Material or article handling – Device for emptying portable receptacle – With container opening means
Patent
1999-09-02
2000-12-12
Hess, Douglas
Material or article handling
Device for emptying portable receptacle
With container opening means
414217, 414416, 414939, 414937, B65G 4907
Patent
active
061589462
ABSTRACT:
An apparatus is provided with a plurality of stages of mounting bases on each of which is disposed upwardly orientated, narrow tapered pins around the periphery of a semiconductor wafer, and a plurality of stages of turntables, one for each of the mounting bases, with the mounting bases being capable of moving independently of the turntables. When a wafer is transferred from a transporter arm to the tapered pins, the peripheral edge of the wafer comes into contact with the inner peripheral surfaces of the tapered pins and the wafer is centered thereby. The turntable then picks up the wafer and aligns the orientation thereof. This makes it possible to position the centers of a plurality of wafers and position the orientations thereof in a simple manner.
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Hess Douglas
Tokyo Electron Limited
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