5Lecarpentier G, Mottet J, et al. High accuracy machine automated assembly for opto electronics [C]. Electronic Components and Technology Conference, Las Vegas, NV, USA. IEEE, 2000.1-4.
6Jiang H, Lian X, et al. Machine vision inspection system and accurate orientation technology of automatic BGA ball mounting [J]. Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C, 2005, 26 (6) :779-784.