Disclosed are a system for workpiece cutting and sorting automation, and a method for controlling the system. The method includes defining a photoresist pattern on the top surface of the mask, the pattern including a periodic structure having a periodic spacing between elements of the structure. The enclosure includes a holder defining a first slot. The first electrode layer is at least partly air-bridged between the devices. The guard layer is biased so as to further inhibit current leakage during circuit operation.