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:
Jun. 09, 2020

Filed:

Feb. 26, 2019
Applicant:

Toshiba Memory Corporation, Tokyo, JP;

Inventors:

Akihiro Imamoto, Yokohama Kanagawa, JP;

Akio Sugahara, Yokohama Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 16/16 (2006.01); G11C 16/04 (2006.01); G11C 16/26 (2006.01); G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
G11C 16/16 (2013.01); G11C 16/0483 (2013.01); G11C 16/26 (2013.01); G11C 7/10 (2013.01);
Abstract

A semiconductor storage device includes first and second planes each including a plurality of memory cells, an input/output circuit configured to receive data to be written in the memory cells from a controller, and a control circuit. The first plane includes a first sense amplifier circuit electrically connected to a first memory cell of the first plane and a first latch circuit connected in series between the input/output circuit and the first sense amplifier circuit. The control circuit is configured to carry out a first write operation on the first memory cell using the first latch circuit in response to a first command, and while carrying out the first write operation on the first memory cell, accept a second command to carry out a second write operation on a second memory cell of the second plane before use of the first latch circuit during the first write operation has ended.


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