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:
Feb. 18, 2003
Filed:
Sep. 14, 2001
Applicant:
Inventors:
Thomas E. Salzer, Bedford, MA (US);
Aaron C. DerMarderosian, Lexington, MA (US);
Vincent C. Caccamesi, Wilmington, MA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 1/06 ; B23K 3/700 ; B23K 3/047 ;
U.S. Cl.
CPC ...
B23K 1/06 ; B23K 3/700 ; B23K 3/047 ;
Abstract
A thermosonic bonding apparatus including an ultrasonic transducer; a bonding tool including a high resistivity tip, and a low resistivity shaft extending from the tip; a tool support arm interconnecting the bonding tool and the ultrasonic transducer to vibrate the high resistivity bonding tool tip; and a voltage source connected to the bonding tool to locally heat the high resistivity bonding tool tip in a pulsed fashion.