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Lean 6 Sigma에 의한 LCD TV의 Modular Cell Line 구축에 관한 연구
정영관(Young-Kwan Jeong),최성대(Seong-Dae Choi),유종규(Chong-Kyu Yoo),정선환(Seon-Hwan Cheong) 한국산업융합학회 2010 한국산업융합학회 논문집 Vol.13 No.1
Lean 6 sigma has recently been used to describe a management system which combines lean management and 6 sigma. The marriage between Lean manufacturing and 6 sigma has proven to be a powerful tool for cutting waste and improving the organization operations. Time and quality are the most important metrics in improving any company's production and profit performance. lean 6 sigma is a management innovation for improving production efficiency, process quality, cost reduction, investment efficiency and customer's satisfaction. in this paper, Advanced cell line is builded the home appliance goods of the LCD TV final assembly line of domestic company line, training the multi-skilled man and controlling the production information system based on Lean 6 sigma.
최성대(Seong-Dae Choi),정선환(Seon-Hwan Cheong),권현규(Hyun-Kyu Kwon),정영관(Young-Kwan Jeong),홍영배(Yong-Bae Hong) 한국산업융합학회 2007 한국산업융합학회 논문집 Vol.10 No.4
Glass-to-metal contact should be prevented in the design of any structural glass component. Because glass is extremely brittle and will fracture readily if even a small point load is applied. If the assembly includes a glass component supported by metallic structure, designers should provide a pliable interface of some kind between the two parts. But there happens high demand of glass-to metal contact in semiconductor industries due to adoption of dry cleaning process as one of the good solution to reduce running cost - carry out equipments cleaning with high corrosive and etching gas such as CF4 with keeping process temperature as the same as high service temperature. Therefore the quartz glass have to be received compression by direct contact with metal as the form of weight itself and vacuum pressure and fatigue by vibrations caused by process during the process. In this paper investigation will be carried out on fracture behavior of quartz glass contacted with metal directly under local load and fatigue given by process vibration with apparatus which can give lox\cal load and vibration through PZT ceramics to give guideline to prevent unintended fracture of quartz glass.
최성대 ( Seong-dae Choi ),정선환 ( Seon-hwan Cheong ),정영관 ( Young-kwan Jeong ),김기만 ( Gi-man Kim ),홍영배 ( Yong-bae Hong ) 한국산업융합학회 2007 한국산업융합학회 논문집 Vol.10 No.3
Quartz glass are used in semiconductor industries as the reaction furnace, wafer carrier and accessaries. During the process the quartz glass received compression by direct contact with other quartz glass ware and metal as the form of weight itself and vacuum pressure and fatigue by vibrations caused by process. Even as the other ceramic materials quartz glass have high compressive strength but often there happened crack and breakage of quartz glass resulted in a great damage in the process. In this paper investigation will be carried out on fracture behavior of quartz glass under local load to give guideline to prevent unintended fracture of quartz glass.