Patent ID: 6945258

Claim:
A substrate processing apparatus, comprising: an apparatus body for applying a prescribed processing to a substrate, the substrate being reversed inside said apparatus body by a reversal unit; substrate transfer means for transferring the substrate inside said apparatus body; substrate detecting means for detecting the substrate present inside said apparatus body; memory means for storing information concerning the position and direction of the substrate present inside said apparatus body when the power supply of said apparatus body is cut off and for taking out the stored information when the power supply of said apparatus body is turned on again; alarm means for checking the information detected by said substrate detecting means with the information taken out of said memory means when the power supply of said apparatus body is turned on so as to generate an alarm when the detected information and the information taken out of said memory means differ from each other; alarm canceling means for canceling said alarm; control means for controlling said substrate transfer means to permit the substrate present inside said apparatus body to be recovered in a prescribed position outside said apparatus body; and recovery start-up means for emitting an instruction to start the substrate recovery to said control means, after the alarm is canceled by said alarm canceling means and after it has been confirmed that the substrate present inside said apparatus body is recovered under the state that the substrate faces in a prescribed direction.