Patent ID: 7067033
Filing Date: 2006-06-27
Classification: B05C,B05D,H01L,Y10S

Abstract:
1. A chemical liquid processing apparatus for processing a substrate using chemical liquid, comprising: a substrate holding portion for holding a substrate; a plate disposed above said substrate holding portion and having a vertically extending air intake hole and a liquid contacting surface; a flow control wall having a top face extended over the substrate holding portion so as to surround said substrate holding portion and for preventing air around the substrate holding portion from being sucked; and a rotating mechanism for rotating said plate, wherein a side face of said substrate holding portion has an invertedly-inclined gradient, the top face of said flow control wall having a gradient substantially parallel to the gradient of the side face of said substrate holding portion, a negative pressure is capable of being generated between the plate and the substrate held by the substrate holding portion by rotation of said plate, so that a gas flow is generated between said substrate and said plate by sucking air through said air intake hole.