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:
Sep. 29, 2026
Filed:
Jan. 25, 2024
Winbond Electronics Corp., Taichung City, TW;
Chung-Hsuan Wang, Taichung City, TW;
WINBOND ELECTRONICS CORP., Taichung City, TW;
Abstract
A memory device includes a substrate, an isolation structure, a first transistor, a second transistor, a first guard ring, and a dielectric guard ring. The substrate has a first region and a second region which are adjacent. The isolation structure is embedded in the substrate. The first transistor is disposed over the first region of the substrate and has a first conductivity type. The second transistor is disposed over the second region of the substrate and has a second conductivity type which is different from the first conductivity type. The first guard ring is disposed over the first region of the substrate and surrounds the first transistor. The first guard ring includes the same material as the first transistor and has the first conductivity type. The dielectric guard ring is disposed over the substrate and surrounds the first guard ring.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile