Treatment object supporting device

Details Treatment object supporting device Treatment object supporting device

1993-05-25

1994-08-02

Jones, W. Gary

Coating apparatus

Work holders, or handling devices

269903, 414937, 414938, 118728, B05C 1302

Patent

active

053342577

ABSTRACT:
A plurality of ring trays supporting loaded treatment objects are arranged in parallel at predetermined spacing in the vertical axis direction and are supported by rods at a minimum of three locations separated from the rod couplings. Cutouts are provided in each ring tray that do not extend to the ring tray center open area. Supporting teeth are provided on the arms driven by drive devices and are inserted via the cutouts. The supporting teeth straddle the ring tray and are shifted relatively on both sides of the vertical direction, and can exchange the wafers between the ring tray and the supporting teeth. By this, problems occurring with regard to various types of heat treatment of the treatment objects, such as treatment object slippage, can be prevented. In addition, a plurality of treatment objects can be exchanged at one time, thereby allowing the exchanging time to be shortened.

REFERENCES:
patent: 5162047 (1992-11-01), Wada et al.

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