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:
Dec. 25, 2012

Filed:

Mar. 30, 2010
Applicants:

Fabio Duarte DE Martin, Campinas, BR;

Andre Luis Vilas Boas, Campinas, BR;

Inventors:

Fabio Duarte De Martin, Campinas, BR;

Andre Luis Vilas Boas, Campinas, BR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A test structure () in an integrated circuit () includes a probe pad () disposed at a surface of a die () of the integrated circuit, a transmission gate () for connecting portions of an electronic circuit within the integrated circuit in response to a momentary signal applied to the probe pad, a first inverter () having an input coupled to the probe pad and having an output coupled to a control input of the transmission gate, and a second inverter () having an input coupled to an output of the first inverter and having an output coupled to another control input of the transmission gate. The output of the second inverter is coupled to the input of the first inverter. Upon power-up, the transmission gate is open. After the momentary signal is applied to the probe pad, the transmission gate closes and remains closed until power is disconnected.


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