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:
Feb. 26, 2013
Filed:
Mar. 12, 2012
Toshiaki Kawasaki, Osaka, JP;
Yasuhiro Agata, Osaka, JP;
Masanori Shirahama, Shiga, JP;
Toshihiro Kougami, Kyoto, JP;
Katsuya Arai, Kyoto, JP;
Toshiaki Kawasaki, Osaka, JP;
Yasuhiro Agata, Osaka, JP;
Masanori Shirahama, Shiga, JP;
Toshihiro Kougami, Kyoto, JP;
Katsuya Arai, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A semiconductor device includes an electric fuse circuit and a program protective circuit. The electric fuse circuit includes a fuse element and a transistor connected together in series and placed between a program power supply and a grounding, and controlling sections. The program protective circuit is placed in parallel with the electric fuse circuit and between the program power supply and the grounding. When a surge voltage is applied between the program power supply and the grounding, the foregoing structure allows a part of a surge electric current can flow through the program protective circuit.