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:
Aug. 04, 2015
Filed:
Dec. 20, 2013
International Business Machines Corporation, Armonk, NY (US);
Karl R. Erickson, Rochester, MN (US);
Phil C. Paone, Rochester, MN (US);
David P. Paulsen, Dodge Center, MN (US);
John E. Sheets, II, Zumbrota, MN (US);
Gregory J. Uhlmann, Rochester, MN (US);
Kelly L. Williams, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments of the disclosure provide a method for backing up data in an SRAM device, and an SRAM device that includes a capacitive backup circuit for backing up data in an SRAM device. The method may include writing data to the SRAM cell by applying an input voltage to set an input node of cross-coupled inverters to a memory state. The method may also include backing up the data written to the SRAM cell by electrically coupling the input node to the capacitive backup circuit. The method may also include restoring the data stored in the capacitive backup circuit to the SRAM cell by electrically coupling the capacitive backup circuit to the input node.