Patent ID: 6482554
Filing Date: 2002-11-19
Classification: G03F,H01L

Abstract:
A method for manufacturing a semiconductor device having a plurality of wiring elements differing in depth and pattern, said method comprising the steps of:stacking a plurality of photoresist films differing in sensitivity on a prescribed film formed on a semiconductor substrate; exposing said plurality of photoresist films in such a way that the respective parts where said plurality of wiring elements are formed are irradiated with exposure light with an intensity corresponding to the depth of the individual wiring element; developing said plurality of photoresist films so as to pattern the individual photoresist films into a desired shape; etching said prescribed film by using said plurality of photoresist films, which have been patterned, as a mask, thereby forming a space to accommodate said plurality of wiring elements; and embedding a metal material in said space so as to form said plurality of wiring elements.