• Journal of the Korean Vacuum Society
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• v.20 no.5
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• pp.327-332
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• 2011

Plasma polymerized styrene (ppS) thin films were prepared on ITO coated glass substrates for a MIM (metal-insulator-metal) structure with thermally evaporated Au thin film as metal contact. Also the ppS thin films were applied as organic insulator to a MIS (metal-insulatorsemiconductor) device with thermally evaporated pentacene thin film as organic semiconductor layer. After the I-V and C-V measurements with MIM and MIS structures, the ppS revealed relatively higher dielectric constant of k=3.7 than those of the conventional poly styrene and very low leakage current density of $1{\times}10^{-8}Acm^{-2}$ at electric field strength of $1MVcm^{-1}$. The MIS structure with the ppS dielectric layer showed negligible hysteresis in C-V characteristics. It would be therefore expected that the proposed ppS could be applied as a promising dielectric/insulator to organic thin film transistors, organic memory devices, and flexible organic electronic devices.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2013.05a
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• pp.185-186
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• 2013

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.687-688
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• 2010

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.10a
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• pp.640-643
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• 2008

In this work, a novel tunable MIM capacitor with the meshed electrode is proposed first in order to improve the tunability characteristics using fringe fields. The capacitors were fabricated on a low-resistivity Si substrate employing lead zinc niobate (PZN) thin film dielectric. The fabricated capacitor with the meshed electrode, whose line width and spacing was $2.5{\mu}m$, achieved the effective capacitance tunability of 31 % that is higher value of 18.5 % than that of the conventional capacitor with the rectangular-type electrode.

• Proceedings of the Korean Powder Metallurgy Institute Conference
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• 2006.09a
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• pp.213-214
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• 2006

The results of investigations in screw design for metall injection molding (MIM) will be presented. The consistency of cavity pressure, metering time and MFQ (monitoring of feedstock quality; parameter measured during metering) was chosen to compare different screws. A simulation program was used to optimize the conveying and melting mechanisms in the plastification unit. The theoretical background of this simulation programm will be explained.

• Proceedings of the Korean Powder Metallurgy Institute Conference
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• 2006.09a
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• pp.217-218
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• 2006

More and more applications or demands for machine parts etc are expected for AISI 440C (hereinafter referred to as "440C") Stainless Steel because of its characteristic features, i.e. high-strength as well as high-corrosion resistance. This research has enabled us to obtain sintered products with good quality even under a wide range of temperature by utilizing the pinning effect of NbC, improving the relevant sintering feature of 440C Stainless Steel in the MIM method.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2009.10a
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• pp.219-220
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• 2009

이번 실험에서는 TiN의 건식 식각 특성을 연구하기 위해 $BCl_3/Ar/N_2$ 유도 결합플라즈마를 이용하였다. BCl3와 Ar의 가스 비율이 $BCl_3$ (5 sccm)/Ar (15 sccm)/N (4 sccm) 인 상황에서 RF power와 DC bias, 그리고 process pressure을 식각변수로 설정하였다. TiN의 식각률은 Alpha-step 500으로 측정하였고 표면의 식각 후 화학반응은 XPS로 측정하였다.

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.11 no.3
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• pp.80-87
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• 1997

As a result of experimenting the temperature characteristics of origination voltage in Al/$AL_1,O_3/PI (nL)/Au, the sample of polyimide LB film and AI/$AL_1,O_3/Cls TCNQ(lOL)/Al, the difference of work function is found between upper and lower electrodes. If polyimide LB film is accumulated with Z type or becomes imide, the polarization of the film is not made. And AI/$AL_2,O_3/C-{15}TCNQ( IOL)/ AI which is the CI5 TCNQ LB film sample doesn't show the difference of work function because it has the same upper and lower electrode and the polarization is found on the film. As a result of experiment with MIM element of LB ultra thin film, Direct current more than hun¬dreds of m V is generated and it can be used for industrial power resources in the area of electricity, electronics and information communication.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.21 no.6
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• pp.583-590
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• 2010

In this paper, a novel CRLH-TL unit cell with controllable transmission zeros was proposed. Proposed composite right/left handed transmission line(CRLH-TL) unit cell is implemented in the form of the metal-insulator-metal(MIM) capacitors, the microstrip stub inductors, and the co-planar waveguide(CPW) inductor. And this proposed CRLH-TL generates two transmission zeros in lower/upper passband by the effort of electromagnetic couplings between each MIM capacitors and microstrip stub inductors. Using this proposed CRLH-TL, broad bandpass filter for UWB system was designed and fabricated. The measured results reveal that the two transmission zeros are observed in lower/upper passband and the overall size of the filter, excluding the feed line is about 8 mm$\times$8 mm, less then $\lambda_g$/4 on electric size.

• Journal of the Korean Society of Radiology
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• v.9 no.4
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• pp.249-255
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• 2015

In this study, through the additional information of the PET / CT images by utilizing the basic data of TPS clinical application on the basis of the image re-forming synthetic function, the True-D technology and MIM software for continued research and development in combination, based on the combination-work between the respective images, reducing the time and cost of useful reading in clinical wide use of image width, efficient, effective tool for tumor targeting at diagnosis and radiation therapy by use as, by using the precise therapeutic effect determination, the time taken to read in the clinical, unnecessary and expect to a can reduce the additional examination by the creation of tumor patients read reports and PACS such asWe expect to be utilized for compatibility development with other software to evaluate the performance of PET / CT equipment.