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:
Jul. 07, 2015
Filed:
Aug. 29, 2012
Mizuki Kaneko, Yokohama, JP;
Tomonori Kurosawa, Zama, JP;
Yoichi Minemura, Yokkaichi, JP;
Hiroshi Kanno, Yokkaichi, JP;
Takafumi Shimotori, Kawasaki, JP;
Takayuki Tsukamoto, Yokkaichi, JP;
Mizuki Kaneko, Yokohama, JP;
Tomonori Kurosawa, Zama, JP;
Yoichi Minemura, Yokkaichi, JP;
Hiroshi Kanno, Yokkaichi, JP;
Takafumi Shimotori, Kawasaki, JP;
Takayuki Tsukamoto, Yokkaichi, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
A semiconductor storage device includes a memory cell array, and a control circuit. The memory cell array has memory cells including variable resistive elements disposed at intersections of a plurality of first lines and a plurality of second lines. The control circuit performs a set pulse applying operation, and a cure pulse applying operation. The set pulse applying operation applies a set pulse to a variable resistive element so as to cause the variable resistive element to transition from a high resistance state to a low resistance state. The cure pulse applying operation applies a cure pulse to the variable resistive element. The cure pulse has a polarity that is opposite of a polarity of the set pulse, and is larger than the set pulse.