Journal of the Institute of Electronics Engineers of Korea SD (대한전자공학회논문지SD)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Roll-type Micro Contact Printing for Fine Patterning of Metal Lines on Large Plastic Substrate

대면적 미세 금속전극 인쇄를 위한 원통형 마이크로 접촉 인쇄공정

  • Received : 2010.12.14
  • Accepted : 2011.05.23
  • Published : 2011.06.25
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Abstract

This paper is related to a roll-type micro-contact printing process. The proper parameters such as coating velocity, inking velocity, printing velocity and printing pressure as well as Ag contents of Ag ink were extracted to perform the fine patterning of Ag electrodes. Additionally we developed a process for PDMS with high uniform thickness. Finally, we obtained the Ag fine electrodes on $4.5cm\;{\times}\;4.5cm$ plastic substrate with the line width of 10 um, thickness less than 300 nm, surface roughness less than 40 nm, and the specific resistance of $2.08\;{\times}\;10^{-5}{\Omega}{\cdot}cm$.

본 논문은 PDMS(polydimethyl siloxane) 스탬프를 이용한 원통형 마이크로 접촉인쇄(roll-type micro-contact printing)에 관한 것으로 대면적 플라스틱 기판에 미세 금속 전극 인쇄를 PDMS 스탬프의 평탄화, 은 나노 잉크의 은 함량, 공정변수인 코팅속도, 잉킹속도, 프린팅속도, 프린팅 압력을 조절하여 가장 우수한 인쇄특성을 나타내는 조건을 도출하였다. 그 결과 면적 $4.5cm\;{\times}\;4.5cm$ 기판에 최소선폭 10 um, 두께 300 nm, 표면거칠기 40 nm 이하, 비저항 $2.08\;{\times}\;10^{-5}{\Omega}{\cdot}cm$의 특성을 갖는 은미세 전극을 인쇄하였다.

Keywords

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