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:
Oct. 22, 2002
Filed:
Jul. 26, 2001
Applicant:
Inventor:
Takehiro Ochi, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
A switching circuit between a main circuit and a redundant circuit in a semiconductor device is disclosed. The redundant circuit replaces the main circuit by blowing a fuse. But a nullifying means can nullify blowing of the fuse, if needed. A switching element connected in parallel with the fuse and a control means enable nullification. The control means turn on the switching element to ascertain whether nullification is effective, and fix the nullification by blowing a fuse in the control means.
Ochi, Takehiro. (2002). Switching circuit and semiconductor device (U.S. Patent No. 6469943). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6469943
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile