Patent ID: 6284575
Filing Date: 2001-09-04
Classification: H01L

Abstract:
A method of fabricating a semiconductor device having fuses for repair comprising the steps of:forming a lower insulating film on a semiconductor substrate;forming a plurality of fuses on said lower insulating film;forming an intermediate insulating film on a resulting structure;using TEOS film to form an etch stop film on said intermediate insulating film;forming an etch stop film pattern by etching said etch stop film with an etch mask which exposes a larger area than that of a predetermined fuse box;forming an upper insulating film on a resulting structure;forming a plurality of fuse boxes by etching said upper insulating film with an etch mask which exposes an area of a defined fuse box in order to expose at least a portion of said etch stop film pattern; andremoving said exposed portion of said etch stop film pattern, whereby a remaining intermediate insulating film has a constant thickness for each of said plurality of fuse boxes.