• Title/Summary/Keyword: Electronic Work Order Sheet

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Ceramic Green Sheet and Sintering Properties on Solvent Mixture Rate of Electrolyte for Solid Oxide Fuel Cells Fabrication (유기 용매 혼합비에 따른 고체산화물 연료전지 전해질 지지체용 세라믹 그린 시트성형 및 소결 특성)

  • Moon, Bong-Hwa;Lee, Kyung-Min;Lim, Kyoung-Tae;Lee, Chung-Hwan;Lee, Heun-Young;Yoon, Jung-Rag
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.25 no.6
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    • pp.426-430
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    • 2012
  • The properties of green sheet were investigated in order to understanding an effects of organic solvent mixture ratio for solid oxide fuel cells fabrication. The purpose of this work is to optimize the slurry condition using the design of experiment to improve green sheet properties. The elongation increased with increasing amount of binder and solvent. With increasing amount of solvent, the air permeability increased but the tensile strength decreased. The best properties of the green sheet appeared amount of the binder 17 wt%, solvent 35 wt% and powder 48 wt%. The optimum condition of green and sintered density for solid oxide fuel cells fabrication was obtained in the sample pressured at 800 $kgf/cm^2$.

An Application of XML Based Manufacturing Information for Forming Shop (XML을 이용한 곡면 가공 시스템의 정보 구조화에 관한 연구)

  • Ha, Kwang-Cheol;Lee, Jang-Hyun;Oh, Dae-Kyun;Shin, Jong-Gye;Ryu, Cheol-Ho
    • Journal of the Society of Naval Architects of Korea
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    • v.41 no.6
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    • pp.126-133
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    • 2004
  • As the automation of ship production system proliferates, it is unavoidable to move the real machinery, facility, application software, and virtual environment from the heterogeneous data environment to the integrated one. However, it is a prevailing situation that each component operates under the different environment, due to the inability of interchanging the data in a structured manner between the components. The issue is obstacles to improvement of the application system. To facilitate seamless exchange of data among the manufacturing systems, STEP, PDML, and XML has been tried by other studies. This study has investigated how XML data can be applied to exchange the data among the ship production system components. XML data is applied to the forming shop in shipyard to overcome the present difficulties on sharing and exchanging of the information. An example of forming information is represented by XML to demonstrate the feasibility of the proposed approach. In addition, an application of XML information applicable to virtual factory and electronic work order sheet is included.

Emission Properties of P-LED EL Devices Based on ZnS:Mn,Cu (ZnS:Mn,Cu에 기초한 파우더형 EL소자의 발광특성)

  • 박수길;조성렬;손원근;김길용;이주성
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 1998.06a
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    • pp.147-150
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    • 1998
  • Since P-ELD(powders type electroluminescent device) phenomena were found by G.Destriau at first In 1936, lots of studying was performed in order to realize surface emission devices and flat panel display as a backlight. Due to the problem of low luminance and color and so on, it was delayed. Recently using electric field and thermal effect which can change it\`s molecular arrangement, it can be developed using photoelectric properties of P-ELD. P-ELD in this study was prepared by casting method. Basic structure is ITO/Phosphor/insulator/Al sheet, each layer was mixed by binder, which concentration 11p(poise) for phosphor, 8p(poise) fort insulator. Dielectric properties was investigated first and emission properties of P-ELD based on ZnS:Mn,Cu/ZnS:Cu,Br mixture. P-ELD prepared in this work exhibits about 100cd/㎡ 1-kHz simusoidal excitation.

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The Study of Ag Thin Film of Suitable Anode for T-OLED: Focused on Nanotribology Methode (UV 처리에 의한 T-OLED용 산화전극에 적합한 Ag 박막연구: Nano-Mechanics 특성 분석을 중심으로)

  • Lee, Kyu Young;Kim, Soo In;Kim, Joo Young;Kwon, Ku Eun;Kang, Yong Wook;Son, Ji Won;Jeon, Jin Woong;Kim, Min Chul;Lee, Chang Woo
    • Journal of the Korean Vacuum Society
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    • v.21 no.6
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    • pp.328-332
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    • 2012
  • The work function of Ag (silver) is too low (~4.3 eV) to be used as an electrode of T-OLED (Top Emission Organic Light Emitting Diode). To solve this weakness, researches used plasma-, UV-, or thermal treatment on Ag films in order to increase the work function (~5.0 eV). So, most of studies have focused only on the work function of various treated Ag films, but studies focusing on nanomechanical properties were very important to investigate the efficiency and life time of T-OLED etc. In this paper, we focused on the mechanical properties of the Ag and $AgO_x$ film. The Ag was deposited on a glass substrate with the thickness of 150 nm by using rf-magnetron sputter with the power was fixed at 100 W and working pressure was 3 mTorr. The deposited Ag film was UV treated by UV lamp for several minutes (0~9 min). We measured the sheet resistance and mechanical property of the deposited film. From the experimental result, there were some differences of the sheet resistance and surface hardness of Ag thin film between short time (0~3 min) and long time UV treatment. These result presumed that the induced stress was taken place by the surface oxidation after UV treatment.

Metallizations and Electrical Characterizations of Low Resistivity Electrodes(Al, Ta, Cr) in the Amorphous Silicon Thin Film Transistor (비정질 실리콘 박막 트랜지스터 소자 특성 향상을 위한 저 저항 금속 박막 전극의 형성 및 전기적 저항 특성 평가)

  • Kim, Hyung-Taek
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 1993.05a
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    • pp.96-99
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    • 1993
  • Electrical properties of the Thin Film Transistor(TFT) electrode metal films were investigated through the Test Elements Group(TEG) experiment. The main purpose of this investigation was to characterize the electrical resistance properties of patterned metal films with respect to the variations of film thickness and TEG metal line width. Aluminum(Al), Tantalum(Ta) and Chromium(Cr) that are currently used as TFT electrode films were selected as the probed metal films. To date, no work in the electrical characterizations of patterned electrodes of a-Si TFT was accomplished. Bulk resistance$(R_b)$, sheet resistance$(R_s)$, and resistivities($\rho$) of TEG patterned metal lines were obtained. Electrical continuity test of metal film lines was also performed in order to investigate the stability of metallization process. Almost uniform-linear variations of the electrical properties with respect to the metal line displacements was also observed.

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