• Title/Summary/Keyword: silver paste

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Transferred charge density and Optical Property on Powder Electroluminescent device (후막 EL 소자의 광학 및 이동전하밀도 특성)

  • 오주열;이종찬;박대희
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 1999.05a
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    • pp.286-290
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    • 1999
  • Electroluminescence is occurred when phosphor is located in electric field. In this paper, we made powder electroluminescent device (PELD) with structured ITO film/Phosphor/Insulator/Silver paste. The transparent electrode was ITO film and green(2704-01), orange(2702-02) and blue-green(2703-01) were used as phosphor. The insulator was BaTiO$_3$ and $Y_2$O$_3$, back electrode was silver paste. To investigate electrical and optical properties of PELDs, EL spectrum, Brightness, Transferred charge density using Sawyer-Tower\`s circuit was measured.

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Properties of Powder Electroluminescent Device with $Y_2O_3 and BaTiO_3$ (유전체 종류에 따른 후막 전계발광(EL) 소자의 특성)

  • 이종찬;박춘배;박대희
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 1999.11a
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    • pp.582-585
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    • 1999
  • Electroluminescence is occurred when phosphor is located in electric field. In this paper, we made powder electroluminescent device (PELD) with structured ITO film/Phosphor/Insulator/Silver paste. The transparent electrode was ITO film and green(2704-01) and orange(2702-02) and blue-preen(2703-01) were used as phosphor. The insulator was BaTiO$_3$ and $Y_2$O$_3$, bark electrode was silver paste. To investigate electrical and optical properties of PELDs, EL spectrum, Brightness . Transferred charge density using Sawyer-Towers circuit was measured.

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Electrical and Adhesion Properties of Photoimageable Silver Paste with Glass Addtion

  • Lim, Jong-Woo;Kim, Hyo-Tae;Lee, Eun-Heay;Yoon, Young-Joon;Koo, Eun-Hae;Kim, Jong-Hee;Park, Eun-Tae;Lee, Jong-Myun
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.11a
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    • pp.208-208
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    • 2008
  • Micro patterning of conductor line/space on LTCC green sheet in the LTCC module is an important process for miniaturization in 3D integrated circuits. This work presented the effect of inorganic binders on the microstructure, adhesion, electrical resistivity, shrinkage and line/space resolution, which is a part of study in photoimageable conductor paste. The photoimageable conductor paste contains silver powder, polymer binder, monomer, photo-initiator, UV absorber, and solvent. The inorganic binders were furnished with varied weight percentage of anorthite, diopside and MLS-62 glass frits from 0% to 7%. The Line/space sizes thus obtained was under 25 micron.

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A Study on Properties of UV-Curing Silver Paste by Dispersing Agent Characteristic (분산제 특성에 따른 UV 경화형 Ag Paste의 물성 연구)

  • Son, Min-Jeong;Nam, Su-Yong;Kim, Sung-Bin
    • Journal of the Korean Graphic Arts Communication Society
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    • v.30 no.2
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    • pp.59-68
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    • 2012
  • As one of the eletronic device industries has been developed by using a recent printing method, the consumption of Ag paste has been on the rise as well. The printing method has simple processes in comparison with other methods. Also it enables to be large-scaled and to lower price ranges. If UV curing system would be applied to the printing method, energy consumption and dangerousness from curing system can be minimized in a short period of time so that its method can be more eco-friendly. This study conducted an experiment in order to make UV curing Ag paste which is feasible to implement micro patterns with different dispersing agents. The purpose of the study is to analysis the suitable printability for micro pattern and to test dispersibility, hardening properties, conductivity and adhesive stength by measuring viscosity, TI(thixotropy index), G', G", $tan{\delta}$(G"/G') after making paste. We have experimented with four dispersing agents. After We did an analysis of characteristic of rheology, conductivity and adhesive stength, etc, We confirmed that the paste added FP 3060 has excellent dispersibility, conductivity and adhesive stength. If the paste has excellent dispersibility, we will expect that micro pattern is made by that.

