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:
Mar. 02, 2010
Filed:
May. 22, 2007
Applicant:
Benjamin Van Camp, Antwerp, BE;
Inventor:
Benjamin Van Camp, Antwerp, BE;
Assignee:
Sofics BVBA, Gistel, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01); H02H 3/20 (2006.01); H02H 9/04 (2006.01); H02H 3/22 (2006.01); H02H 1/00 (2006.01); H02H 1/04 (2006.01); H02H 9/06 (2006.01); H01C 7/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an ESD protection circuitry in a semiconductor integrated circuit (IC) having protected circuitry to prevent false triggering of the ESD clamp. The circuitry includes an SCR as an ESD clamp having an anode adapted for coupling to a first voltage source, and a cathode adapted for coupling to a second voltage source. The circuitry also includes at least one noise current buffer (NCB) coupled between at least one of a first trigger tap of the SCR and the first voltage source such that the first trigger tap of the SCR is coupled to a power supply.