Patent ID: 9673067
Date: 2017-06-06
CPC Classifications: H01L

Claim:
1. A substrate processing apparatus, comprising: a substrate rotating device for holding and rotating a substrate; a cleaning device configured to clean the substrate, the substrate being rotated by the substrate rotating device at predetermined rotating speed; a movement device configured to move the cleaning device between a cleaning position and a separate position; and a first control unit configured to control the movement device so that the cleaning device located at the separate position starts moving toward the cleaning position before a rotating speed of the substrate held by the substrate rotating device reaches the predetermined rotating speed and the cleaning device reaches the cleaning position after a rotating speed of the substrate reaches the predetermined rotating speed, wherein, when a travel time is defined as a time required for moving the cleaning device from the separate position to the cleaning position by the movement device and an arrival time is defined as a time required for having the rotating speed of the substrate reach the predetermined rotating speed after starting rotation of the substrate by the substrate rotating device, the first control unit controls the movement device and the substrate rotating device such that, when the travel time is less than the arrival time, the cleaning device located at the separate position starts moving toward the cleaning position at a timing later than the start of the rotation of the substrate by the substrate rotating device by a difference between the travel time and the arrival time.