A method of transporting substrates within an electronic device processing system includes rotating a first upper arm of a first arm assembly of a robot. The rotating causes a first end effector of the first arm assembly to move along a first path. The first arm assembly includes the first upper arm, a first forearm, a first wrist member, and the first end effector configured to support a first substrate. The method further includes rotating a second upper arm of a second arm assembly of the robot. The rotating causes a second end effector of the second arm assembly to move along a second path. The second arm assembly includes the second upper arm, a second forearm, a second wrist member, and the second end effector configured to support a second substrate. The second substrate does not overlap with the first substrate in any operating position of the end effectors.