A stage assembly for moving and positioning a device includes a stage base, a stage, a stage mover assembly, and a reaction assembly. This invention is a method of polymerizing a monomer to form the polymer chain by applying a pulse voltage to the thin film comprising the monomer having a multiple bond in a desired position. VPU modules include: Discrete Cosine Transformation, Inverse Discrete Cosine Transformation, Quantization, Inverse Quantization, Variable Length Encoding, Variable Length Decoding and Motion Compensation. 2\u2032,3\u2032-Dideoxy-2\u2032,3\u2032-didehydroinosine sodium salt is hydrogenated using raney nickel catalyst in aqueous medium and then neutralized with hydrochloric acid to yield didanosine. These five levels account for an extremely strong authentication applicable to public networking on publicprivate computers, and even on TV (satellite, cable, DVD, CD AUDIO, software applications. Also, the solder balls provide sufficient space between the printed circuit board assembly and the bypass capacitors.