>The pursuit of miniaturization of electronic products, the previously used perforated plug-in components have been unable to reduce the functionality of electronic products more complete, the integrated circuit (IC) used has no perforated components, especially large-scale, high-integration ICs, have to use surface patches element. >Product batching, production automation, the factory must produce high-quality products at low cost and high yield to meet customer needs and strengthen the development of market competitive electronic components; > The development of integrated circuits (ICs), the multi-application of semiconductor materials, the electronic technology revolution is imperative, chasing the international trend.