Laser bonding technique and article formed thereby

Details Laser bonding technique and article formed thereby Laser bonding technique and article formed thereby

1980-07-31

1982-03-16

Albritton, C. L.

Electric heating

Metal heating

By arc

219121ED, B23K 2700

Patent

active

043202810

ABSTRACT:
Electrically conductive leads (12) are bonded to pre-tinned ends (11) of a thin film, rolled capacitor (10). A dimple (20) is formed in the leads (12) resulting in an indentation (21) therein and a protrusion (22) on the opposite surface thereof. The protrusion (22) is placed in contact with the end (11) and a pulsed laser beam directed into the indentation (21) to heat the lead (12) in the vicinity of the protrusion (22) to reflow a portion of the pre-tinned ends (11) to form a bond therebetween.

REFERENCES:
patent: 974821 (1910-11-01), Lachman
patent: 2019457 (1935-10-01), Lodge
patent: 3060356 (1962-10-01), Beyer
patent: 3267249 (1966-08-01), Veth
patent: 3437736 (1969-04-01), Asher et al.
patent: 3463898 (1969-08-01), Takaoka et al.
patent: 3610874 (1971-10-01), Gagliano
patent: 3733685 (1973-05-01), Kauppila
patent: 4136298 (1979-01-01), Hansler

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