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.:
Date of Patent:
Apr. 28, 2026
Filed:
Jan. 11, 2023
Changxin Memory Technologies, Inc., Hefei City, CN;
CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei City, TW;
Abstract
An electrostatic discharge protection structure and a chip are provided. The electrostatic discharge protection structure includes: a semiconductor substrate, an N-type well, a P-type well, a first N-type doped portion, a first P-type doped portion, a second P-type doped portion and a second N-type doped portion. The N-type well and the P-type well are located in the semiconductor substrate. The first N-type doped portion and the second P-type doped portion are located in the P-type well, and the first P-type doped portion and the second N-type doped portion are located in the N-well. The first N-type doped portion has a 'T' shape structure, the first P-type doped portion has a “U” shape structure, and a part of the first N-type doped portion is located in a “U” shape opening of the first P-type doped portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile