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:
Feb. 14, 2017

Filed:

Jun. 03, 2016
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Lukas Czornomaz, Zurich, CH;

Veeresh V. Deshpande, Zurich, CH;

Vara Sudananda Prasad Jonnalagadda, Wädenswil, CH;

Wabe Koelmans, Adliswil, CH;

Abu Sebastian, Adliswil, CH;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); G11C 13/00 (2006.01); H01L 27/24 (2006.01); H01L 45/00 (2006.01);
U.S. Cl.
CPC ...
G11C 13/004 (2013.01); G11C 13/0004 (2013.01); G11C 13/0069 (2013.01); H01L 27/2436 (2013.01); H01L 45/06 (2013.01); H01L 45/1206 (2013.01); H01L 45/1226 (2013.01);
Abstract

A memory device includes a plurality of memory cells and a control unit. The memory cells include a first segment including a resistive memory material for storing information in a plurality of resistance states, a second segment including a non-insulating material, a first terminal, a second terminal, and a third terminal. The first segment and the second segment are arranged in parallel between the first terminal and the second terminal. The control unit is configured to apply in a write mode a write voltage to the first and the second terminal for writing the resistance state, and to apply in a read mode a read voltage to the first and the second terminal for reading the resistance state, and to apply a control signal to the third terminal for adjusting the electrical resistance of the second segment. A related method and control unit are also disclosed.


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