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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.:

US 12738318 B1

PDFFull Text
Date of Patent:
Sep. 15, 2026

Filed:

Oct. 03, 2024

Sgs voltage in unselected blocks during program

Applicant:

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

Inventors:

Alvin Joshua, Fujisawa, JP;

Yuki Kuniyoshi, Fujisawa, JP;

Akitomo Nakayama, Yokohama, JP;

Hayato Horie, Yokohama, JP;

Hardwell Chibvongodze, Hiratsuka, JP;

Assignee:

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

Attorney:

Pearl Cohen LLP

Primary Examiner:

Zhuo H Li

Int. Cl.
CPC ...
G11C 16/10 (2006.01); G11C 16/04 (2006.01); G11C 16/08 (2006.01); H10B 43/10 (2023.01); H10B 43/27 (2023.01); H10B 43/35 (2023.01); H10W 90/00 (2026.01); H10W 90/24 (2026.01);
U.S. Cl.
CPC ...
G11C 16/10 (2013.01); G11C 16/0483 (2013.01); G11C 16/08 (2013.01); H10B 43/10 (2023.02); H10B 43/27 (2023.02); H10B 43/35 (2023.02); H10W 90/00 (2026.01); H10W 90/24 (2026.01);
Abstract

Technology for programing NAND memory. A memory system has control circuitry that applies a low voltage (e.g., VSS) to SGS lines in one or more unselected blocks that neighbor a block that has been selected for programming. This low voltage keeps source select transistors off, which cuts off the NAND channels in the neighbor unselected block(s) from the source line. The control circuit may float the SGS lines in other unselected blocks, which allows the source line voltage to ramp up quickly to provide for a faster programming operation.

Find Patent Forward Citations

Joshua, Alvin. (2026). Sgs voltage in unselected blocks during program (U.S. Patent No. 12738318). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12738318

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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