• Title/Summary/Keyword: ITO coated glass

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The Characterization of Structural and Optical Properties for rf Magnetron Sputtered $(BaSr)TiO_3$ Thin Film (Rf Magnetron Sputtering 방법에 의하여 제조된 $(BaSr)TiO_3$ 박막의 구조적, 광학적 특성 고찰)

  • Kim, Tae-Song;Oh, Myung-Hwan;Kim, Chong-Hee
    • Analytical Science and Technology
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    • v.6 no.2
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    • pp.239-246
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    • 1993
  • The structure of $(BaSr)TiO_3$ thin film deposited on ITO coated glass, bare glass and (100) Si substrates was not changed, but the crystallinity was improved by the polycrystalline ITO layer and (100) Si substrate. The composition of $(BaSr)TiO_3$ thin film deposited on ITO coated glass was nearly stoichiometric ((Ba+Sr)/Ti=1.08~1.09) and very uniform through all deposition process. But as the deposition temperature increases, the interdiffusion between grown thin film and ITO layer and between ITO layer and base glass is severer. $(BaSr)TiO_3$ thin film deposited on ITO coated glass substrate was highly transparent. The refractive index($n_f$) of $(BaSr)TiO_3$ thin film deposited on ITO coated glass was 2.138~2.286 as a function of substrate temperature.

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Development of Scratch Detecting Algorithm for ITO Coated Glass using Adaptive Logical Thresholding Method (ALT기법을 이용한 ITO 코팅유리의 결함 검출 기법 개발)

  • 김면희;이상룡
    • Journal of the Korean Society for Precision Engineering
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    • v.20 no.8
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    • pp.108-114
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    • 2003
  • This research describes a image-processing technique for the scratch detecting algorithm for ITO coated glass. We use the modified logical thresholding method (called adaptive logical thresholding method) for binarization of gray-scale glass image. This method is useful to the algorithm for detecting the scratch of ITO coated glass automatically without need of any prior information of manual fine-tuning of parameters.

Deveopement of Scratch Detection Algorithm for ITO coated Glass using Image Processing Technique (화상처리를 이용한 ITO 코팅 유리의 결함검출기법 개발)

  • 김면희;배준영;이태영;안경철;이상룡
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1275-1278
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    • 2003
  • This research describes a image-processing technique for the scratch detecting algorithm for ITO coated glass. The light emitter efficiency of Organic EL has a failing-off in quality due to many causes. One of the many causes was the defects of the surface in ITO coated glass. We use the logical level thresholding method for binarization of gray-scaled glass image. This method is useful to the algorithm for detecting scratch of ITO coated glass automatically without need of any prior information of manual fine tuning of parameters.

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Relationship between Working Parameter and Surface Nniformity of ITO coated Glass Substrate using Regression Analysis (회귀분석을 이용한 ITO 코팅유리기판의 표면균일도와 운전변수의 상관관계 분석)

  • 김면희;이상룡;이태영;배준영
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2004.10a
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    • pp.1353-1356
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    • 2004
  • In recent year, OLED(organic light emitted display) is used as the next generation device of FPD. OLED have been replacing the flat panel display device such as LCD, STN-LCD and TFT because this device is more efficient, economic and simple than those FPD devices, and this need not backlight system for visualization. The performance and efficiency of OLED is related with surface defect of ITO coated glass substrate. The typical surface defect of glass substrate is nonuniformity and bad surface roughness. ITO coated glass substrate is destroied for inspection about surface roughness and non-uniformity. Generally detection of the defects in the surface for ITO coated glass substrate is dependent on operator's experience. In this research, relationship between working parameter and surface non-uniformity is studied using regression analysis.

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Development of detection algorithm of the defected in the surface for ITO coated glass using image processing technique (영상처리기법을 이용한 유기 EL용 ITO 코팅 유리의 표면결함 검출 알고리즘 개발)

  • Kim, Myun-Hee;Park, Se-Hong;Lee, Sang-Ryong;Kim, Gwan-Soo
    • Proceedings of the KSME Conference
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    • 2003.04a
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    • pp.1173-1178
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    • 2003
  • Recently, Organic EL(Electro Luminescence) is interested in Flat Panel Display(FPD) department of new generation. This paper describes a image processing algorithm for the scratch detecting for ITO coated glass. We use the logical level thresholding method for binarization of gray-scaled glass image. This method is useful to the algorithm for detecting scratch of ITO coated glass automatically without need of any prior information of manual fine tuning of parameters.

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Development of scratch detecting algorithm for ITO coated glass Using image processing technique

  • Kim, Myun-Hee;Bae, Joon-Young;Park, Se-Hong;Lee, Sang-Ryong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.849-851
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    • 2002
  • This research describes a image-processing technique for the scratch detecting algorithm for ITO coated glass. We use the modified logical thresholding method for binarization of gray-scale glass image. This method is useful to the algorithm for detecting the scratch of ITO coated glass automatically without need of any prior information of manual fine-tuning of parameters.

