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. 12, 2013
Filed:
Sep. 28, 2010
Igor Arsovski, Williston, VT (US);
George M. Braceras, Essex Junction, VT (US);
Kevin W. Gorman, Fairfax, VT (US);
Robert M. Houle, Williston, VT (US);
Harold Pilo, Underhill, VT (US);
Igor Arsovski, Williston, VT (US);
George M. Braceras, Essex Junction, VT (US);
Kevin W. Gorman, Fairfax, VT (US);
Robert M. Houle, Williston, VT (US);
Harold Pilo, Underhill, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Methods of setting wordline up-level voltage in as-fabricated SRAM. In one example, the method includes determining the relative speed, or strength, of 1) the combination of the pass-gate and pull-down devices and 2) the pull-up devices in the bitcells of the SRAM. These relative strengths are then used to adjust the wordline up-level voltage, if needed, to decrease the likelihood of the SRAM experiencing a stability failure. Corresponding systems are provided for determining the relative strengths of the devices of interest, for determining the amount of up-level voltage adjustment needed, and for selecting and setting the up-level voltage.