Patent ID: 6770726
Filing Date: 2004-08-03
Classification: C08G,C09D,C23C,H01L

Abstract:
A photo and thermally labile siloxane polymer which undergoes transformation to SiO2-rich films by the elimination of &bgr;-substituted alkyl groups, obtained from the hydrolysis and condensation polymerization of an organosilane containing a &bgr;-substituted alkyl group, the organosilane having the general formula:RnSiX(4-n) where n is 1 or 2;X is a halogen selected from the group consisting of chlorine, bromine, fluorine, and iodine; or an alkoxy selected from the group consisting of methoxy, ethoxy and propoxy substituents; and R is an alkyl group having at least one but not more than two &bgr;-substituents that are electronegative and at least one but not more than two &agr;-substituents on the &bgr;-substituted alkyl group, the &agr;-substituent being selected from the group consisting of chlorine, bromine, fluorine, iodine, hydroxy, methoxy, ethoxy, and acetoxy; and wherein said siloxane contains silanol groups.