising the steps of: a) preparing an organic polysiloxane precursor having a weight-average molecular weight ranging from 500 to 30,000, and a molar ratio of hydroxy groups 80% or more of the total condensable functional groups; b) preparing a coating composition for production of insulating film by mixing i) said organic polysiloxane precursor, ii) an organic solvent, and iii) water; c) coating said coating composition on a substrate of a semiconductor device; and d) drying and baking said coating composition to produce insulating film, wherein the organic polysiloxane precursor is prepared by hydrolyzation and condensation of one or more silane compounds selected from the group consisting of silane compounds represented by Chemical Formulas 1 to 3 below: where R R p is an integer of 1 or 2, where each of R each of R M is a C each of q and r is an integer of 0 to 2, and where R R R R each of m and n is an integer of 3 to 7.