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.

Date of Patent:
Dec. 18, 2018

Filed:

Nov. 13, 2017
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

David D. Cadigan, Danbury, CT (US);

William V. Huott, Holmes, NY (US);

Adam J. McPadden, Underhill, VT (US);

Anuwat Saetow, Austin, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/412 (2006.01); G11C 13/00 (2006.01); G11C 14/00 (2006.01); G11C 29/12 (2006.01); G11C 11/419 (2006.01);
U.S. Cl.
CPC ...
G11C 13/0069 (2013.01); G11C 11/419 (2013.01); G11C 13/0004 (2013.01); G11C 14/009 (2013.01); G11C 29/12 (2013.01); G11C 11/412 (2013.01); G11C 2029/1204 (2013.01);
Abstract

Embodiments include techniques for static random access memory (SRAM) bitline equalization using phase change material (PCM). The techniques include detecting a defect in SRAM bitlines, and programming a variable resistance PCM cell to offset the detected defect. The techniques also include measuring signal development time for the SRAM bitlines, and adjusting the programming of the variable resistance PCM cell based at least in part on the measured signal development for the SRAM bitlines.


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