WU Qiong, LIU Xian-yong, XU Chun-mei. The design of CCD in precise optics orientation based on glass-glass-frames[J]. 2006, (12): 54-56. DOI: 10.13873/j.1000-97872006.12.018.
the quality requirement of printed circuit board(PCB) becomes higher and higher.The traditional exposure machine with pin/ hole orientation mode could not satisfy the manufacturing PCB requirement with higher accuracy.Charge coupled divice(CCD)optics orientation is a completely new concept.The structure of CCD orientation system is designed.The accuracy can be got 10 μm by experiment.It is more superior than the traditional mode.