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:
Feb. 17, 2004

Filed:

Jan. 24, 2001
Applicant:
Inventors:

Sundar S. Chetlur, Singapore, SG;

Pradip K. Roy, Orlando, FL (US);

Johathan Z. Zhou, Orlando, FL (US);

Assignee:

Agere Systems, Inc., Allentown, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 3/13163 ; G01R 3/130 ; G01R 3/127 ;
U.S. Cl.
CPC ...
G01R 3/13163 ; G01R 3/130 ; G01R 3/127 ;
Abstract

An automated system for, and method of estimating ring oscillator reliability and testing AC response of a device under test (DUT). In one embodiment, the system includes: (1) a DUT board that accepts, and allows electrical communication with, a plurality of DUTs, (2) a power source, couplable to the DUT board, that provides AC power of controllable characteristics to the plurality of DUTs and (3) an automated switching matrix, couplable between the DUT board and a circuit analyzer, that allows the circuit analyzer to analyze ring oscillators and predetermined portions of the plurality of DUTs at predetermined times as the power source provides the power thereto.


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