Patent ID: 6143475
Filing Date: 2000-11-07
Classification: C08G,G03F,H05K

Abstract:
A process for producing a semiconductor device, which comprises:(a) forming a polyimide precursor film on a substrate using a photosensitive resin composition comprising a photosensitive polyamide resin which is obtained by imparting photosensitivity to a polyimide precursor having repeating units of the formula: ##STR23## wherein R.sup.1 is a tetravalent organic group; and R.sup.2 is a group of the formula: ##STR24## wherein R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are independently a hydrogen atom or a monovalent organic group, and at least two of R.sup.3 to R.sup.6 are independently a monovalent organic group;(b) setting up a mask having a pattern on a polyimide precursor film;(c) exposing the polyimide precursor film to monochromatic light of i-line having a wavelength of 365 nm, using an i-line stepper, through the mask;(d) forming a polyimide precursor pattern by removing unexposed portions of the polyimide precursor film, followed by heating for imidization to make a polyimide pattern; and(e) conducting passivation processing applying dry etching using the polyimide pattern as a mask.