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:
Aug. 14, 2012
Filed:
Dec. 14, 2011
Applicants:
Tetsuya Kuitani, Tokyo, JP;
Tadao Saito, Tokyo, JP;
Yoshihiro Abe, Tokyo, JP;
Inventors:
Assignee:
Advantest Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/66 (2006.01); H01H 67/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A contactor and an associated contact structure, probe card and test apparatus are provided. The contact may include a base part having three or more steps in a stairway state, a support part with a rear end side provided at the base part and a front end side sticking out from the base part, and a conductive part formed on a surface of the support part and electrically contacting a contact of a device under test.