Patent ID: 8215891

Claim:
A substrate treating apparatus that transports a plurality of substrates with a transport device, comprising: a treating section for treating the substrates; a table for receiving a FOUP (Front Opening Unified Pod) for storing the plurality of substrates; an attaching and detaching device disposed between the treating section and the table for attaching and detaching a lid to/from an access opening of the FOUP placed on the table; the transport device being movable to a transfer position opposed to the access opening of the FOUP across the attaching and detaching device, and having a plurality of support members for supporting the plurality of substrates, the transport device being arranged to transport the substrates as held by the support members between the treating section and the FOUP; a substrate detecting device for detecting the plurality of substrates stored in the FOUP with the lid detached by the attaching and detaching device; a support member detecting device for detecting the support members of the transport device; and a control device for determining whether to transport the substrates, in a state of the lid detached by the attaching and detaching device and the transport device moved to the transfer position, based on a result of detection of the substrates by the substrate detecting device, and a result of detection of the support members by the support member detecting device; the apparatus further comprising a vertically movable detecting unit disposed between the attaching and detaching device and the transport device, wherein the substrate detecting device is mounted on the detecting unit to be opposed to the FOUP, while the support member detecting device is mounted on the detecting unit to be opposed to the transport device.