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Lee H. J.;Park H. J.;Lee N. K.;Kim S. S.;Lee H. W.;Hwang J. H.;Park J. H.
- Proceedings of the Korean Society for Technology of Plasticity Conference
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- 2005.05a
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- pp.245-248
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- 2005
This paper is concerned with manufacturing technology of thin foil tensile specimen using CIP(Cold Isostatic Press) and measurement of precision mechanical property. This thin foil tensile specimen manufacturing technology is a method that can make a metal thin foil specimen for micro tensile testing. We can get a burr free micro metallic thin foil specimen using this technology. For testing mechanical property of this micro thin foil, we use a nano scale material testing machine that was developed by KITECH. In this paper, micro tensile specimens of nickel and copper thin foil are fabricated with CIP and precision mechanical properties of these materials could be measured. We will expect that precision mechanical property of micro/nano material and component. Micro and Nano mechanical property can be measured using this technology and mechanical property data base of micro/nano material and component can be constructed.
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Lee N.K.;Park H. J.;Kim S. S.;Lee H. W.;Hwang J. H.;Park J. H.;Lee H. J.
- Transactions of Materials Processing
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- v.14 no.6 s.78
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- pp.509-513
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- 2005
This paper is concerned with manufacturing technology of thin foil tensile specimen using CIP(Cold Isostatic Press) and measurement of precision mechanical properties using micro tensile testing. We can get a burr free micro metallic thin foil specimen using this technology. For testing mechanical property of this micro thin foil, we use a nano scale material testing machine that was developed by KITECH. In this paper, micro tensile specimens of nickel and copper thin foil are fabricated with CIP and precision mechanical properties of these materials could be measured. We will expect precision mechanical property of micro/nano material and component.
https://doi.org/10.5228/KSPP.2005.14.6.509 인용 PDF KSCI

Jeong, Suk-Hoon;Kim, Young-Jin;Lee, Hyun-Seop;Jeong, Hae-Do
- Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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- 2008.06a
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- pp.121-122
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- 2008
Lithium Niobate (LN:LiNbO3) is a compound of niobium, lithium and oxygen. The characteristics of LN are piezoelectricity, ferroelectricity and photoelectricity, and which is widely used in surface acoustic wave (SAW). To manufacture LN device, the LN surface should be a smooth surface and defect-free because of optical property, but the LN material is processed difficult by traditional processes such as grinding and mechanical polishing (MP) because of its brittleness. To decrease defects, chemical mechanical polishing (CMP) was applied to the LN wafer. In this study, the suitable parameters scuh as pressure and relative velocity, were investigated for the LN CMP process. To improve roughness, the LN CMP was performed using the parameters that were the highest removal rate among process parameters. And, evaluation of optical property was performed by the optical reflectance and non-linear characteristic.
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Lee N.K.;Lee H.J.;Choi S.;Choi D.S.
- Proceedings of the Korean Society of Precision Engineering Conference
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- 2006.05a
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- pp.535-536
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- 2006
Researches about micro technology travel lively in these days. Such many researches are concentrated in the field of materials and a process field. But properties of micro materials should be known to give results of research developed into still more. In these various material properties, reliability data such as mechanical, optical, thermal property, etc is the basic property. In this paper, it is measured that is material properties of main BLU(Back Light Unit) components in LCD(Liquid Crystal Display). The pattern shape of prism sheet, diffuser film and reflective plate are measured by variable 3D scanning equipments. It is researched which is the method to measure an optimal 3D pattern shape in each components.
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