Patent ID: 6492278
Filing Date: 2002-12-10
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device comprising the steps of:forming a first organic layer on an insulating film; forming a second organic layer on the first organic layer; patterning the second organic layer; forming a silicon oxide film or a metal-containing inorganic film on an entire surface of the patterned second organic layer, thereby covering the second organic layer; removing the silicon oxide film or the metal-containing inorganic film, the second organic layer, and the first organic layer, by dry etching, thereby patterning the first organic layer and the silicon oxide film or the metal-containing inorganic film; removing the silicon oxide film or the metal containing inorganic film and the insulating film by using the patterned first organic layer as a mask, thereby exposing the surface of the patterned first organic layer and simultaneously forming a trench in the insulating film; and removing the first organic layer.