Leadframe manufacturing apparatus using laser beams

Details Leadframe manufacturing apparatus using laser beams Leadframe manufacturing apparatus using laser beams

1998-04-20

2000-07-04

Mills, Gregory

Electric heating

Metal heating

By arc

21912173, B23K 2638

Patent

active

060842040

ABSTRACT:
A leadframe manufacturing apparatus includes a laser beam generator, a laser beam path tube through which laser beams travel, a leadframe transferring unit which transfers leadframe material to be irradiated by the laser beams, a controller connected to the laser beam generator and the leadframe transferring unit, which controls the transfer and irradiation of the leadframe material, a laser mask having a predetermined pattern, placed between the laser beam generator and the leadframe transferring unit, and a laser beam absorbing unit for supporting the leadframe transferring unit. A leadframe may also be manufactured by coating a leadframe material with a photoresist film capable of blocking the laser beams, and then patterning the photoresist film.

REFERENCES:
patent: 4978830 (1990-12-01), Millerick et al.
patent: 5580466 (1996-12-01), Tada et al.
patent: 5632083 (1997-05-01), Tada et al.
patent: 5662822 (1997-09-01), Tada et al.
patent: 5767480 (1998-06-01), Anglin et al.

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