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송준엽(J.Y. Song),이창우(C.W. Lee),하태호(T.W. Ha),정연욱(Y.W. Jung),김영규(Y.G. Kim),이명철(M.C. Lee) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
In this study, automatic assembly and evaluation system for phone camera module is conceptually designed. The designed core(Auto focus & UV curing, Image Test) equipments adopts a clustering mechanism and compactible structure using index table for minimum tact time. Using a ball screw actuator and absolute encoder in each axis, we can verifies the repeatability and position accuracy of system within ±3㎛. In result of simulation test, the proposed system is expected up to 30% in productivity than manual operation.
송준엽(J.Y. Song),이승우(S.W. Lee),장주수(J.S. Jang) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
There are many methodologies for doing analysis of system’s reliability in early design stage. Among the methods, PRISM is, as compared to MIL-HDBK-217, a newly developed technology but not easy to use. Because PRISM provides models that predict a part failure rate and field database, called EPRD and NPRD that can be combined with prediction models. This paper presents some capabilities of the prediction models in PRISM and usability of EPRD and NPRD database in system level reliability prediction.