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. 29, 2002
Filed:
Jan. 19, 2001
Applicant:
Inventor:
Theodore J. Copperthite, Tustin, CA (US);
Assignee:
Orthodyne Electronics Corporation, Irvine, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 3/100 ; B23K 1/06 ;
U.S. Cl.
CPC ...
B23K 3/100 ; B23K 1/06 ;
Abstract
A wire dereeler for an ultrasonic wire bonder with a bond head has a support for rotatably supporting a reel of wire driven by a stepper motor in incremental steps. Two rollers receive the wire therebetween and are driven by a motor drive for rotating or torquing the rollers and tensioning the wire placed between the rollers. A linkage generally aligns the rollers in parallel with the wire therebetween. A photoelectric sensor determines a given amount of wire at a position between the bond head and the rollers and provides a signal for controlling the stepper motor driving the reel of wire.