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:
Jun. 30, 2015
Filed:
Nov. 15, 2011
Applicant:
Kimihiko Ito, Tokyo, JP;
Inventor:
Kimihiko Ito, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 47/00 (2006.01); H01L 45/00 (2006.01); H01L 27/24 (2006.01);
U.S. Cl.
CPC ...
H01L 45/145 (2013.01); H01L 27/2436 (2013.01); H01L 45/04 (2013.01); H01L 45/1233 (2013.01); H01L 45/146 (2013.01);
Abstract
A variable resistance element is formed by sandwiching a metal oxide layer whose resistance changes between a pair of electrodes and the metal oxide layer includes a pair of variable resistance layers whose resistances change by formation of a current path and a branching suppression layer which is sandwiched between the variable resistance layers and suppresses branching of the current path.