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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 11955383 B1

PDFFull Text
Date of Patent:
Apr. 09, 2024

Filed:

Nov. 07, 2021

Semiconductor device and manufacturing method thereof

Applicant:

Changxin Memory Technologies, Inc., Hefei, CN;

Inventors:

Jie Liu, Hefei, CN;

Bin Yang, Hefei, CN;

Zhan Ying, Hefei, CN;

Assignee:

CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei, CN;

Attorneys:

Syncoda LLC

Feng Ma

Primary Examiner:

Victor A Mandala

Assistant Examiner:

Colleen E Snow

Int. Cl.
CPC ...
H01L 23/49 (2006.01); H01L 21/768 (2006.01); H01L 23/48 (2006.01);
U.S. Cl.
CPC ...
H01L 21/76898 (2013.01); H01L 21/76816 (2013.01); H01L 21/76846 (2013.01); H01L 23/481 (2013.01);
Abstract

A semiconductor device manufacturing method includes: providing a semiconductor base; patterning the first medium layer to form a groove extending along the base in the base; forming a first auxiliary layer and a first metal layer sequentially in the groove, where the first metal layer is located on the side of the first auxiliary layer towards the first medium layer; thinning the base on the second surface of the base to expose the first auxiliary layer; removing the first auxiliary layer to form a first opening; and forming a second metal layer on the second surface of the base, where the second metal layer fills the first opening.

Find Patent Forward Citations

Liu, Jie. (2024). Semiconductor device and manufacturing method thereof (U.S. Patent No. 11955383). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11955383

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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