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:
Oct. 19, 2021

Filed:

Aug. 06, 2019
Applicant:

Globalfoundries Singapore Pte. Ltd., Singapore, SG;

Inventors:

Desmond Jia Jun Loy, Singapore, SG;

Eng Huat Toh, Singapore, SG;

Bin Liu, Singapore, SG;

Shyue Seng Tan, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/112 (2006.01); H01L 29/36 (2006.01); H01L 21/265 (2006.01); G11C 17/18 (2006.01); H01L 21/762 (2006.01); H01L 23/525 (2006.01); G11C 17/16 (2006.01); H01L 21/266 (2006.01);
U.S. Cl.
CPC ...
H01L 27/11206 (2013.01); G11C 17/16 (2013.01); G11C 17/18 (2013.01); H01L 21/266 (2013.01); H01L 21/26513 (2013.01); H01L 21/76224 (2013.01); H01L 23/5252 (2013.01); H01L 29/36 (2013.01);
Abstract

A memory device may include a first conductivity region, and second and third conductivity regions arranged at least partially within the first conductivity region. The first and second conductivity regions may have a different conductivity type from at least a part of the third conductivity region. The memory device may include first and second gates arranged over the third conductivity region. The second conductivity region may be coupled to a source line, and the gates may be coupled to respective word lines. When a predetermined write voltage difference is applied between the source line and a word line, an oxide layer of the gate coupled to the word line may break down to form a conductive link between the gate electrode of the gate and the third conductivity region. The memory device may have a smaller cell area, and may be capable of operating at both higher and lower voltages.


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