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. 15, 2009
Filed:
Jul. 26, 2004
Markus Paul Josef Mergens, Ravensburg, DE;
Cornelius Christian Russ, Diedorf, DE;
John Armer, Middlesex, NJ (US);
Koen Gerard Maria Verhaege, Gistel, BE;
Markus Paul Josef Mergens, Ravensburg, DE;
Cornelius Christian Russ, Diedorf, DE;
John Armer, Middlesex, NJ (US);
Koen Gerard Maria Verhaege, Gistel, BE;
Sofics BVBA, Gistel, BE;
Abstract
An electrostatic discharge (ESD) protection circuit in a semiconductor integrated circuit (IC) having protected circuitry. In one embodiment, the ESD protection circuit includes a pad adapted for connection to a first voltage source of a protected circuit node of the IC, and a silicon controlled rectifier (SCR) having an anode adapted for coupling to the first voltage source, and a cathode adapted for coupling to a second voltage source. At least one capacitive turn-on device respectively coupled between at least one of a first gate of the SCR and the first voltage source, and a second gate of the SCR and the second voltage source.