Patent ID: 6767694
Filing Date: 2004-07-27
Classification: G02F,G03F,H01L

Abstract:
A process for forming a pattern comprising:a resist pattern formation step of coating a first resist film and a second resist film in order on a film to be etched on a substrate, and further, forming an initial resist pattern by patterning said first resist film and said second resist film to make coverage of said first resist film greater in size than said second resist film; a first patterning step of etching said film to be etched to form a first pattern in said film to be etched by using said resist pattern as a mask; and a resist etching step of etching said initial resist pattern to remove at least a portion of said first resist film, said portion being not covered by said the second resist film, to thereby form a remaining resist pattern consisting of said first resist film and said second resist film, said resist etching step further being constructed such that said second resist film is in a state of a resist film having higher resistance against dry-etching than that of said first resist film at least during said resist etching step.