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.

Date of Patent:
Jan. 30, 2018

Filed:

Dec. 19, 2014
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

John A. Fifield, Underhill, VT (US);

Robert J. Gauthier, Jr., Hinesburg, VT (US);

Junjun Li, Williston, VT (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01); H02H 9/04 (2006.01); H01L 23/522 (2006.01); H01L 27/02 (2006.01); H01L 29/94 (2006.01);
U.S. Cl.
CPC ...
H02H 9/046 (2013.01); H01L 23/5228 (2013.01); H01L 27/0285 (2013.01); H01L 29/945 (2013.01); H01L 2924/0002 (2013.01);
Abstract

Electrostatic discharge protection circuits and methods of fabricating an electrostatic discharge protection circuit, as well as methods of protecting an integrated circuit from a transient electrostatic discharge event. The electrostatic discharge protection circuit includes a power clamp device, a first timing circuit with a first resistor and a first capacitor that is coupled with the first resistor at a first node, and a second timing circuit including a second resistor and a second capacitor that is coupled with the second resistor at a second node. The electrostatic discharge protection circuit further includes a logic gate with a first input coupled with the first node, a second input coupled with the second node, and an output coupled with the power clamp device. The logic gate responds to voltages at the first and second nodes to control the impedance state of the power clamp device.


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