Patent ID: 11967508
Assignee: EBARA CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  F | IPC H

Claim 0:
1. A damper control system, comprising:
an exhaust damper connected to an exhaust duct attached to a partition wall of a processing module, the exhaust damper being able to adjust an opening degree between full opening and full closing;
a first pressure sensor arranged in an internal space of the partition wall; and
a controller configured to control the opening degree of the exhaust damper based on a pressure measured by the first pressure sensor, and the controller being configured to switch the opening degree of the exhaust damper to an opening degree smaller than a full opening on condition that a shutter configured to open and close an opening formed to the partition wall is opened,
wherein the damper control system further comprises a second pressure sensor arranged in the exhaust duct, and
wherein the controller is configured to:
control the opening degree of the exhaust damper based on a pressure measured by the first pressure sensor on condition that the shutter is closed; and
switch a monitoring target from the first pressure sensor to the second pressure sensor on condition that the shutter is opened.