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:
Feb. 14, 2012
Filed:
Jan. 12, 2010
Applicants:
Daichi Kaku, Kanagawa-ken, JP;
Toshimasa Namekawa, Tokyo, JP;
Inventors:
Daichi Kaku, Kanagawa-ken, JP;
Toshimasa Namekawa, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C 17/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A nonvolatile semiconductor memory device includes a memory cell, a precharge control circuit, a power supply circuit, a bit line driver, a word line driver, a first multiplexer, and a second multiplexer. The memory cell includes an anti-fuse storage element and a selection transistor. Before data are written into the anti-fuse storage element of the memory cell, the anti-fuse storage element is set up in a precharged state by the precharge control circuit, the bit line driver, the word line driver, the first multiplexer, and the second multiplexer.