• 제목/요약/키워드: EVAPORATION

검색결과 3,557건 처리시간 0.033초

Vapor Bubble Nucleation : A Microscopic Phenomenon

  • Kwak, Ho-Young
    • Journal of Mechanical Science and Technology
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    • 제18권8호
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    • pp.1271-1287
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    • 2004
  • In this article, vapor bubble nucleation in liquid and the evaporation process of a liquid droplet at its superheat limit were discussed from the viewpoint of molecular clustering (molecular cluster model for bubble nucleation). For the vapor bubble formation, the energy barrier against bubble nucleation was estimated by the molecular interaction due to the London dispersion force. Bubble nucleation by quantum tunneling in liquid helium under negative pressure near the absolute zero temperature and bubble nucleation on cavity free micro heaters were also presented as the homogenous nucleation processes.

배향 성장시킨 은박막중의 결함생성 (Defect Formation in Epitaxially Grown Silver Films)

  • 이기선;김기수
    • Applied Microscopy
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    • 제6권1호
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    • pp.33-38
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    • 1976
  • Formation of crystal defects which may occur during and after the vacuum deposition of silver films on rocksalt substrates were studied by electron microscopy. To obtain defect free films, various evaporation conditions, such as evaporation rate, substrate temperature, substrate treatments and annealing of films were examined. Stacking faults and micro-twins are dominant defects in silver films.

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샤도우 증착 효과를 이용한 마이크로 채널내 측벽 전극 제작 (Fabrication of electrodes on mcirochannel side wall using shadow evaporation effect)

  • 강길환;김규만
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2004년도 추계학술대회 논문집
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    • pp.1462-1465
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    • 2004
  • A new method to fabricate metal electrodes on side wall of the microchannel is presented. Coulter counter allows to count the number of cell passing through the microchannel by detecting impedance variation between two electrodes. The relative position of two electrodes is important for sensitivity of impedance measurement. 100nm thick Al electrodes are deposited on the channel side wall by means of shadow evaporation.

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Some Peculiarities of Photo-structural Transformations in Amorphous Chalcogenide Glassy Semiconductor Films

  • Prikhodko, O.;Almasov, N.;Korobova, Natalya
    • Journal of information and communication convergence engineering
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    • 제9권5호
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    • pp.587-590
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    • 2011
  • The absence of deep traps for electrons in the spectrum of $As_{40}Se_{30}S_30$ localized states films obtained by ion sputtering was determined. Bipolar drift of charge carriers was found in amorphous $As_{40}Se_{30}S_30$ films of chalcogenide glassy semiconductors, obtained by ion-plasma sputtering of high-frequency, unlike the films of these materials obtained by thermal evaporation.

TPS Analysis of Various Metal Plates for Belt Source Evaporation in AMOLED Manufacturing

  • Hwang, Chang-Hun
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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    • pp.1603-1606
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    • 2007
  • The TPS (Temperature Programmed Sublimation) technology has been developed to monitor the plane evaporation of the organic films and introduced in SID2007, P53.[4] The Alq3 organic film is deposited on various metal surface such as Cu, Ti, Invar, STS to sublimate. The TPS signal confirms that the Alq3 film consists of nano scale film phase and bulk phase on all the metal plates. The sublimation temperature of the Alq3 film was much lower ($130^{\circ}C$) than the vapor temperature ($265^{\circ}$) of the Alq3 powder.

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Treatment and Disposal of tow-level Radioactive Sludges by Solar Evaporation

  • Lee, Sang-Hoon
    • Nuclear Engineering and Technology
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    • 제4권3호
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    • pp.194-202
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    • 1972
  • 방사성 폐액처리에서 나오는 방사성 Sludge의 Solar energy에 의한 고화 처리방법은 가장 효과적이고 경제적인 처리방법의 하나이다. 본연구를 통해서 Sludge의 고화처리는 3月부터 8月사이가 가장 적정기이고, 또 Mass-transfer방법에 의해 증발량 추정에 대한 실험식을 유도하였다.

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Study of metal plate evaporation using LPS source for AMOLED

  • Hwang, Chang-Hun;Kim, Y.K.;Shin, Kee-Hyun;Ju, Sung-Hoo;Kwon, Jang-Hyuk
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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    • pp.1682-1686
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    • 2006
  • The Gaussian thickness profiles in metal plate evaporation using LPS sources have been studied for the first time. Based on our experimental data, it simulates the organic thin-film uniformity of 3% and very high material usage of 81% for large size AMOLED manufacturing.

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박막 Hall 소자제작에 관한 연구(1) (A Study on the fabrication of thin film Hall device(1))

  • 조판상
    • 대한전자공학회논문지
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    • 제13권6호
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    • pp.16-19
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    • 1976
  • InSb-Sn 박막 Hall소자를 InSb-Sn분말을 flash흡착법으로 슬라이드 글래스 위에 흡착하여 만들었다. 이 소자를 자속계로 사용할 때 특성이 재현성이 좋고 직선성이 양호하였다. InSb-Sn thin film Hall device Was drepared by flash evaporation of InSb-Sn powder on the Slide qlass. The Characteristics Curve of this device showcd good linearity and reproducibility.

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