Patent ID: 8777547

Claim:
An electronic device processing system, comprising: a vacuum transfer chamber; at least one process chamber coupled to the vacuum transfer chamber; and a robot apparatus positioned in the vacuum transfer chamber and adapted to transport a substrate to the at least one process chamber, the robot apparatus including: an upper arm having a first proximate end and a second remote end, said upper arm remotely drivable by a first motor positioned outside the vacuum transfer chamber, the upper arm capable of independent angular rotation about a shoulder axis in an X-Y plane in both a clockwise and a counterclockwise direction relative to a base, a forearm having a first proximate end and a second remote end, the first proximate end of the forearm coupled to the second remote end of the upper arm, the upper arm remotely drivable by a second motor positioned outside the vacuum transfer chamber, the forearm capable of independent angular rotation about a elbow axis in an X-Y plane in both a clockwise and a counterclockwise direction relative to the upper arm, and a wrist member having a first proximate end and a second remote end, the proximate end of the wrist member coupled to the remote end of the forearm, the wrist member includes an end effector adapted to carry the substrate, and wherein the wrist member and the end effector are capable of independent rotation in an X-Y plane about a wrist axis in a clockwise or a counterclockwise direction relative to the forearm, and the wrist member is remotely drivable by a third motor positioned outside the vacuum transfer chamber, wherein the first motor, the second motor, and the third motor are coupled to the upper arm, forearm and wrist member respectively via concentrically disposed shafts that extend from the respective motors, and a connector that connects a first shaft extending from the third motor to the wrist member, wherein the connector includes a first belt from the first shaft to a first intermediate member, a second belt from the first intermediate member to a second intermediate member at a level below the first belt, and a third belt from the second intermediate member to the wrist member at a level above the first belt.