Coating apparatus – Interfacing control of plural operations
Patent
1990-01-31
1991-12-10
Hoag, Willard
Coating apparatus
Interfacing control of plural operations
118708, 118710, 118730, 118 50, 118319, 137111, 417300, B05C 500
Patent
active
050708139
ABSTRACT:
Disclosed is a coating apparatus, comprising a gas exhaust rate controller disposed within an exhaust pipe connected to a cup which houses a substance to be treated, and a branch pipe connected to the exhaust pipe. The flow speed of the fluid within the branch pipe is measured, and the driving of the exhaust rate controller is controlled based on the measured value of the flow speed in accordance with the state of treatment of the object to be treated.
REFERENCES:
patent: 3730134 (1973-05-01), Kadi
patent: 4016828 (1977-04-01), Maher et al.
patent: 4760822 (1973-08-01), Evans
patent: 4821674 (1989-04-01), DeBoer et al.
patent: 4980204 (1990-12-01), Fujii et al.
Sakai Hiroyuki
Shirakawa Eiichi
Takekuma Takashi
Yamaguchi Chizo
Hoag Willard
Tel Kyushu Limited
Tokyo Electron Limited
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