Patent ID: 7240680
Filing Date: 2007-07-10
Classification: B08B,H01L,Y10S

Abstract:
1. A substrate processing apparatus which includes a rotor for rotating a plurality of substrates paralleled to each other at proper intervals, for processing the substrates while rotating the substrates by the rotor, the rotor of the substrate processing apparatus comprising: at least one holding member for holding the peripheries of the substrates in parallel arrangement; and at least one press member that is constructed so as to always apply a pressure on the peripheries of the substrates irrespective of a rotary and stationary state of the rotor, thereby holding the substrates so as to prevent the peripheries of the substrates from shifting with respect to the holding member, wherein the press member includes a plurality of pressure pieces arranged corresponding to the substrates respectively, and a rod for supporting the pressure pieces in a row, and wherein each of the pressure pieces has at least one drain hole for discharging liquid from the circumference of the rod due to a centrifugal force with the rotation of the rotor.