Patent ID: 11873560
Assignee: TOKYO ELECTRON LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC C  G  H | IPC C  G  H

Claim 7:
8. A first controller serving as a high-level controller and configured to determine, based on a status signal of a device provided in a substrate processing apparatus, presence or absence of an abnormality in the device, so as to control the device, the status signal of the device being sent from a control board serving as a low-level controller,
wherein the substrate processing apparatus includes:
a processing container; and
a gas supply source configured to supply a plurality of gases into the processing container,

wherein the control board includes a memory and a transceiver, and is configured to collect the status signal of the device at a predetermined sampling interval for a predetermined time period in a predetermined collecting cycle and accumulate the status signal of the device in the memory, the device including a high-frequency power supply and a matcher, and the status signal for the device including a signal of a matching position of the matcher; and
the transceiver of the control board is configured to transmit accumulated status signals of the device in the memory of the control board that serves as the low-level controller to the first controller that serves as the high-level controller according to polling transmitted by the first controller at a time interval equal to or longer than the predetermined time period during which the control board collects the status signal of the device at the predetermined sampling interval, the time interval being longer than the predetermined sampling interval.