A semiconductor workpiece holder used in electroplating systems for plating metal layers onto a semiconductor workpieces, and is of particular advantage in connection with plating copper onto semiconductor materials. A pleated filter plate is disposed between the support rings, and an air guide is disposed between the support rings parallel with the filter plate. In some cases, users may arrange tiles in an interface with as little as one continuous gesture. The vehicle antenna system can be used, for example, in conjunction with tire pressure sensors to detect low tire pressure in a particular tire. However, the sum total of n1 to n4 and the sum total of m1 to m4 are each 1 or higher. A lower bobbin is mounted on the button of the stator assembly.