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Design of Pad Type Air-Bearing for LCD Inspection  

Oh, Hyun-Seong (부산대학교 정밀기계공학과)
Lee, Sang-Min (부산대학교 정밀기계공학과)
Park, Jeong-Woo (부산대학교 나노융합기술학과)
Kim, Yong-Woo (부산대학교 나노융합기술학과)
Lee, Deug-Woo (부산대학교 나노융합기술학과)
Publication Information
Abstract
LCD (Liquid Crystal Display) is widely used electronic product. It needs too many processes such as PECVD (Plasma Enhanced Vapor Deposition), Sputtering, Photo-lithography, Dry etch. Each process is important but inspection process is more important because most companies emphasis on the six sigma. Recently, LCD inspection system is composed with inlet, inspector, outlet air pads. LCD is inspected on air pad which is shooting air from air hole. This paper studies on pad design of air bearing for LCD inspection to minimize LCD fluctuation. This design is able to reduce fluctuation and then satisfies CCD inspectional range. Also inspection pad needs to adequate stable area.
Keywords
LCD; Air-bearing; Air Pad; Glass fluctuation; Air guide;
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  • Reference
1 http://www.kwangwo.co.krI2002/k_lcd_detail.htm
2 Hausler, G., 'Optical preprocessing for automated inspection,' Optics and Lasers in Engineering, Vol. 10, Issues 3-4, pp. 251-263, 1989   DOI   ScienceOn
3 Holster, P. L. and Jacobs, J. A. H., 'Theoretical analysis and experimental verification on the static properties of externally pressurized air-bearing pads with load compensation,' Tribology International, Vol. 20, Issue 5, pp. 276-289, 1987   DOI   ScienceOn
4 NEWS, 'Small vacuum pump for precision applications,' World Pumps, Vol. 2004, Issue 453, p. 11,2004
5 BFI VDEH INST FUER ANGEWANDTE, 'Method and device for optically measuring the surface shape and for the optical surface inspection of moving strips in rolling and processing installations,' Korea Patent, App. 2004-7012273, 2004
6 Michael, H., Martin, S. and Hubert, R. M., 'Microscopic ellipsometry: imaging monolayer on arbitrary reflecting supports,' Thin Solid Films, Vol. 284-285, pp. 412-416, 1996   DOI   ScienceOn
7 Mohamed, F. and Marc, B., 'Comparison between externally pressurized gas thrust bearing with different orifice and porous systems,' Wear, Vol. 210, No. 1, pp. 311-317, 1997   DOI   ScienceOn
8 Sogo, S., 'Air lubrication-from design to manufacture,' public inst, p. 60, 1990