Patent ID: 6015478
Filing Date: 2000-01-18
Classification: C23C

Abstract:
A vacuum processing method using a vacuum processing apparatus comprising a process chamber capable of being evacuated, gas introducing means for introducing a process gas including a plurality of gasses into said process chamber, and a gas quantity detector for outputting a gas quantity signal corresponding to a partial pressure of each of said plurality of gasses contained in the process chamber, said gas quantity detector having a set detection sensitivity set in response to a sensitivity calibration signal externally supplied and generating the gas quantity signal at the set detection sensitivity, said vacuum processing method comprising:a step of outputting from the gas quantity detector a gas quantity signal of a reference gas, selected from the plurality of gasses contained in the process gas;a step of generating a sensitivity calibration signal in response to the gas quantity signal of said reference gas sent from said gas quantity detector;a step of sending the sensitivity calibration signal to said gas quantity detector;a step of adjusting the sensitivity of the gas quantity detector so that a magnitude of the gas quantity signal for said reference gas reaches a target value.