Patent ID: 11948823
Assignee: SCREEN HOLDINGS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A substrate treating apparatus, comprising:
a mount table;
a transport mechanism configured to transport a substrate to the mount table; and
a controller configured to control the transport mechanism, wherein
the mount table includes a plurality of shelves arranged in an up-down direction,
the shelves are each configured to place the substrate thereon in a horizontal posture,
the transport mechanism includes:
a hand configured to support the substrate and configured to include a suction portion, the suction portion configured to flow gas along a first face of the substrate and configured to suck the substrate without contacting the substrate on any part of the hand;
a hand driving unit configured to move the hand; and
a suction adjusting unit configured to adjust a flow rate of the gas supplied to the suction portion, and
the controller receives, before the hand is inserted between two of the shelves adjacent to each other in the up-down direction, a detected result which indicates a detected shape of a substrate either taken from one of the shelves by the transport mechanism or placed on one of the shelves by the transport mechanism, and changes a flow rate of the gas to be supplied to the suction portion, depending on the detected shape of the substrate;

a plurality of the substrates are classified into,
a first substrate that has a recess and does not include a protective plate made of glass, the recess being formed by a main portion of the substrate, located inward of a peripheral portion of the substrate, being recessed from the peripheral portion of the substrate; and
a second substrate that does not have the recess,
when a substrate taken from or placed on one of the shelves by the transport mechanism corresponds to the first substrate, the controller causes the suction adjusting unit to adjust the flow rate of the gas to be supplied to the suction portion, before the suction portion starts sucking the substrate, to a first flow rate, and
when a substrate taken from or placed on one of the shelved by the transport mechanism corresponds to the second substrate, the controller causes the suction adjusting unit to adjust the flow rate of the gas, supplied to the suction portion when the suction portion starts sucking the substrate, to a second flow rate larger than the first flow rate.