Patent ID: 6569282
Filing Date: 2003-05-27
Classification: H01L

Abstract:
An etching apparatus, comprising:an etching part comprising: a processing vessel; a chuck for holding an obverse of a wafer by suction, the chuck being movable up and down and rotatable in the processing vessel; an etching liquid supplying device for supplying etching liquid to a reverse of the wafer during rotation of the wafer by the chuck in the processing vessel so as to etch the reverse of the wafer; a cleaning liquid jetting device for directing cleaning liquid to the reverse of the wafer during rotation of the wafer by the chuck so as to clean the reverse of the wafer after it has been etched; and an air jetting device for directing air to the reverse of the wafer during rotation of the wafer by the chuck so as to dry the reverse of the wafer after it has been cleaned; a wafer supply part for supplying the wafer to the etching part; a mount part adapted to receive a wafer frame at a wafer frame receiving position, to move the wafer frame to an upper part of the processing vessel, to mount the wafer on the wafer frame by adhering the reverse of the wafer to an adhesive sheet together with the wafer frame by bringing the chuck to an adhering position at which the reverse of the wafer is flush with a top face of the wafer frame with the obverse of the wafer held by the chuck, and to return to the wafer frame receiving position; a wafer frame supply part for supplying the wafer frame to the mount part at the wafer frame receiving position; and a wafer frame collection part for collecting the wafer frame from the mount part at the wafer frame receiving position.