ECR-PECVD법을 사용한 ULSI DRAM 용 PZT 박막 제조ECR-PECVD PZT thin films for the charge storage capacitor of ULSI DRAMs

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PZT thin films were fabricated on Pt/Ti/SiO2/Si substrates at 500℃ by ECR-PECVD for the application to the charge storage capacitor of ULSI DRAMs. Perovskite single phase PZT films were obtained by controling the film compositional ratio Pb/(Zr+Ti) close to 1. The anion concentrations in the PZT films were successfully controlled by adjusting the flow rates of each MO sources. Capacitance of a typical 94 nm thick PZT film prepared at 500℃ in this work was about 5.3 uF/cm², which corresponds to the equivalent SiO2 thickness of 0.65nm.
Publisher
한국진공학회
Issue Date
1995-04
Language
Korean
Citation

한국진공학회지, v.4, no.1, pp.145 - 150

ISSN
1225-8822
URI
http://hdl.handle.net/10203/68309
Appears in Collection
MS-Journal Papers(저널논문)
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