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:
Oct. 05, 2010
Filed:
Jun. 20, 2008
Applicants:
Sebastian Ehrenreich, Schoenau, DE;
Juergen Pille, Stuttgart, DE;
Dieter Wendel, Schoenaich, DE;
Inventors:
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 5/14 (2006.01); G11C 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A structure and method to reduce leakage of a Static Random Access Memory (SRAM) array, wherein the array is subdivided into a set of sub-arrays, whose supply voltages can be controlled independently using a single voltage regulation circuit dedicated to the entire SRAM array. A switch fabric enables independent switching of individual sub-arrays between a virtual ground level and a system ground level based on whether the sub-array is operating in power saving mode or a high performance mode to reduce leakage current when a sub-array is configured in a power saving mode.