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성기환(Kihwan Seong),김병섭(Byungsub Kim),심재윤(Jae-Yoon Sim),박홍준(Hong-June Park) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.6
A multi-phase phase-locked loop (PLL) was implemented for the first time by using an all-synthesis technique. The length of the time-to-digital converter for the fine phase detector was reduced by half by the operation of a coarse phase detector that utilize 5-phase clocks. The maximum time difference between the rising edges of two adjacent-phase clocks is measured to be 6ps at 480 MHz. The PLL chip in a 65 nm process occupies 0.038 mm<SUP>2</SUP> , consumes 4.8 mV at 1.2 V. The measured rms and peak-to-peak output jitters are 8.6 ps and 45 ps, respectively.
DC 마그네트론 스퍼터법으로 제조한 ZnO:Al 투명 전도막의 특성
이세종,윤현우,김병섭,이성욱,박민우,곽동주 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.9
Sputter-deposited Al-doped zinc oxide (ZnO:AI) is an attractive transparent conductive oxide material for application as transparent electrode in various electronic devices. In this work, the ZnO:AI films are prepared by the capacitively cooped DC magnetron sputtering on glass substrates and the influence of the substrate temperature and working gas pressure on the electrical, optical and morphological properties are investigated. We find that the ZnO:AI film with the optimum deposition parameters shows the resistivity of 0.96×10^(-3) Ω㎝ and the transmittance of average 90% in the wavelength range of the visible spectrum.