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:
Oct. 14, 2025
Filed:
Nov. 28, 2023
Applicant:
Microchip Technology Incorporated, Chandler, AZ (US);
Inventors:
Assignee:
Microchip Technology Incorporated, Chandler, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10D 89/60 (2025.01);
U.S. Cl.
CPC ...
H10D 89/811 (2025.01); H10D 89/921 (2025.01);
Abstract
A circuit for electrostatic discharge (ESD) protection may protect sensitive circuits in the presence of both positive and negative ESD events. A protection transistor may be coupled to a pad, and a protection clamp may be coupled to the protection transistor. The protection transistor may be in an isolation n-well, and a current limiting resistor may be coupled from the pad to the isolation n-well. In operation, the current limiting resistor may limit the current during negative ESD events.