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.:
Date of Patent:
Sep. 07, 2004
Filed:
Jul. 29, 2003
Applicant:
Inventor:
Masayoshi Hirao, Fukuoka, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 3/102 ;
U.S. Cl.
CPC ...
G01R 3/102 ;
Abstract
A balance resistance is connected to each probe pin and a probe card check wire is provided on each probe pin, and thus a wafer test and chip test with application of high current can be performed, and further, a maintenance of a probe card is facilitated.