Patent ID: 11915947
Assignee: TOKYO ELECTRON LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A substrate processing apparatus, comprising:
a substrate holding unit configured to hold multiple substrates;
a processing tub configured to store a processing liquid therein;
a gas supply unit configured to supply a gas into the processing tub; and
a control unit configured to control the supply unit,
wherein the substrate holding unit comprises:
a supporting body having multiple supporting grooves each of which supports one of the multiple substrates with a vertically standing posture from below, respectively;
an elevating device configured to move the supporting body between a standby position above the processing tub and a processing position within the processing tub; and
wherein the control unit is further configured to:
before the multiple substrates supported by the supporting body are immersed in the processing liquid stored in the processing tub,

a) control the supply unit to decrease a flow rate of the gas to be supplied into the processing tub, and
after the multiple substrates are immersed in the processing liquid, which has been determined that the multiple substrates have been allowed to be immersed in the processing liquid, and the multiple substrates reach the processing position,

b) control the supply unit to increase the flow rate of the gas to be supplied into the processing tub such that the multiple substrates are to be processed.