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:

Nov. 11, 2021
Applicant:

Socionext Inc., Kanagawa, JP;

Inventor:

Yasumitsu Sakai, Kanagawa, JP;

Assignee:

SOCIONEXT INC., Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10B 20/00 (2023.01); H01L 29/06 (2006.01); H01L 29/423 (2006.01); H01L 29/775 (2006.01); H01L 29/786 (2006.01);
U.S. Cl.
CPC ...
H10B 20/50 (2023.02); H01L 29/0673 (2013.01); H01L 29/42392 (2013.01); H01L 29/775 (2013.01); H01L 29/78696 (2013.01); H10B 20/34 (2023.02);
Abstract

A ROM cell includes first and second three-dimensional transistors. The second transistor is formed above the first transistor, and the channel portions of the first and second transistors overlap each other. First data is stored depending on whether first and second local interconnects connected to the nodes of the first transistor are connected to a same line, or different lines, out of a bit line and a ground power supply line. Second data is stored depending on whether third and fourth local interconnects connected to the nodes of the second transistor are connected to a same line, or different lines, out of a bit line and a ground power supply line.


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