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:
Dec. 16, 2003
Filed:
Aug. 14, 2001
Applicant:
Inventors:
Taiji Ema, Kawasaki, JP;
Edward J. Swenson, Portland, OR (US);
Thomas W. Richardson, Portland, OR (US);
Yunlong Sun, Portland, OR (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/144 ; H01L 2/182 ;
U.S. Cl.
CPC ...
H01L 2/144 ; H01L 2/182 ;
Abstract
The semiconductor device includes a blocking layer formed on a substrate , an insulation film formed on the blocking layer , and a fuse formed on the insulation film . The blocking layer is formed below the fuse , whereby the fuse is disconnected by laser ablation, and the laser ablation can be stopped by the blocking layer with good controllability without damaging the substrate. The fuses to be disconnected can be arranged at a very small pitch, which can improve integration of the fuse circuit.