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:
Jun. 09, 1998
Filed:
Dec. 23, 1996
Applicant:
Inventor:
Mitsuhiro Nakao, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219 5621 ; 21913021 ;
Abstract
In a wire bonding apparatus comprising a torch electrode for melting an end of a metallic thin wire to form a ball thereof, a high voltage detecting circuit for detecting a voltage between the metallic thin wire and the torch electrode in order to output the detected voltage as a voltage signal, a ball diameter calculator, and a ball diameter display device for displaying the ball diameter outputted from the ball diameter calculator, are further provided.