Comparisons of Electrical Conductivity between Polyester/Polyurethane and Nylon/Polyurethane Woven or Knitted Fabrics with Silver Paste Patterns in Elongation-Strain test (폴리에스터/폴리우레탄 및 나일론/폴리우레탄에 은 문양을 입힌 편직물의 신장-변형 시 전기 전도도 비교)

  • Kim, Hyejin;Yun, Changsang;Kim, Jongjun
    • Journal of Fashion Business
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    • v.23 no.2
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    • pp.1-17
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    • 2019
  • The objective of this study was to investigate electrical conductivity of fabrics from polyester (PET) and Nylon (N) containing polyurethane (PU), with silver paste patterns screen-stenciled in three directions. The PET/PU and N/PU fabrics knitted or woven were uniaxially strain-recovered up to 22.5% in three times when each change in electrical resistance was simultaneously measured. This study established four variables that complexly affected electrical conductivity of these specimens; fabric structures, components, cover factors, and the percolation of silver particles. The woven or knitted fabric structures did not distinctively cause the changes in electrical resistance, however, the woven fabrics with the diagonal patterns showed their relatively high electrical resistance. The PET/PU fabrics with increasing the PET proportion generally presented the opposite propensity to its electrical conductivity. The changes in electric resistance of the PET/PU 85/15 2/1 twill and double plain fabrics instantaneously responded to the rate of elongation. The PET/PU group exhibited a reverse correlation between its cover factor and electrical resistivity. The highest electrical conductivity of the PET/PU 95/5 interlock fabric, with very few fluctuations, was attributed to the deep percolation of the silver particles that bridged the gaps between one loop and another. On the other hand, the occurrence of the silver cracks along with the elongated direction led to the immeasurably high change in electrical resistance as the strain increased.

Fabrication and Characterization of Silver-Coated Titanium Dioxide Nanoparticles for a Conductive Paste (은이 코팅된 이산화티탄 나노입자 및 도전성 페이스트 제조 특성)

  • Sim, Sang-Bo;Lee, Mi Chae;Bae, Dong-Sik
    • Korean Journal of Materials Research
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    • v.25 no.12
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    • pp.683-689
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    • 2015
  • In this study, the properties of Ag-coated $TiO_2$ nanoparticles were observed, while varying the molar ratio of water and $Ag^+$ for the surfactant and $TiO_2$. According to the XRD results, each nanoparticle showed a distinctive diffraction pattern. The intensity of the respective peaks and the sizes of the nanoparticles increased in the order of AT1($R_1=5$)(33.3 nm), AT2($R_1=10$)(38.1 nm), AT3($R_1=20$)(45.7 nm), AT4($R_1=40$)(48.6 nm) as well as AT5($R_2=0.2$, $R_3=0.5$)(41.4 nm), AT6($R_2=0.3$, $R_3=1$)(45.1 nm), AT7($R_2=0.5$, $R_3=1.5$)(49.3 nm), AT8($R_2=0.7$, $R_3=2$)(57.2 nm), which values were consistent with the results of the UV-Vis. spectrum. The surface resistance of the conductive pastes fabricated using the prepared Ag-coated $TiO_2$ nanoparticles exhibited a range 7.0~9.0($274{\sim}328{\mu}{\Omega}/cm^2$) times that of pure silver paste(ATP)($52{\mu}{\Omega}/cm^2$).

Address Electrode for PDP by Ink-Jet Method

  • Park, Lee-Soon;Im, Moo-Sik;Jung, Young-Chul
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.775-777
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    • 2003
  • Several methods are available for the fabrication of electrode pattern for the plasma display panel(PDP) including screen printing and photolithographic method. Piezo type ink-jet printing method is considered to the method of choice for electrode patterning in manufacturing of PDP. Both silver ink and absorbent layer paste formulation were developed for ink-jet printing of electrode pattern. The ink-jet printing of silver electrode with preformed absorbent layer was especially suitable for the patterning of address electrode for high resolution PDP.

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