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 7330040 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 12, 2008

Filed:

Jun. 25, 2004
Applicant:

David Suitwai MA, Cary, NC (US);

Inventor:

David Suitwai Ma, Cary, NC (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Method and apparatus for testing a plurality of devices on a device wafer. One embodiment provides a test circuitry wafer having a first surface and a second surface, the test circuitry wafer comprising a plurality of contact pads disposed on the first surface for contacting a plurality of device pads on the device wafer, a plurality of interface pads disposed on the second surface for contacting probe needles on a probe card and one or more test features disposed in the test circuitry wafer, wherein the one or more test features are electrically connected to at least one of the contact pads and the interface pads.


Find Patent Forward Citations

Ma, David. (2008). Test circuitry wafer (U.S. Patent No. 7330040). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7330040

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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