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:
Jun. 18, 2013

Filed:

Nov. 23, 2010
Applicants:

Daisuke Watanabe, Saitama, JP;

Toshiyuki Okayasu, Saitama, JP;

Inventors:

Daisuke Watanabe, Saitama, JP;

Toshiyuki Okayasu, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/20 (2006.01); G01R 31/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A test system that tests a plurality of chips under test formed on a wafer under test, the test system comprising a plurality of test substrates that are arranged in overlapping layers and that each have a plurality of test circuits, whose function is determined for each wafer, formed thereon; a plurality of connecting sections that electrically connect, to the chips under test, the test circuits formed on one of the test substrates; and a control apparatus that controls each of the test circuits. Each test substrate has test circuits, with a function predetermined for each substrate, formed thereon.


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