A method reduces the structure factor phase ambiguity corresponding to a selected reciprocal lattice vector. A gas supply is partially enclosed by the housing which provides propane to the mouth of a burner venturi located within the housing. The holding portions include a first holding portion at a front portion of the lead holder and a second holding portion at a rear portion of the lead holder. There is then formed contacting a pair of opposite ends of the seed layer a pair of patterned conductor lead layer structures. Metallic conductor paths are subsequently arranged on the plastic sheet thus produced, and the plastics sheet is then removed from the carrier member.