Patent ID: 7267130

Claim:
An apparatus for removing residuary pollution from a substrate, said apparatus comprising: a) a spin mechanism for holding and rotating said substrate; and b) a liquid supply mechanism for supplying at least one liquid onto said substrate being rotated, comprising b-1) a mist supply mechanism for mixing a gas with a processing liquid to generate mist and supplying said mist onto said substrate being rotated in a removing process for removing said residuary pollution from said substrate, wherein said mist supply mechanism comprises: a mixing part having a mixing room for mixing gas with said processing liquid to generate said mist; and a nozzle having a tapered channel for receiving said mist from said mixing room and supplying said mist onto said substrate, said channel having a tapered part being tapered-off toward a discharge end of said channel, and said mixing part further comprises: 1) a tube through which said gas is introduced into said mixing room; and 2) a ring-shaped space enclosing said tube, through which said processing liquid is introduced into said mixing room.