Patent ID: 11923220
Assignee: TOKYO ELECTRON LIMITED
Field: Measurement (Instruments)
Classification: CPC H  B  G | IPC B  G  H

Claim 0:
1. A substrate processing apparatus comprising:
a processing chamber;
a substrate holder disposed in the processing chamber and configured to hold a substrate;
a processing liquid supply configured to supply a processing liquid to the substrate held in the substrate holder;
an infrared camera configured to acquire an infrared image of the processing chamber; and
a controller configured to detect at least a state of the processing liquid based on the infrared image and monitor presence/absence of an abnormality;
wherein a plurality of processing chambers is provided,
the substrate holder, the processing liquid supply, and the infrared camera are provided for each of the plurality of processing chambers, and
the presence/absence of an abnormality includes presence/absence of an abnormality derived by comparing states of the processing liquid with each other detected based on infrared images acquired by the infrared cameras provided in the plurality of processing chambers, respectively.