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:
Jun. 11, 2002
Filed:
Nov. 29, 2001
Applicant:
Inventors:
Steven H. Voldman, South Burlington, VT (US);
Stephen J. Ames, Rochester, MN (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 ;
U.S. Cl.
CPC ...
G05F 1/10 ;
Abstract
ESD (Electrostatic Discharge) robust current mirror circuits incorporate circuitry for decoupling the gate when the chip is unpowered. Additional protection is provided by a second element which provides de-biasing to prevent Vgs from being established. A third element can be added between the gate and the ground potential on the current mirror gate node to prevent the gate of the current mirror from rising too high and allows the current to be discharged through the element instead of the current mirror.