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 8937487 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 20, 2015

Filed:

May. 27, 2011
Applicants:

Steven W. Mittl, Essex, VT (US);

Ernest Y. Yu, Essex Junction, VT (US);

Inventors:

Steven W. Mittl, Essex, VT (US);

Ernest Y. Yu, Essex Junction, VT (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); G06F 19/00 (2011.01); G01R 31/26 (2014.01);
U.S. Cl.
CPC ...
G06F 19/00 (2013.01); G01R 31/2642 (2013.01); G01R 31/2621 (2013.01);
Abstract

Methods, apparatus, and computer program products for evaluating current transients measured during an electrical stress evaluation of a dielectric layer in a semiconductor device. Measured current transients are fit to an equation representing a time dependence for stress induced leakage currents. The measured current transients are corrected based upon stress currents computed from the equation to define corrected current transients.


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