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:
Feb. 11, 2025

Filed:

Apr. 28, 2021
Applicant:

Kepler Computing Inc., San Francisco, CA (US);

Inventors:

Sasikanth Manipatruni, Portland, OR (US);

Rajeev Kumar Dokania, Beaverton, OR (US);

Ramamoorthy Ramesh, Moraga, CA (US);

Assignee:

Kepler Computing Inc., San Francisco, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/22 (2006.01); H01L 21/02 (2006.01); H01L 49/02 (2006.01); H10B 53/00 (2023.01); H10B 53/30 (2023.01);
U.S. Cl.
CPC ...
G11C 11/221 (2013.01); G11C 11/2255 (2013.01); G11C 11/2257 (2013.01); H01L 21/02197 (2013.01); H01L 28/55 (2013.01); H01L 28/75 (2013.01); H01L 28/90 (2013.01); H10B 53/00 (2023.02); H10B 53/30 (2023.02); G11C 11/225 (2013.01);
Abstract

Described is a low power, high-density non-volatile differential memory bit-cell. The transistors of the differential memory bit-cell can be planar or non-planer and can be fabricated in the frontend or backend of a die. A bit-cell of the non-volatile differential memory bit-cell comprises first transistor first non-volatile structure that are controlled to store data of a first value. Another bit-cell of the non-volatile differential memory bit-cell comprises second transistor and second non-volatile structure that are controlled to store data of a second value, wherein the first value is an inverse of the second value. The first and second volatile structures comprise ferroelectric material (e.g., perovskite, hexagonal ferroelectric, improper ferroelectric).


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