Patent ID: 8450658
Filing Date: 2013-05-28
Classification: G05B,H01L

Abstract:
1. A semiconductor processing apparatus comprising: a plurality of output sources used for processing of a wafer; an output measuring unit that measures outputs from the output sources; a measurement-data input unit that receives input of measurement data measured by the output measuring unit; an output-history storing unit that stores past and present measurement data input to the measurement-data input unit while distinguishing the measurement data for each of the output sources; an output-fluctuation monitoring unit that monitors, based on the measurement data stored in the output-history storing unit, output fluctuation in each of the output sources; an output control unit that separately controls, based on the output fluctuation monitored by the output-fluctuation monitoring unit, the outputs from the output sources; a first driving unit that moves the output measuring unit relative to the output sources; and a first driving control unit that performs, based on an instruction from the output-fluctuation monitoring unit, driving control for the first driving unit.