Methods and systems for fabricating and testing semiconductor devices are disclosed. The wheeled platform includes a rigid base, having a lower and an upper surface structurally interconnected by a plurality of structural ribs and flanges. The system further includes an anti-TR unit for thwarting the TR attempt by sending one or more registration response messages in response to the at least one registration message received from a switch. The slits define flap portions of the polymer sheet, and the slits each have an end that defines a hinge in the polymer sheet. Thus, the nanowire in the first region may have a thickness based on the thickness of the active layer in the second region, or the thicknesses may be different.