The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2003
Filed:
Apr. 18, 2002
Applicant:
Inventors:
Manabu Hayashi, Kawasaki, JP;
Junichi Yayanagi, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/900 ;
U.S. Cl.
CPC ...
H01L 2/900 ;
Abstract
In a semiconductor device having a fuse and an etching stopper film covering the fuse, an optical window exposing the etching stopper film and a contact hole exposing a conductor pattern are formed simultaneously. By applying a dry etching process further to the etching stopper film, an insulation film covering the fuse is exposed in the optical window.
Hayashi, Manabu. (2003). Semiconductor device having a fuse and a fabrication process thereof (U.S. Patent No. 6617664). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6617664
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile