Automatic wafer orienting apparatus

Material or article handling – Article reorienting device – Article frictionally engaged and rotated by relatively...

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198394, 414754, 414787, B65G 4724

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active

044076274

ABSTRACT:
An automatic wafer orienting apparatus comprising a first orienting device for driving and rotating a wafer thereby orienting the wafer while utilizing a peripheral edge and an orientation cut thereof as the guide, a device for disengaging the thus oriented wafer from the first wafer orienting device, and a second wafer orienting device for re-orienting the wafer by pressing a lateral edge and an orientation cut thereof against orienting members provided on a wafer chuck.

REFERENCES:
patent: 3297134 (1967-01-01), Pastuszak
patent: 3820647 (1974-06-01), Waugh et al.
patent: 3865254 (1975-02-01), Johannsmeier
patent: 3982627 (1976-09-01), Isohata
patent: 4179110 (1979-12-01), Kosugi et al.
Wafer Centering Fixture; IBM Technical Disclosure Bulletin, vol. 14, No. 4; Sep. 1971.
Wafer Angular Alignment Detection and Positioning System; IBM Technical Disclosure Bulletin, vol. 14, No. 11; Apr. 1972.

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