Patent ID: 6465368
Filing Date: 2002-10-15
Classification: H01L,Y10T

Abstract:
An insulating film-forming material comprising dissolving an inorganic polymer compound or an organic polymer compound in an organic solvent having a solubility in water of 100 g/100 cc or less at 20Â° C., and causing the solution to come in contact with water or an acidic aqueous solution to perform liquid-liquid extraction, wherein said water has ana eletrical resistance of 10 M&OHgr;/cm or higher and said aqueous acidic solution is prepared by mixing an acid water having an electrical resistance of 10 M&OHgr;/cm or greater,wherein the inorganic polymer compound is a compound obtained by hydrolysis and condensation of at least one silane compound selected from the compounds shown by the following formulas (1), (2), or (3) in the presence of a catalyst, RaSi(OR1)4âˆ’aâ€ƒâ€ƒ(1) wherein R is a hydrogen atom, fluorine atom, or monovalent organic group, R1 is a monovalent organic group, and a is an integer from 1 to 2.Si(OR2)4â€ƒâ€ƒ(2) wherein R2 represents a monovalent organic group,R3b(R4O)3âˆ’bSiâ€”(R7)dâ€”Si(OR5)3âˆ’cR6câ€ƒâ€ƒ(3) wherein R3, R4, R5, and R6 individually represent a monovalent organic group, b and c individually represent an integer from 0 to 2, R7 represents an oxygen atom, a phenylene group, or a group â€”(CH2)nâ€” (wherein n is an integer from 1 to 6), and d is 0 or 1.