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:
Apr. 20, 2010
Filed:
Feb. 22, 2007
Shuuji Matsumoto, Kanagawa-ken, JP;
Keiko Fukuda, Tokyo, JP;
Shuuji Matsumoto, Kanagawa-ken, JP;
Keiko Fukuda, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor integrated circuit includes: a first boundary cell having a first power source wiring, a second power source wiring and a first pseudo power source wiring; a first circuit cell having a third power source wiring connected with the first power source wiring, a second pseudo power source wiring connected with the first pseudo power source wiring, and a first circuit formed of a first circuit transistor; and a first switching transistor having a first electrode connected with the second power source wiring, a second electrode connected with the first pseudo power source wiring, and a gate electrode, wherein the first switching transistor is operated to be turned 'ON' and 'OFF' according to a control signal inputted to the gate electrode of the first switching transistor and an absolute value of a threshold voltage of the first switching transistor is larger than an absolute value of a threshold voltage of the first circuit transistor.