Purpose: To provide for the finger plating clean, no oxidation of the copper surface; to provide good conditions for plating gold finger plating. B. Requirements: polished finger bits should be no oxidation, glue stains, in 20 magnification no scratches, do not over-lapping against copper finger bit warped, loss and severe scratches. C. Frequently Asked Questions: grinding will cause excessive finger bit rough gold surface, copper warped, scratches, surface alloying; polishing causes bad surface oxide gold, gold star point surface exposed copper, gold surface roughness, surface matte gold, color, can not meet the gold surface tension and immersion tin test, drilling Tsui grinding machine, gold layer off and other defects. Advanced processing and manufacturing and photonics industry is China's characteristic and dominant industries, but also the development of China's key industries, the development of grinding technology these two industries have an important role. The project developed nanoscale efficient grinding technology has obvious advantages in the processing efficiency, processing costs, quality and precision machining, grinding machine, with good prospects. The above information is shared by the Friends of the Shenzhen-Hong Lean Automation Co., Ltd.! Shenzhen-Hong Friends of Lean Automation Co., Ltd. was established in 1996, with more than ten years of experience in the production diamond grinding tools rapid rise in selling quality wheel cutting, cutting, grinding market while the Taiwanese technology integration and development as PCB automation equipment, MDP 10 (05) drill grinding machines, automatic upper and lower ring machines, automatic drilling needle detection machines, drilling knife face detection, automatic fish machine, X-RAY hole detector. Production of automatic drill grinding machine, Acer Friends Lean Automation (online consultation), the mill provided by the Friends of the Shenzhen-Hong Lean Automation Limited. Friends Lean Automation Co., Ltd. Shenzhen-Hong (www.winsole.cn) (www.hy978.com) is an industry leader in Shenzhen, Guangdong, industrial automation control systems and equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness , the maximum meet customer needs. Friends of Lean leadership macro automation with the staff warmly welcome all inquiries negotiations to create macros Friends Lean Automation better future.