Patent ID: 6025117
Filing Date: 2000-02-15
Classification: C08G,G03F

Abstract:
A method of forming a pattern, comprising:a) forming an insulating layer or conducting layer on a substrate;b) forming an organosilicon polymer film containing crosslinking agent on said insulating layer or conducting layer;c) subjecting said organosilicon polymer film to a crosslinking reaction by means of light or heat;d) forming a resist pattern on said organosilicon polymer film;e) etching said organosilicon polymer film with said resist pattern being employed as a mask, thereby forming an organosilicon polymer film pattern; andf) etching said insulating layer or conducting layer with said resist pattern and said organosilicon polymer film pattern being employed as a mask,wherein said organosilicon polymer is selected from the group consisting ofa polysilane copolymer having a repeating unit selected from the group consisting of the following formulae (LPS-II) and (LPS-VI): ##STR60## wherein A is a bivalent organic group; R.sup.1 substituents are the same or different and are selected from the group consisting or hydrogen, optionally hydrocarbon group and silyl group;a polysilane copolymer having a repeating unit selected from the group consisting of the following formulae (ARPS-I) and (ARPS-II): ##STR61## wherein R.sup.3 is selected from the group consisting of hydrogen, optionally substituted hydrocarbon group having not more than four carbon atoms, silyl, and alkoxyl; R.sup.4 is selected from the group consisting of hydrogen, optionally substituted hydrocarbon having not more than four carbon atoms and silyl; R.sup.5 is selected from the group consisting of hydrogen, optionally substituted aryl and hydrocarbon having not more than four carbon atoms;m and n are positive integers;a polysilane dendrimer having the formula (PSD-I) or (PSD-II): ##STR62## wherein R is optionally a substituted hydrocarbon.