Patent ID: 7305999
Filing Date: 2007-12-11
Classification: B08B,H01L,Y10S

Abstract:
1. A workpiece processing machine, comprising: a process chamber; a rotor supportable in the process chamber and adapted to hold a batch of substantially flat and evenly spaced apart workpieces for rotation in the process chamber about a spin axis oriented substantially perpendicular to the workpieces; a motor linked to the rotor; a first array of spray nozzles in the chamber adapted to spray a fluid toward the rotor; a second array of spray nozzles in the chamber adapted to spray a fluid toward the rotor, with the second array of spray nozzles radially and longitudinally offset from the first array of spray nozzles, and with the first and second arrays of spray nozzles fixed in position relative to the rotor; a liquid source connected to the first array of spray nozzles; and with the spray nozzles positioned so that substantially each workpiece is sprayed on both sides.