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:
Jul. 06, 1993
Filed:
Dec. 02, 1991
Applicant:
Inventors:
Kanji Ozawa, Tokyo, JP;
Yukitaka Sonoda, Tokyo, JP;
Assignee:
Kabushiki Kaisha Shinkawa, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
156378 ; 156 64 ; 29721 ; 29833 ; 29834 ; 356400 ;
Abstract
Two parts to be bonded together, such as a circuit board and a chip, are brought into one-above-the-other relationship, and before bonding is performed, a detecting device with an upper opening and a lower opening is set between the two parts, and by the use of optical system that is lights which passes through the openings, a positional alignment between the two parts is performed by correcting any discrepancy between the two so that the two parts are properly set one on the other and accurate bonding is executed to the two parts.