Self-realigning vacuum pickup arrangement

Details Self-realigning vacuum pickup arrangement Self-realigning vacuum pickup arrangement

1991-10-24

1993-05-04

Stormer, Russell D.

Handling: hand and hoist-line implements

Miscellaneous compound implement

294 641, 29743, B66C 102, H05K 332

Patent

active

052074650

ABSTRACT:
A vacuum pickup arrangement, particularly for a pick and place system for automated testing of integrated circuits, employs a resilient, bellows-like retractable device for making a secure vacuum-tight engagement with the integrated circuit specimen. The creation of the vacuum-tight engagement causes axial collapse of the bellows-like arrangement whereby the specimen is brought into communication with one or more protuberances or edges which define a predetermined angular orientation of the integrated circuit specimen desired to be achieved. Laterally disposed alignment jaws are employed to align the integrated circuit specimen with a test socket at a remote location. However, when the specimen is returned, the resilient nature of the bellows automatically realigns the integrated circuit specimen with the location at which it was originally picked up.

REFERENCES:
patent: 4381601 (1983-05-01), Tamai et al.
patent: 4557514 (1985-12-01), Cushman et al.
patent: 4558755 (1985-12-01), Lundin
patent: 4749219 (1988-06-01), Bolle, Jr. et al.
patent: 4852247 (1989-08-01), Hawkshell
patent: 4887351 (1989-12-01), Porterfield et al.

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