Patent ID: 7033951

Claim:
A process for forming a pattern, comprising: a lithography step of forming a mask pattern made of an organic material and having a prescribed shape on a film to be etched formed on a substrate; a first etching step of removing said film to be etched to a partial depth from a surface thereof by using said mask pattern as a mask to form an exposed region of said film to be etched and a covered region of said film to be etched covered by said mask pattern; a reflow step of hearing said mask pattern to form a deformed mask pattern; and a second etching step of etching and removing said exposed region of said film to be etched by using said deformed mask pattern as a mask, wherein said mask pattern has regions having different film thicknesses such that at least one edge of a spaced gap region thereof is thicker than other regions so that an exposed region from said spaced gap region is entirely covered with said deformed mask pattern.