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:
Oct. 25, 2016

Filed:

Dec. 03, 2014
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Yoshio Kawashima, Osaka, JP;

Yukio Hayakawa, Kyoto, JP;

Atsushi Himeno, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 45/00 (2006.01); H01L 27/24 (2006.01);
U.S. Cl.
CPC ...
H01L 27/2463 (2013.01); H01L 45/08 (2013.01); H01L 45/1233 (2013.01); H01L 45/1246 (2013.01); H01L 45/146 (2013.01); H01L 45/1625 (2013.01); H01L 45/1641 (2013.01); H01L 45/1675 (2013.01);
Abstract

A nonvolatile memory device includes an insulating layer, oxygen diffusion prevention layers disposed on the insulating layer, a plurality of contact plugs, each of the plurality of the contact plugs penetrating through each of the plurality of the oxygen diffusion prevention layers and at least a part of the insulating layer, and a plurality of resistance-variable elements, each of the plurality of the resistance-variable elements covering each of the plurality of the contact plugs exposed on surfaces of the oxygen diffusion prevention layers and being electrically connected to each of the plurality of the contact plugs Each of the oxygen diffusion prevention layers is provided only between the insulating layer and each of the plurality of the resistance-variable elements to correspond to each of the plurality of the contact plugs arranged for each of the plurality of the resistance-variable elements.


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