摘要 |
After a cassette is mounted on a cassette mounting part, a control unit instructs a substrate treatment apparatus to start treatment on substrates in the cassette. Thereafter, the control unit indicates, to the substrate treatment apparatus, a cassette on the cassette mounting part to which a substrate is transferred at completion of the treatment. If the transfer destination cassette for the substrate at the completion of treatment has not been indicated when a number of remaining treatment steps for the substrate reaches a predetermined set number, an alarm is given from the substrate treatment apparatus. This alarm is sent from the substrate treatment apparatus to the control unit, and the control unit indicates a transfer destination cassette for the substrate. |