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:
Apr. 07, 2020
Filed:
Mar. 23, 2017
Nec Corporation, Minato-ku, Tokyo, JP;
Munehiro Tada, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
To stabilize programming operation and to reduce leakage current. A variable resistance element according to the present invention is provided with: an interlayer insulating film; a first electrode that is formed within the interlayer insulating film and comprises an active electrode, the side surface and the bottom surface of which are covered by a barrier metal; a variable resistance film that is formed on the upper surface of the first electrode; a second electrode that is formed on the variable resistance film; and an insulating film spacer that is formed between the variable resistance film and the barrier metal which covers the side surface of the first electrode. In this connection, the variable resistance film and the barrier metal which covers the side surface of the first electrode are in contact with the insulating film spacer, respectively.