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:
Nov. 03, 2009
Filed:
May. 06, 2003
Masayuki Miyazaki, Tokyo, JP;
Yusuke Kanno, Hachioji, JP;
Goichi Ono, Saitama, JP;
Toshinobu Shinbo, Kitami, JP;
Yoshihiko Yasu, Kodaira, JP;
Kazumasa Yanagisawa, Kokubunji, JP;
Takashi Kuraishi, Chofu, JP;
Masayuki Miyazaki, Tokyo, JP;
Yusuke Kanno, Hachioji, JP;
Goichi Ono, Saitama, JP;
Toshinobu Shinbo, Kitami, JP;
Yoshihiko Yasu, Kodaira, JP;
Kazumasa Yanagisawa, Kokubunji, JP;
Takashi Kuraishi, Chofu, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi ULSI Systems Co., Ltd., Tokyo, JP;
Abstract
A body bias control system allows for independent design of a functional module, thereby reducing the burden of designing the module. The body bias control system provides a switch circuit having an area in which the body bias is controlled independently of its outside portion, for controlling the supply of body bias in the vicinity of the area. Preferably three types of switches are provided for switching the body bias to suitable levels for a standby mode, a mode of normal operation and a mode of high-speed operation.