Patent ID: 9064908
Filing Date: 2015-06-23
Classification: H01L

Abstract:
1. A liquid processing apparatus comprising: a substrate retaining unit configured to horizontally retain a substrate; a process-fluid nozzle disposed above the substrate retained by the substrate retaining unit; a process-fluid supply mechanism configured to supply a chemical liquid to the process-fluid nozzle; a cover mechanism capable of covering the substrate from above; a vertical driving mechanism configured to vertically drive the cover mechanism between a lowered position at which the cover mechanism covers the substrate from above, and a raised position that is higher than the lowered position; an air hood configured to form a downflow of a clean gas; and a horizontal driving mechanism configured to horizontally drive the air hood between an advanced position at which the air hood completely shields the substrate from the cover mechanism, and a retracted position at which the air hood does not shield the substrate from the cover mechanism, wherein the cover mechanism is situated on the lowered position when the chemical liquid is discharged to the substrate by the process-fluid nozzle, wherein the lowered position is a position that is lower than the advanced position of the air hood, and the raised position is a position that is higher than the advanced position of the air hood.