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:
May. 10, 2011
Filed:
Apr. 08, 2009
Applicant:
Cheng-lien Chiang, Taipei, TW;
Inventor:
Cheng-Lien Chiang, Taipei, TW;
Assignee:
Nichepac Technology Inc., Taipei County, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A flexible redistribution membrane and a piece of silicon rubber is used in a testing fixture for testing a singulated bare die. The silicon rubber is used as a cushion under the flexible redistribution membrane against the downward pressure from the bare die during testing so that the top pads of the flexible redistribution membrane can be electrically tight coupling to bottom pads of the bared die to be tested.