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:
Jan. 08, 1991
Filed:
Dec. 21, 1989
Applicant:
Inventors:
Hinghung A Chan, Piscataway, NJ (US);
Michael A Oien, Chatham, NJ (US);
Assignee:
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; B23K / ;
U.S. Cl.
CPC ...
219 8511 ; 219 1041 ; 219-95 ; 219 1071 ;
Abstract
Disclosed is a method for selective soldering of components by inductive heating. A ferromagnetic material is provided as part of the components so that an applied electromagnetic field will create sufficient heat to melt the solder. The Curie temperature of the material is chosen to be just above the melting temperature of the solder to regulate the amount of heating.