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.

Patent No.:

US 12563727 B1

Date of Patent:

Feb. 24, 2026

Filed:

Mar. 23, 2022

Semiconductor memory device and manufacturing method of semiconductor memory device

Applicant:

SK Hynix Inc., Icheon-si, KR;

Inventors:

Jae Young Oh, Icheon-si, KR;

Eun Seok Choi, Icheon-si, KR;

Assignee:

SK hynix Inc., Icheon-si, KR;

Attorney:

WILLIAM PARK AND ASSOCIATES LTD.

Primary Examiner:

Jacob Y Choi

Assistant Examiner:

Neil R Prasad

Int. Cl.

CPC ...

H10B 43/27 (2023.01); H01L 23/528 (2006.01); H10B 41/27 (2023.01); H10B 41/40 (2023.01); H10B 43/40 (2023.01);

U.S. Cl.

CPC ...

H10B 43/27 (2023.02); H01L 23/5283 (2013.01); H10B 41/27 (2023.02); H10B 41/40 (2023.02); H10B 43/40 (2023.02);

Abstract

A semiconductor memory device includes: a stack structure including a first interlayer insulating layer, and a plurality of second interlayer insulating layers and a plurality of conductive patterns, which are alternately disposed under the first interlayer insulating layer; a hole penetrating the stack structure; a core insulating pattern, a memory pattern, and a channel pattern, disposed inside the hole; and a doped semiconductor layer disposed over the first interlayer insulating layer, the doped semiconductor layer extending to the inside of the hole.

Find Patent Forward Citations

Oh, Jae. (2026). Semiconductor memory device and manufacturing method of semiconductor memory device (U.S. Patent No. 12563727). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12563727

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