To prevent opening/closing of an electromagnetic valve by a wrong manipulation from being forgotten or hazards caused by incorrect mixing of gases and to improve safety by indicating a gas flow in a gas pipe before the electromagnetic valve is actually opened/closed.
The substrate processing apparatus includes a state detection unit 44 for detecting an opening/closing request state and an opening/closing state of valves 2, 3, 36, and 38 installed at a gas pipeline 1; and an indication unit 44 for indicating a predicted state of gas flowing in the gas pipeline predicted according to the opening/closing request state of the valve and a state of gas flow flowing in the gas pipeline when the valve is opened, in a way that each state is distinguished.
OISHI MAMORU
KITAYAMA KANAKO
JPH06187581A | 1994-07-08 | |||
JPS6437690A | 1989-02-08 | |||
JP2001040481A | 2001-02-13 | |||
JP2002258940A | 2002-09-13 | |||
JP2008065821A | 2008-03-21 | |||
JP2002025918A | 2002-01-25 | |||
JPH08128079A | 1996-05-21 | |||
JPH06187581A | 1994-07-08 | |||
JPS6437690A | 1989-02-08 | |||
JP2001040481A | 2001-02-13 | |||
JP2002258940A | 2002-09-13 | |||
JP2008065821A | 2008-03-21 |
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