Patent ID: 6793766
Filing Date: 2004-09-21
Classification: C23C,H01L,Y10S

Abstract:
Apparatus for processing multiple semiconductor wafers, the apparatus comprising:a transfer chamber; a first processing chamber mounted in fixed relation to the transfer chamber and having a first wafer-holding platform with a center; a second processing chamber mounted in adjustable relation to the transfer chamber and to the first chamber and having a second wafer-holding platform with a center, wherein the first and second processing chambers are disposed on a common side of the transfer chamber; a robot rotatably mounted within the transfer chamber and having first and second wafer-holding arms configured parallel to each other for inserting a pair of wafers simultaneously into the first and second chambers; and a mechanism disposed between the second chamber and the transfer chamber, adapted to selectively position the second chamber relative to the robot arms such that the wafers are centered and placed with a preselected degree of accuracy onto the respective platforms for efficient processing of the wafers.