J. KIMS Technol Search


Journal of the Korea Institute of Military Science and Technology 2004;7(1):34-46.
Effects of electrode configurations on uniformity of copper films on flexible polymer substrate prepared by ECR-MOCVD
ECR-MOCVD에 의해 연성 고분자 기판에 제조된 구리막의 균일도에 전극의 형태가 미치는 영향
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Copper films were prepared by using ECR-MOCVD(Electron Cyclotron Resonance Metal Organic Chemical Vapor Deposition) coupled with a DC bias system. The DC bias is connected to the electrode which placed 1∼3cm above the polymer substrate. The pulse electrical field around the electrode attracts the positive charged copper ions generated from the dissociation of copper precursor, $Cu(hfac)_2$, under ECR plasma. Condensation of supersaturated copper ions in the space between the electrode and substrate, makes it possible to deposit copper film on the polymer substrate even at room temperature. In this study, optimization of the electrode configuration was carried out in order to obtain the uniform films. The uniformity of the deposited films were closely related to the parameters of electrode geometry such as electrode shape, thickness, grid size and the spacing between electrodes. The most uniform copper film was observed with the electrode that enabled uniform electrical field distribution across the whole dimension of electrode.
Key Words: Electron Cyclotron Resonance, MOCVD, DC Bias, Uniformity, Electrode, Surface Resistance
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