Patent ID: 8133547
Filing Date: 2012-03-13
Classification: C09D,G03F

Abstract:
1. A method for forming a fine contact of a semiconductor device, comprising the steps of: (a) providing a coating composition comprising a coating base resin comprising poly(t-butylacrylate/methacrylic acid/methacrylate) and a C (b) forming a photoresist film on a semiconductor substrate having an underlying layer; (c) patterning the photoresist film to form a first photoresist pattern; and (d) coating the coating composition along a surface of the first photoresist pattern for contact to form a second photoresist pattern for contact, wherein contact regions of the first photoresist pattern and the second photoresist pattern have predetermined diameters, and a contact region of the second photoresist pattern is smaller than a contact region of the first photoresist pattern.