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:
Aug. 24, 2021
Filed:
Aug. 14, 2019
Applicant:
Nxp B.v., Eindhoven, NL;
Inventor:
Dolphin Abessolo Bidzo, Nijmegen, NL;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/02 (2006.01); H02H 9/04 (2006.01); H02H 11/00 (2006.01); H02H 9/02 (2006.01);
U.S. Cl.
CPC ...
H01L 27/027 (2013.01); H01L 27/0255 (2013.01); H01L 27/0292 (2013.01); H01L 27/0296 (2013.01); H02H 9/025 (2013.01); H02H 9/046 (2013.01); H02H 11/003 (2013.01);
Abstract
An electrostatic-discharge (ESD) protection circuit is provided. The circuit includes an I/O terminal coupled for receiving a signal having a negative voltage relative to a voltage supply terminal. An ESD transistor is formed in an isolated well. The transistor includes a control electrode and a first current electrode coupled to the I/O terminal. The isolated well is configured as a body electrode of the transistor. An ESD diode includes an anode electrode coupled to the voltage supply terminal and a cathode electrode coupled to a second current electrode of the transistor.