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:
Oct. 10, 1995
Filed:
Mar. 29, 1994
Applicant:
Inventors:
Kimiji Nishimaki, Tokyo, JP;
Takashi Kamiharako, Tokyo, JP;
Assignee:
Kaijo Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
228102 ; 228-45 ; 228-9 ; 2281805 ;
Abstract
The present invention provides a wire bonder and its method that is able to automatically inspect whether an initial ball set with a keyboard has been formed. Ball formed on the end of a wire fed from capillary is placed on lead by driving of a bonding head, and the diameter of that ball is measured by photographing that ball by a camera after bonding a portion of the wire to which ball is connected.