Patent ID: 7793671
Filing Date: 2010-09-14
Classification: H01L,Y10S

Abstract:
1. An apparatus for cleaning substrates, comprising: a substrate support including a base plate, at least three support rods extending upright over the base plate to support a plurality of substrates horizontally as spaced vertically one above the other, and a position adjusting device, wherein the base plate has an upper surface and a groove extending in the upper surface in an arc along the outer periphery of the upper surface, the support rods comprise at least one fixed rod fixed to the base plate, and at least one movable rod disposed in the groove, and the position adjusting device comprises a horizontal rod extending in a radial direction of the base plate and having one end to which the movable rod is coupled, a vertical rod fixed to the horizontal rod at the other end thereof, and a driving mechanism operatively operatively connected to the vertical rod so as to rotate the vertical rod about its longitudinal axis and thereby move the movable rod along the groove in the upper surface of the base plate between an open position at which a passage between two of the support rods is wider than a diameter of substrates and a closed position at which the passage is narrower than the diameter, whereby substrates having said diameter can be inserted, as oriented horizontally, between said two of the support rods when the at least one movable rod is in the open position thereof and substrates having said diameter and supported by the substrate support are confined between the support rods when the at least one movable rod is in the closed position thereof; a rotating device having a vertical cylindrical shaft through which the vertical rod of the position adjusting device extends and whose longitudinal axis is coincident with that of the vertical rod such that the vertical cylindrical shaft and the vertical rod are concentric, and a driving unit, wherein the vertical cylindrical shaft is connected to the base plate of the substrate support, and the driving unit is operatively connected to the vertical cylindrical shaft so as to rotate the vertical cylindrical shaft about its longitudinal axis and thereby rotate the base plate of the substrate support about an axis coincident with the longitudinal axis of the vertical rod; and a liquid supply system that dispenses cleaning liquid onto all of the substrates supported by the substrate support.