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. 01, 2003
Filed:
Jul. 19, 2001
Applicant:
Inventor:
Shigekazu Yamada, Cupertino, CA (US);
Assignee:
Fujitsu Limited, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 1/606 ;
U.S. Cl.
CPC ...
G11C 1/606 ;
Abstract
System for generating a reference current in a semiconductor device. The reference current is compared to an internal device current generated by an internal device circuit to verify operation of the device. The system includes a current generator that generates the reference current and is located within the semiconductor device, and a bias generator that is coupled to the internal device circuit. The bias generator generates a back bias current to offset variations to the reference current.