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:
Mar. 26, 2024

Filed:

Nov. 11, 2023
Applicant:

Western Digital Technologies, Inc., San Jose, CA (US);

Inventors:

Guangyuan Li, Santa Clara, CA (US);

Qinghua Zhao, San Carlos, CA (US);

Sudarshan Narayanan, San Jose, CA (US);

Yuji Totoki, Milpitas, CA (US);

Fumiaki Toyama, Cupertino, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10B 43/20 (2023.01); H10B 41/20 (2023.01);
U.S. Cl.
CPC ...
H10B 43/20 (2023.02); H10B 41/20 (2023.02);
Abstract

A non-volatile memory includes a plurality of word lines connected to non-volatile memory cells, a plurality of driver lines configured to carry one or more word line voltages, and a plurality of word line switches that selectively connect the driver lines to the word lines. To more efficiently utilize space on the die, the word line switches are arranged in a plurality of three dimensional stacks such that each stack of the plurality of stacks comprises multiple word line switches vertically stacked.


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