Device for the handling of small-sized semi-conductor chips

Details Device for the handling of small-sized semi-conductor chips Device for the handling of small-sized semi-conductor chips

1987-10-15

1989-03-28

Valenza, Joseph E.

Conveyors: power-driven

Conveyor for changing attitude of item relative to conveyed...

By conveying randomly faced items and turning items to...

198453, 198691, B65G 4714

Patent

active

048155837

ABSTRACT:
A device is used to handle small-sized semiconductor chips, such as ultra-high frequency chips delivered loose. In order to lift up these chips one by one at a precise point by means of a pipette, the device uses the charges of static electricity which make the chips adhere to an endless tape made of plastic. In a first, vertical part, the tape is loaded with chips in passing through a feeder bin. A stop retains all the chips on one side of the tape, and another stop lets through only those chips that are flat on the other side of the tape. In a second, horizontal part the tape passes through a tunnel in which the chips are oriented and then stored and taken up by a suction pipette. The invention can be applied to the assembly of semi-conductor chips in packages or on substrates.

REFERENCES:
patent: 2891668 (1959-06-01), Hunt
patent: 4081069 (1978-03-01), Ond

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