One aspect of the invention is directed toward a method of forming a conductive layer on a microfeature workpiece. Contact of the hydrocarbon feed with one or more catalysts at selected contacting conditions produces the total product. The power characteristics of the cable modem family can then be stored in an efficient manner in each cable modem by using interpolation. The fastening mechanism is adapted to extend along the first wall portion and through the second wall portion from one side thereof. A leg is attached to and extends away from the arcuate member.