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:
Nov. 21, 2017

Filed:

Mar. 13, 2017
Applicant:

Toshiba Memory Corporation, Minato-ku, Tokyo, JP;

Inventor:

Akira Katayama, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 11/16 (2006.01);
U.S. Cl.
CPC ...
G11C 11/1673 (2013.01); G11C 11/1695 (2013.01); G11C 11/1697 (2013.01);
Abstract

According to one embodiment, a memory device includes a memory cell array; a generation circuit generating a reference current; a sense amplifier comparing a cell current flowing through a memory cell with the reference current; a first clamp transistor connected between the sense amplifier and the memory cell; a second clamp transistor connected between the sense amplifier and the generation circuit; a first interconnect layer connected to a gate of the first clamp transistor; a second interconnect layer connected to a gate of the second clamp transistor and arranged adjacent to the first interconnect layer; and a first shield line arranged adjacent to one of the first interconnect layer and the second interconnect layer, a fixed voltage being applied to the first shield line.


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