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. 25, 1986
Filed:
Nov. 07, 1983
Applicant:
Inventor:
James R Peterson, Garland, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
C25F / ; C25F / ; C23C / ; B23K / ;
U.S. Cl.
CPC ...
2041415 ; 204164 ; 2041 / ; 2042 / ; 204225 ; 204277 ; 219 5622 ;
Abstract
An electronic flame off (EFO) electrode used to form balls on bonding wire builds up layers of aluminum oxide during use. The aluminum oxide is removed by moving the EFO electrode next to a cleaning electrode, and causing a glow discharge to pass across the gap between them. The EFO electrode is charged negative with respect to the cleaning electrode, and a noble gas, such as argon, fills the region around the gap.