Patent ID: 11862438
Assignee: TOKYO ELECTRON LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The plasma processing apparatus of claim 1, wherein, the mounting surface of the mounting table includes division regions, and the heater is disposed in each of the division regions,
wherein the heater controller controls the supply power to the heater such that the heater disposed in each of the division regions reaches a setting temperature for each of the division regions,
wherein the measurement element measures the supply power in the non-ignition state and the supply power in the ignition state for the heater disposed in each of the division regions while the supply power to the heater disposed in each of the division regions is controlled by the heater controller such that the temperature of the heater is constant, and
wherein the parameter calculator calculates the thickness of the consumable part for the heater disposed in each of the division regions by using the supply power in the non-ignition state and the supply power in the ignition state for the heater disposed in each of the division regions.