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:
Dec. 06, 2022

Filed:

Apr. 29, 2021
Applicant:

Winbond Electronics Corp., Taichung, TW;

Inventor:

Ying-Chu Yen, Taichung, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/108 (2006.01); H01L 29/78 (2006.01); H01L 21/768 (2006.01); H01L 29/66 (2006.01);
U.S. Cl.
CPC ...
H01L 27/10814 (2013.01); H01L 21/76897 (2013.01); H01L 27/10855 (2013.01); H01L 27/10873 (2013.01); H01L 27/10885 (2013.01); H01L 27/10888 (2013.01); H01L 29/66666 (2013.01); H01L 29/7827 (2013.01);
Abstract

A method for forming a semiconductor memory structure includes forming an isolation structure surrounding an active region in a substrate. The method also includes forming a first trench to separate the active region into a first active region and a second active region. The method also includes forming a bit line over the bottom portion of the first trench. The method also includes forming a word line surrounding the first active region and the second active region and over the bit line. The method also includes self-aligned forming a contact over the first active region and the second active region. The method also includes forming a capacitor over the contact.


Find Patent Forward Citations

Yen, Ying-Chu. (2022). Semiconductor memory structure and method for forming the same (U.S. Patent No. 11521975). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11521975

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

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