Method of soldering leads to electrical components

Details Method of soldering leads to electrical components Method of soldering leads to electrical components

1994-01-14

1994-10-25

Heinrich, Samuel M.

Metal fusion bonding

Process

Plural joints

228224, 228249, 228902, 437182, 437205, B23K 3102, H01L 2160

Patent

active

053581695

ABSTRACT:
A method of soldering leads to electrical elements, such as resistors, in which a ribbon of solder, having a coating of flux, is sandwiched between a plurality of electrical elements and a plurality of leads. Hydrogen flames then cut the ribbon at points between the electrical elements and also between the leads. The hydrogen flames are then directed at the leads to melt the solder and cause extending portions of the ribbons to be drawn towards the leads.

REFERENCES:
patent: 3750252 (1973-08-01), Landman
patent: 4484704 (1984-11-01), Grassauer et al.
patent: 4724995 (1988-02-01), Zettl
patent: 5040717 (1991-08-01), McGaffigan
patent: 5180097 (1993-01-01), Zenshi
patent: 5252944 (1993-10-01), Caddock, Jr.
patent: 5254969 (1993-10-01), Caddock, Jr.
patent: 5271549 (1993-12-01), Tohyama
Schunk Automation AG, Higher Cost Saving Potential In Assembly Through Automated Soldering Technology, Nov. 1992, Brugg/Biel, Switzerland.
Ernest Spirig Company, The Best Choice! . . . SPIRFLAME.RTM. (Catalog Sheet), Sep. 1993, Rapperswil, Switzerland.

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