摘要:
A heating and lifting mechanism (50) for positioning a semiconductor wafer within a processing chamber (54) is provided including a pedestal (58) for supporting the wafer within the process chamber, a drive shaft (64) extending downwardly from a lower region of the pedestal and exhibiting a lead screw (98) at a distal portion thereof, and a drive mechanism (90), which is coaxial with the drive shaft, for providing linear vertical translation of the shaft and pedestal. The device also includes a CONFLAT® assembly (66) located between the pedestal and drive shaft. The CONFLAT® assembly includes upper and lower substantially flat planar plates (68,70) removably connected to one another. The upper plate is connected to a lower region of the pedestal, and the lower plate is connected to an upper end of the drive shaft. The CONFLAT® assembly permits removal of the heater pedestal without removing the entire lift assembly.
摘要:
A dual stage load lock (10) is provided for transfer of semiconductor wafers (W) between an environment at atmospheric pressure and a high vacuum environment, such as a wafer processing system. The dual stage load lock includes a first load lock chamber (12) and a second load lock chamber (14) separated by a dividing ledge (20) which extends a distance inwardly from the inner wall of the load lock assembly. The lower load lock chamber selectively communicates with a transfer chamber (100) of the processing system, and is maintained at high vacuum. The upper load lock chamber selectively communicates with the external environment at atmospheric pressure. Therefore, the environment of the upper load lock chamber may vary between atmospheric pressure, when wafers are transferred between the load lock and the outside environment, and high vacuum, when the wafers are transferred between the first and second chambers of the load lock. The load lock may include modular chamber segments that can be arranged in a variety of configurations. A method for transferring wafers through the load lock is also provided.
摘要:
A heating and lifting mechanism (50) for positioning a semiconductor wafer within a processing chamber (54) is provided including a pedestal (58) for supporting the wafer within the process chamber, a drive shaft (64) extending downwardly from a lower region of the pedestal and exhibiting a lead screw (98) at a distal portion thereof, and a drive mechanism (90), which is coaxial with the drive shaft, for providing linear vertical translation of the shaft and pedestal. The device also includes a CONFLAT® assembly (66) located between the pedestal and drive shaft. The CONFLAT® assembly includes upper and lower substantially flat planar plates (68,70) removably connected to one another. The upper plate is connected to a lower region of the pedestal, and the lower plate is connected to an upper end of the drive shaft. The CONFLAT® assembly permits removal of the heater pedestal without removing the entire lift assembly.
摘要:
A dual stage load lock (10) is provided for transfer of semiconductor wafers (W) between an environment at atmospheric pressure and a high vacuum environment, such as a wafer processing system. The dual stage load lock includes a first load lock chamber (12) and a second load lock chamber (14) separated by a dividing ledge (20) which extends a distance inwardly from the inner wall of the load lock assembly. The lower load lock chamber selectively communicates with a transfer chamber (100) of the processing system, and is maintained at high vacuum. The upper load lock chamber selectively communicates with the external environment at atmospheric pressure. Therefore, the environment of the upper load lock chamber may vary between atmospheric pressure, when wafers are transferred between the load lock and the outside environment, and high vacuum, when the wafers are transferred between the first and second chambers of the load lock. The load lock may include modular chamber segments that can be arranged in a variety of configurations. A method for transferring wafers through the load lock is also provided.