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. 16, 1999
Filed:
Jan. 06, 1994
Applicant:
Inventors:
Yukihiro Fujimoto, Yokohama, JP;
Kazutaka Nogami, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257368 ; 257369 ; 257296 ;
Abstract
A semiconductor integrated circuit apparatus comprises a semiconductor substrate, a first well region formed in the upper surface of the semiconductor substrate, a first circuit formed in the first well region, first bias voltage supply functions for supplying a bias voltage to the first well region, a second well region formed in the upper surface of the semiconductor substrate such that it does not contact the first well region, a second circuit formed in the second well region, and second bias voltage supply functions for supplying a bias voltage to the second well region.