Patent ID: 9555437
Date: 2017-01-31
CPC Classifications: B05C,B08B,H01L

Claim:
1. A substrate processing apparatus for processing a substrate, comprising: a chamber including an upper portion and a lower portion which forms therein a sealed internal space by bringing said upper portion into contact with said lower portion; a chamber opening and closing mechanism for moving up and down said upper portion of said chamber relative to said lower portion of said chamber; a substrate holding part disposed in said chamber, for holding a substrate horizontally; a substrate rotating mechanism for rotating said substrate together with said substrate holding part about a central axis oriented in a vertical direction; a processing liquid supply part for supplying a processing liquid onto an upper surface or a lower surface of said substrate; a cup part positioned on an outer side in a radial direction relative to an annular opening formed around said substrate by moving up said upper portion to be apart from said lower portion of said chamber, for receiving said processing liquid spattering from said substrate being rotated and passing through said annular opening between said upper portion and said lower portion of said chamber; a cup discharge path for discharging said processing liquid received by said cup part while said upper portion is apart from said lower portion and said annular opening is formed; a chamber discharge path for discharging said processing liquid received by said chamber while said upper portion comes into contact with said lower portion and said chamber is sealed; and a control part for controlling said chamber opening and closing mechanism to switch a state of said chamber between a state that said upper portion is apart from said lower portion of said chamber and a state that said upper portion comes into contact with said lower portion of said chamber and to thereby switch a discharge path of said processing liquid between said cup discharge path and said chamber discharge path.