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. 21, 1993
Filed:
Feb. 07, 1992
Applicant:
Inventor:
Satoru Fukunaga, Tenri, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ;
U.S. Cl.
CPC ...
3241 / ; 3241 / ;
Abstract
In order to improve the operability of a burn-in apparatus, to shorten the operating time, to reduce the number of the components, and to increase the package density of semiconductor integrated circuits to be accommodated within a burn-in apparatus, semiconductor integrated circuits with a lead frame are mounted on a first wiring board by means of fixing the pressuring member to the first wiring board with a magnetic force. Thereafter, the first wiring board is mounted to a second wiring board, and both are to be inserted into a burn-in apparatus.