Positioning apparatus for a circular substrate

Details Positioning apparatus for a circular substrate Positioning apparatus for a circular substrate

1985-12-02

1987-08-11

Larson, Lowell A.

Metal working

Means to assemble or disassemble

Means to assemble electrical device

198394, 414779, B23P 1900

Patent

active

046852069

ABSTRACT:
A positioning apparatus for positioning a circular substrate having a notch in a circumferential edge includes a notch sensor which senses the rotational position of the substrate about a center axis, a pushing member adapted to fit into the notch and moved toward the center axis to displace the substrate so as to engage positioning elements, and a detector that detects the fitting of the pushing member in the notch, the detector being movable with the pushing member.

REFERENCES:
patent: 4024944 (1977-05-01), Adams et al.
patent: 4483434 (1984-11-01), Miwa et al.
Vol. 18, No. 11, IBM Technical Disclosure Bulletin, pp. 3625 and 3626, Apr. 1976.

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