Patent ID: 11935731
Assignee: TOKYO ELECTRON LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 1:
2. The plasma processing apparatus of claim 1, wherein, in the stage, the heater is individually provided for each of a plurality of division regions of the mounting surface,
wherein the process controller is further configured to:
control the power supplied for each heater such that the heater provided for each of the division regions has another set temperature set for each of the division regions,
measure the power supplied in the unignited state and the transient state for each heater, while the power supplied for each heater is controlled such that the temperature of each heater becomes constant,
calculate the heat input amount from the plasma for each heater by using the power measured in the unignited state and the transient state to perform, for each heater, fitting on the calculation model, and
output, on the user interface, information indicating plasma density distribution based on the heat input amount from the plasma for each heater calculated.