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Structural and Dielectric Properties of the (Ba,Sr)$TiO_3$Thin Films Prepared by Sol-Gel Method (Sol-Gel법으로 제조한 (Ba,Sr)$TiO_3$ 박막의 구조 및 유전특성)

  • 이문기;정장호;이성갑;이영희
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.11 no.9
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    • pp.711-717
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    • 1998
  • BST(70/30) and BST(50/50) thin films were prepared by Sol-Gel method and studied about the microstructural and dielectric properties with Pt and ITO bottom electrodes. The stock solution was synthesized and spin coated on the Pt/Ti$SiO_2$/Si and Indium Tin Oxide(ITO)/ glass substrate. the coated films were dries at 350$^{\circ}C$ for 10 minutes and annealed at $750^{\circ}C$ for 1 hour for the crystallization. The thin films coated on ITO substrate were crystallized easily and the packing density and roughness of surface were better that those of films coated on Pt substrates. In the BST(50/50) composition the structural properties were similar to the BST(70/30) composition and grain size were decreased with increasing the contents of Sr. The dielectric constant was higher in the BST(50/50) composition compared with the BST(70/30) composition. Using the ITO substrate, the dielectric constant was higher than the Pt substrate while the dielectric loss was showed a reverse trend. The dielectric constant with and increase of temperature was decreased slowly.

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Preparation and properties of PbTiO$_3$thin films by MOCVD using ultrasonic spraying (초음파 분무 MOCVD법에 의한 PbTiO$_3$박막의 제조 및 특성)

  • 이진홍;김용환;이상희;박병옥
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.10 no.3
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    • pp.205-210
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    • 2000
  • Lead titanate thin films were fabricated on Si(100) wafer and ITO-coated glass substrates by metal organic chemical vapor deposition using ultrasonic spraying. When the ratio (Ti/Pb) of starting materials was 1.2, the films deposited on Si wafer had a single perovskite phase. The films deposited on ITO-coated glass had higher growth rate than that on Si wafer. As deposition temperature was increased from $530^{\circ}C$ to $570^{\circ}C$, dielectric constant was increased due to the increase of crystallinity and grain size. At $570^{\circ}C$, dielectric constant and dielectric loss of the films were 205 and 0.016, respectively. When the deposition temperature is higher than $600^{\circ}C$, dielectric constant was decreased.

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Quality Management of ITO Thin Film for OLED Based on Relationship of Fabrication and Characteristics (OLED용 ITO박막의 공정조건과 품질특성 추론에 근거한 품질관리)

  • Seo, Jeong-Min;Park, Keun-Young;Lee, Sang-Ryong;Lee, Choon-Young
    • Journal of Institute of Control, Robotics and Systems
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    • v.14 no.4
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    • pp.336-341
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    • 2008
  • Recently, research on a flat panel display(FPD) has focused on organic light-emitting display(OLED) which has wide angle of view, high contrast ratio and low power consumption. ITO(Indium-Tin-Oxide) films are the most widely used material as a transparent electrode of OLED and also in many other display devices like LCD or PDP. The performance and efficiency of OLED is related to the surface condition of ITO coated glass substrate. The typical surface defect of glass substrate is measured for electric characteristics and physical condition for transmittance and roughness. Since ITO coated glass substrate can be destroyed for inspection about surface roughness, sheet resistance, film thickness and transmittance, precise fabrication condition should be made based on the estimated relationship. In this paper, ITO films were prepared on the commercial glass substrate by the Ion-Plating method changing the partial pressure of gas(Ar, 02) and the chamber temperature between $200^{\circ}C$ and $300^{\circ}C$. The characteristics of films were examined by the 4-point probe, supersonic thickness measurement, transmittance measurement and AFM. We estimated the relationship between processing parameters(Ar gas, O2 gas, Temperature) and properties of ITO films (Sheet Resistance, Film Thickness, Transmittance, Surface Roughness).

Electrostatic bonding between Si and ITO-coated #7059 glass substrates (실리콘 기판과 ITO가 코팅된 #7059 유리 기판간의 정전 열 접합)

  • Ju, Hyeong-Kwon;Chung, Hoi-Hwan;Kim, Young-Cho;Han, Jeong-In;Cho, Kyoung-Ik;Oh, Myung-Hwan
    • Journal of Sensor Science and Technology
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    • v.7 no.3
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    • pp.211-217
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    • 1998
  • Si and ITO-coated #7059 glass wafers were electrostatically bonded by employing #7740 interlayer. It was inferred that the thermionic- electrostatic migration of $Na^{+}$ ions in the #7740 interlayer played an important role in the bonding process through SIMS analysis. The temperature and voltage required for reliable electrostatic bonding were in the range of $180{\sim}200^{\circ}C$ and $50{\sim}70V_{dc}$(10min), respectively. The low temperature Si-ITO coated glass bonding can be effectively applied to the packaging of field emission devices.

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