Patent ID: 8408859

Claim:
A wafer transfer device comprising: a first rotatable semiconductor wafer carrier receiver removably mounted to a first wafer carrier having an opening allowing entry of a wafer into the first wafer carrier and allowing egress of the wafer from the first wafer carrier; a second rotatable semiconductor wafer carrier receiver disposed at a position adjacent to the first semiconductor wafer carrier receiver and removably mounted to a second semiconductor wafer carrier having an opening through which the wafer is transferred through the opening of the first semiconductor wafer carrier; an actuator operatively coupled to at least one of the first semiconductor wafer carrier receiver and the second semiconductor wafer carrier receiver, the actuator operative to concurrently rotate the first semiconductor wafer carrier receiver and the second semiconductor wafer carrier receiver so that both openings of the first and second semiconductor wafer carriers are rotated and face one another; a moving mechanism coupled to the actuator, the moving mechanism comprising: a first rotating shaft configured to rotate the first semiconductor wafer carrier receiver between a first wafer entrance position and a first wafer reception position; an intermediate rotating shaft configured to rotatably connect the first semiconductor wafer carrier receiver and the second semiconductor wafer carrier receiver with each other; and a second rotating shaft configured to rotate the second semiconductor wafer carrier receiver between a second wafer entrance position and a second wafer reception position.