• 제목/요약/키워드: Electrical uniformity

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Disign of $Hg_{1-x}Cd_xTe$ OMVPE System and ARIIV Reactor Chamber ($Hg_{1-x}Cd_xTe$ OMVPE System 과 ARIIV Reactor Chamber의 설계 및 제작)

  • ;J.D. Parsons
    • Journal of the Korean Vacuum Society
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    • v.2 no.4
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    • pp.410-415
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    • 1993
  • The direct growth OMVPE system, designed specificallyfor direct growth of Hg1-xCdxTe using annular rectant inlet inverted verticla (ARIIV) reactor, was constructed. This paper presents the detailed technical approach on a newly designed ARIIV reactor that increases Hg incorporation, imposes uniformity, and avoids the needs for temperature processing to create alloys by inter diffusion approach.

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Evaluation on the radio influence voltage of ${7^1/2}$ pin type domestic insulators (국산 핀애자의 라디오 방해 전압(RIV) 평가)

  • 양배덕
    • 전기의세계
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    • v.25 no.6
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    • pp.65-68
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    • 1976
  • For the RIV characteristics test of power apparatus, an indoor measuring system of radio influence voltage was set up and by means of this measuring unit SIV characteristics on the 7$^{1}$2/" pin-type domestic insulators were examined. According to the test data, RIV values of all the test pieces exceeded the maximum permissible level at 10kV applied voltage. The electrical resistivity of domestic semi-conductive glaze as good as importedone but un-uniformity of coating is turned out to be a main cause of failure.lure.

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Characteristic analysis of BLU parts directly related to improvement of brightness. (휘도 향상에 직접 영향을 미치는 BLU부품에 관한 특성 분석)

  • 김수용
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2001.07a
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    • pp.1100-1103
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    • 2001
  • (1) By comparing and analyzing the distribution of brightness as domestic lamps and Japanese products go thinner and lighter, we set an effective design standard. (2) By comparing and analyzing the feature, brightness, chromaticity and uniformity of domestic LGPs and Japanese products, early home-manufacturing and stabilization in home-manufacturing are possible. (3) By comparing and analyzing the distribution of brightness as sheets are varied, we can design an ideal sheet composition.

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The manufacturing Process Improvement usung Display of high VacuumExhausted Sealing Equipment by Tipless Manner (Tipless 방식에 의한 디스플레이 고진공 배기 밀봉장치 개발에관한 공정개발연구)

  • 김수용;박승곤;정원채
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2001.07a
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    • pp.817-820
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    • 2001
  • This machine is a high-vacuum exhaust sealing device which makes the inside of PDP element in high vacuum state, blows inactive gases into it and finally seals it. This machine consists of vacuuming parts, heating parts and exhausting parts. Applying the energy saving technology, this machine improves the temperature uniformity of vacuuming and heating parts.

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Investigation for warpage in the COG Module process (COG Module 공정에서의 Glass 휨 연구)

  • Kim, Byoung-Yong;Seo, Dae-Shik
    • Proceedings of the IEEK Conference
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    • 2008.06a
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    • pp.515-516
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    • 2008
  • We studied about new module technology to solve warpage problems that produce bending of cell in the LCD (Liquid crystal display). Characteristics of cell gap and glass bending of applying heat Panel's PAD part and cell at various temperature was investigated. When applies heat and compresses PAD party only in case of compressing COG(Chip on Glass), uniformity of cell gap that happen by glass bending by temperature of these compressing COG in the PAD party is decreased.

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The rapid synthesis of $MoSi_2$ for high-temperature furnace heating elements

  • Soh, Dea-Wha;Natalya, Korobova
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2001.11b
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    • pp.38-41
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    • 2001
  • The combustion characteristics of the disilicides molybdenum system have been studied experimentally. The pertinent reaction parameters that control self-propagating high temperature synthesis reactions have been examined. These include reactant particle size, powder mixing and compaction, reaction stoichiometry, diluents. The influence of experimental variables on integrity, uniformity, structure, and related material properties will be discussed. Formation mechanism of $MoSi_2$ during SHS might be different and depending on experimental conditions.

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Optimization of down stream plasma ashing process (감광제 건식제거공정의 최적화)

  • 박세근;이종근
    • Electrical & Electronic Materials
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    • v.9 no.9
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    • pp.918-924
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    • 1996
  • A downstream oxygen plasma is generated by capacitively coupled RF power and applied to photoresist stripping. Stripping rate (ashing rate) is measured in terms of RF power, chamber pressure, oxygen flow rate and temperature. Ashing reaction is thermally activated and depends on oxygen radical density. The ashing process is optimized to have the high ashing rate, good uniformity and minimal plasma damage using a statistical method.

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The rapid synthesis of MoSi$_2$ for high-temperature furnace heating elements

  • Soh, Deawha;Korobova, Natalya
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2001.11a
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    • pp.38-41
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    • 2001
  • The combustion characteristics of the disilicides molybdenum system have been studied experimentally. The pertinent reaction parameters that control self-propagating high temperature synthesis reactions have been examined. These include reactant particle size, powder mixing and compaction, reaction stoichiometry, diluents. The inf1uence of experimental variables on integrity, uniformity, structure, and related material properties will be discussed. Formation mechanism of MoSi$_2$ during SHS might be different and depending on experimental conditions.

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Fabrication of Superconducting thick films by MPMG method (용용법을 이용한 초전도 후막제작)

  • 강형곤;임성훌;정동철;한병성
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 1997.11a
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    • pp.182-184
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    • 1997
  • Superconducting thick films were fabricated with various paticle sizes on Allumina substrates by MPMG method. The sample of about 63${\mu}{\textrm}{m}$ in this experimented the size of particles was the best for uniformity and the number of Y211. In this experiment It is observed that powder size is very important to fabricate the superior thick finns.

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Design of Edge Type LED Backlight System for reduce Hot spot (Hot spot 감소를 위한 Edge Type LED Backlight 설계)

  • Kim, Yong-Suk;Lim, Sung-Kyoo
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2004.11a
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    • pp.551-554
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    • 2004
  • LED는 소비전력이 적고, 수명이 길어 LCD Backlight 용 광원으로 주목받고 있다. 현재 휴대전화기용 LCD에 많이 사용되고 있는 소형 LED Backlight의 경우 입광부에 LED의 개수가 육안으로 확인 가능할 정도의 Hot Spot이 존재한다. 이에 본 논문에서는 Reflector를 사용하여 광의 손실을 줄이고 도광판의 입광부에 산란 패턴을 설계하여 적용함으로써 도광판 입광부에서 122.7%의 휘도 상승효과와 73.4%의 휘도 균일도를 얻을 수 있었으며 이로 인해 Hot Spot을 감소시킬 수 있었다.

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