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.:

US 9274155 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 01, 2016

Filed:

Sep. 25, 2012
Applicant:

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

Inventors:

Shunhua T. Chang, South Burlington, VT (US);

James P. Di Sarro, Essex Junction, VT (US);

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

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
G01R 31/002 (2013.01); G01R 31/2841 (2013.01);
Abstract

An approach for cancelling reverse reflections in very-fast transmission line pulse (VFTLP) testing of an electrostatic discharge (ESD) device in a semiconductor is provided. A method includes generating an incident pulse in a VFTLP system for applying to a device under test (DUT). The method also includes generating a delayed replica of the incident pulse. The method also includes cancelling a portion of a reverse reflection of the incident pulse by combining the delayed replica with the reverse reflection at a power divider.


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