Lead frame workholder and transport apparatus and method

Details Lead frame workholder and transport apparatus and method Lead frame workholder and transport apparatus and method

1991-04-04

1992-12-22

Lawrence, Evan

Coating processes

Nonuniform coating

Metal, glass, or ceramic base

118697, 118704, 118705, 118706, B05D 500, B05C 900, B05C 1302

Patent

active

051733382

ABSTRACT:
Lead frame workholder and transport apparatus for holding and transporting a strip of lead frames from one station to another, each lead frame having a pad and a locating pinhole, comprises a track having an input station at one end and an output station at the other end with an application station in between, a vacuum loader for loading a strip of lead frames onto the input station, a first transporter for contacting the lead frame strip in the input station by inserting a pin into the locating pinhole and moving the strip along the track to the application station, and a second transporter for moving the strip to the output station and into an exit carrier. A method of applying an epoxy layer to the pads of a strip of lead frames using the apparatus is disclosed.

REFERENCES:
patent: 4516673 (1985-05-01), Kashihara et al.
patent: 4624358 (1986-11-01), Satou
patent: 4958722 (1990-09-01), Kobayashi et al.

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