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:
May. 05, 2026

Filed:

Jun. 27, 2024
Applicant:

Sandisk Technologies, Inc., Milpitas, CA (US);

Inventors:

Mark Lin, Santa Clara, CA (US);

Dimitri Houssameddine, Sunnyvale, CA (US);

Raj Ramanujan, Federal Way, WA (US);

Christopher J. Petti, Mountain View, CA (US);

Assignee:

Sandisk Technologies, Inc., Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/16 (2006.01);
U.S. Cl.
CPC ...
G11C 11/1675 (2013.01); G11C 11/1673 (2013.01);
Abstract

Technology for programming selector-only memory cells in a cross-point memory structure. The threshold switching memory element may include, but is not limited to, an Ovonic Threshold Switch (OTS). The memory system removes Vth drift in the threshold switching memory elements prior to programming. The Vth drift is removed by applying a first voltage and a second voltage having opposite polarities to all of the SOM cells to be programmed. Then, two programming voltages having the two polarities are applied to program the cells to two states.


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