A method comprises providing a substantially planar slab of piezoelectric material
having a top surface. The method further comprises drilling a plurality of holes
through the top surface and into the slab. The method further comprises making
a plurality of cuts through the top surface and into the slab. The cuts form a
plurality of polygons that are generally centered about one of the holes. The method
further comprises plating the slab with an electrically conductive material. The
method further comprises removing the electrically conductive material from the
top surface of the slab. The method further comprises cutting the slab substantially
parallel to the top surface.