Patent ID: 8803281

Claim:
A semiconductor device, comprising: a semiconductor substrate; a field insulating film provided on the semiconductor substrate; a fuse provided on the field insulating film and made of polycrystalline silicon, the fuse including a fuse trimming laser irradiation portion to be subjected to laser trimming and fuse terminals provided on both sides of the fuse trimming laser irradiation portion; an intermediate insulating film for covering the fuse; a first TEOS layer provided on the intermediate insulating film; an SOG layer for planarizing the first TEOS layer; a second TEOS layer provided on the SOG layer and on the first TEOS layer; a protective film provided on the second TEOS layer; an opening portion provided above the fuse trimming laser irradiation portion in a region from the protective film to the first TEOS layer; and a seal ring made of a first layer of a metal wiring layer and provided on the intermediate insulating film so as to surround the opening portion, wherein the fuse terminals are extended to exist under the seal ring.