• Title/Summary/Keyword: Nano-Electronics

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Design of Controller Using the Piezo Actuator (피에죠 엑츄에이터를 이용한 나노 구동 제어기 설계)

  • 유상훈;이충우;서상민;정정주;김대용
    • Proceedings of the IEEK Conference
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    • 2003.07c
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    • pp.2811-2814
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    • 2003
  • 본 논문에서는 Sub-nano 수준의 위치정밀도와 분해능을 갖는 Piezo actuator 의 제어기 설계를 목적으로 하였다. 이산 시간 상태 공간에서의 Piezo actuator를 이용한 1 축 스테이지 드라이브 시스템 SISO 제어기를 설계하였다. Piezo actuator 의 소재 자체의 특성으로는 Hysteresis 가 있으며, 이는 정상상태에서 Piezo actuator 의 위치 오차를 발생하는 주요 원인이 된다. 제어기의 설계는 극점 배치 방법을 기본으로 하여 Hysteresis 에 대한 보상을 목적으로 적분제어방식과 외란 추정기를 각각 적용하였다. 모의실험을 통하여 제어기의 설계 및 시뮬레이션 하였으며, Hysteresis 에 대한 보상이 이루어짐을 보았고, 실험을 통하여 이를 증명하였다.

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바이오 센서 및 랩온어칩

  • 박유근
    • The Magazine of the IEIE
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    • v.31 no.1
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    • pp.58-72
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    • 2004
  • Smart sensors and biochip technologies have received a great deal of attention in recent years not only because of the enormous potential markets in the healthcare expenditures but more importantly because of its great impact on the quality of human life in the future. Collaborative research among BT (Bio Technologies), IT (Information Technologies) and NT (Nano Technologies) will bring us a new paradigm of the healthcare services. Examples include disease prediction based on the genetic tests, personal medicines, point-of-care analysis, rapid and sensitive infectious disease diagnostics, environmental monitoring for chemical or biological warfares, intelligent drug delivery systems etc. In this report, recent accomplishment in the research area on biosensors, DNA chips, Protein Chips and Lab-on-a-chips are reviewed.

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SiC M/NEMS 연구개발 현황

  • Jeong, Gwi-Sang
    • KIPE Magazine
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    • v.14 no.1
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    • pp.26-33
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    • 2009
  • 광대역 반도체중에서도 SiC(Silicon Carbide)는 우수한 전기적, 기계적, 열적, 화학적, 광학적 그리고 생체 적합성 등으로 인하여 지난 반세기 동안 급속히 발전하고 있는 SiM/NEMS(Micro/Nano Electro Mechanical System)를 대처할 수 있는 차세대 M/NEMS로써 고온, 고압, 고진동, 고습도 등의 극한 환경에서도 사용 가능한 자동차, 선박, 우주항공, 산업 프랜트용 마이크로 센서 및 액츄에이터, 초고주파수 정보통신용 부품 그리고 바이오 센서 등의 분야에 크게 주목을 받고 있다. 본 논문에서는 현재 SiC M/NEMS의 연구개발 현황에 대해서 소개하고자 한다.

Optimal Design of Dielectric-Filled Plasmonic Slot Waveguide with Genetic Algorithm

  • Kim, Daekeun;Jung, Jaehoon
    • Journal of the Optical Society of Korea
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    • v.16 no.1
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    • pp.70-75
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    • 2012
  • An optimization methodology for designing a dielectric-filled plasmonic slot waveguide is presented. The genetic algorithm combined with a rigorous analysis based on the finite element method is used to optimize a nano-scaled plasmonic slot waveguide to have high mode confinement and a long propagation length, for which the objective function is defined as a figure of merit combining both propagation parameters.

A Fast Response Smectic LCD using Induced Polarization

  • Mochizuki, Akihiro
    • Journal of Information Display
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    • v.6 no.3
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    • pp.6-11
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    • 2005
  • In this paper, a general performance of the PSS-LCD or Polarization Shielded Smectic Liquid Crystal Display is discussed. This smectic base LCD does not use any spontaneous polarization, but uses induced polarization just sa me with current nematic base LCDs. Specific initial molecular alignment as well as specific cell design realizes ext remely fast optical response speed with native wide viewing angle. Moreover, this performance is provided by full compatible electronics for current conventional LCDs. A general performance of the PSS-LCD is introduced herein.

Ink-Jet Printing of Conductive Silver Inks for Flexible Display Devices

  • Kim, Dong-Jo;Park, Jung-Ho;Jeong, Sun-Ho;Moon, Joo-Ho
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1491-1494
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    • 2005
  • We have studied ink-jet printing method for patterning conductive line on flexible plastic substrates. Synthesized silver nano-particles of ${\sim}$20nm were used for the conductive ink and the printed patterns exhibit a smooth line whose linewidth is below 100 ${\mu}m$. This ink-jet printing technique can be applied to flexible displays and electronics.

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Nano Pulse Plasma Power Supply (나노 펄스 플라즈마 전원 장치)

  • Yoo, Hyo-Yol;Shim, Eun-Yong;Lee, Seung-Yun;Park, Hyung-Jin;Jo, Seong-Man
    • Proceedings of the KIPE Conference
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    • 2010.07a
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    • pp.283-284
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    • 2010
  • 소각로 배가스 탈황탈질 동시처리 시스템의 주요 장치인 나노 펄스 플라즈마 전원 장치(일명, Magnetic Pulse Compressor)의 상용화 성공과 향후 개선 방향에 대하여 논의한다.

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Piezoelectric Nanogenerators: Energy Harvesting Technology (압전 나노발전기: 에너지 수확 기술)

  • Shin, Dong-Myeong;Hwang, Yoon-Hwae
    • Vacuum Magazine
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    • v.3 no.2
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    • pp.17-20
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    • 2016
  • Piezoelectric nanogenerators are energy harvesting device to convert a mechanical energy into an electric energy using nanostructured piezoelectric materials. This review summarizes works to date on piezoelectric nanogenerators, starting with a basic theory of piezoelectricity and working mechanism, and moving through the reports of numerous nanogenerators using nanorod arrays, flexible substrates and alternative materials. A sufficient power generated from nanogenerators suggests feasible applications for either power supplies or strain sensors of highly integratedl nano devices. Further development of nanogenerators holds promise for the development of self-powered implantable and wearable electronics.

A General Performance of PSS-LCDs

  • Mochizuki, Akihiro
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07a
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    • pp.91-96
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    • 2005
  • In this paper, a general performance of the PSS-LCD or Polarization Shielded Smectic Liquid Crystal Display is discussed. This smectic base LCD does not use any spontaneous polarization, but uses induced polarization just same with current nematic base LCDs. Specific initial molecular alignment as well as specific cell design realizes extremely fast optical response speed with native wide viewing angle. Moreover, this performance is provided by full compatible electronics for current conventional LCDs. A general performance of the PSS-LCD is introduced here.

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