Patent ID: 6618889
Filing Date: 2003-09-16
Classification: B08B,G11B,H01L,Y10S

Abstract:
A disk-shaped-workpiece washing apparatus comprising:a carrier which holds a plurality of disk-shaped workpieces in a longitudinal arrangement at predetermined intervals; a washing section which scrubs the workpieces held by said carrier sequentially in groups of a plurality of the workpieces; and an intermittent transfer mechanism, wherein said washing section comprises: a lifting mechanism which lifts the plurality of workpieces to be washed from a row of workpieces held by the carrier in groups of a plurality of the workpieces to corresponding washing positions; driving means which are provided at each of said corresponding washing positions, and which forcedly cause the workpieces to rotate around an axes by coming into contact with the upper outer periphery of the lifted workpieces; and a pair of drivable and rotatable washing rollers provided for each of said washing positions which washes each workpiece while holding each rotating workpiece in between from both sides thereof; and wherein the washing positions of said plurality of workpieces are alternately provided at different heights; the driving means and the washing rollers at each washing position are also arranged alternately at different heights; and adjacent washing rollers at adjacent washing positions overlap each other one above the other.