Patent ID: 6192903
Filing Date: 2001-02-27
Classification: B08B,F26B,H01L,Y10S

Abstract:
A spin-processing apparatus for spin-processing an object to be processed, characterized by comprising:a cup body having a lower cup and a upper cup so mounted relative to the lower cup through a predetermined clearance as to be up/down movable;a rotation body provided within the cup body and retaining the object to be processed;drive means for rotationally driving the rotation body;an exhaust tube connected to the bottom of the lower cup to allow a gas in the cup body to be drawn off; anda scatter-proof cover provided at an inner wall surface of the upper cup to cover a circumference of the object retained by the rotation body, the scatter-proof cover being ring-like and having a lower end set to be higher in position than an upper surface of the object retained on the rotation body, and the lower end of the scatter-proof cover being curved outwardly toward a diameter direction.