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:
Apr. 28, 2015
Filed:
Nov. 19, 2012
Applicant:
Panasonic Corporation, Osaka, JP;
Inventor:
Kiyotaka Tsuji, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 13/00 (2006.01); G11C 8/08 (2006.01);
U.S. Cl.
CPC ...
G11C 13/0002 (2013.01); G11C 13/0004 (2013.01); G11C 13/0007 (2013.01); G11C 13/0069 (2013.01); G11C 13/0038 (2013.01); G11C 8/08 (2013.01); G11C 2213/15 (2013.01); G11C 2213/77 (2013.01);
Abstract
A nonvolatile semiconductor memory device includes word lines, bit lines, a cross-point cell array including cells, each of which includes memory cells and at least one offset detection cell, a word line selection circuit, a bit line selection circuit, a write control circuit, a current sensing circuit which detects a current and converts it into an electrical signal, wherein a write control circuit adjusts a write electrical signal for causing a second write current higher than a first write current to flow through the memory cell.