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. 21, 2002
Filed:
Aug. 12, 1999
Applicant:
Inventors:
Assignee:
Advanced Semiconductor Engineering Inc., Kaohsuing, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 3/102 ;
U.S. Cl.
CPC ...
G01R 3/102 ;
Abstract
A press plate mainly includes a plate and a probe. The plate has an opening which corresponds to a chip of the substrate and inner finger thereof, and the probe is elastically attached to the edge of the opening for wire bond checking. After the wire bonding process, the wire connecting the chip and the inner finger of the substrate and the probe of the wire bond checking system form a loop. Then a current is sent to the substrate from the wire bond checking system to check for the occurrence of wire occurring lift bond or missing wire.