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:
Apr. 21, 2025

Filed:

Aug. 20, 2023
Applicant:

Untether Ai Corporation, Toronto, CA;

Inventors:

Katsuyuki Sato, Tokyo, JP;

William Martin Snelgrove, Toronto, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/419 (2005.12); G11C 5/14 (2005.12); G11C 7/10 (2005.12); G11C 7/12 (2005.12); G11C 7/18 (2005.12);
U.S. Cl.
CPC ...
G11C 11/419 (2012.12); G11C 5/14 (2012.12); G11C 7/1048 (2012.12); G11C 7/12 (2012.12); G11C 7/18 (2012.12);
Abstract

A low-power static random access memory (SRAM) is set forth which includes a cache memory function without requiring a special bit cell, and which realizes robust read and write operation without any write assist circuit at 16 nm or below FinFET technology. The SRAM comprises a half-Vdd precharge 6 T SRAM cell array for robust operation at low supply voltage at 16 nm or below, and with cacheable dynamic flip-flop based differential amplifier referred to as a main amplifier (MA). Prior art 6 T SRAM cell arrays use Vdd or Vdd-Vth precharge schemes, and have separate read and write amplifiers. The SRAM set forth uses one main amplifier only, which is connected to the bit line (BL) through a transmission gate. The main amplifiers functions as a read amplifier, write amplifier, and a cache memory.


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