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:
Jun. 23, 2015

Filed:

Mar. 19, 2013
Applicant:

Micron Technology, Inc., Boise, ID (US);

Inventors:

Jun Liu, Boise, ID (US);

Wenzhou Chen, San Jose, CA (US);

Assignee:

Micron Technology, Inc., Boise, ID (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); G11C 13/00 (2006.01); G11C 8/10 (2006.01); G11C 11/56 (2006.01);
U.S. Cl.
CPC ...
G11C 13/0069 (2013.01); G11C 8/10 (2013.01); G11C 11/5678 (2013.01); G11C 13/0004 (2013.01); G11C 13/0061 (2013.01); G11C 2013/009 (2013.01); G11C 2013/0092 (2013.01);
Abstract

Methods, devices, and systems associated with multilevel phase change memory cells are described herein. One or more embodiments of the present disclosure include operating a phase change memory device by placing a phase change memory cell in a reset state and applying a selected programming pulse to the phase change memory cell in order to program the cell to one of a number of intermediate states between the reset state and a set state associated with the cell. The selected programming pulse includes an uppermost magnitude applied for a particular duration, the particular duration depending on to which one of the number of intermediate states the memory cell is to be programmed.


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