Patent 7993093 was granted and assigned to Applied Materials on August, 2011 by the United States Patent and Trademark Office.
A two-axis automation system can be used to transfer and rotate wafers between horizontal and vertical orientations necessary for differing steps in a semiconductor fabrication process. The two rotational axes allow for the transfer and rotation to be done in a minimal space and with a minimum amount of swept volume. A transfer arm of the automation system can include a pair of load pads capable of loading and unloading a wafer processing chamber in a single sweep.