Patent ID: 7776515
Filing Date: 2010-08-17
Classification: G03F,H01L

Abstract:
1. A method for forming a pattern of a semiconductor device, comprising: (a) forming an underlying layer on a semiconductor substrate; (b) forming a first organic hard mask film on the underlying layer, the first organic hard mask film consisting of: (c) forming a second hard mask film on the first organic hard mask film, said second hard mask film defining a surface; (d) forming a photoresist pattern on the resultant surface of (c); (e) patterning the second hard mask film using the photoresist pattern as an etching mask to form a second hard mask film pattern; (f) patterning the first organic hard mask film using the second hard mask film pattern as an etching mask to form a double hard mask film pattern of the first organic hard mask film pattern and second hard mask film pattern; and (g) patterning an underlying layer using the double hard mask film pattern as an etching mask to form an underlying pattern.