Process diagram to create small pitch wires. (A) The GaAs/AlGaAs superlattice, (B) after selectively etching the AlGaAs, (C) metal deposition while tilted at 36°, (D) contact of superlattice onto adhesive layer on silicon, (E) release of metal wires by etching GaAs oxide, and (F) after optional O2 plasma to remove adhesive layer.