• 제목/요약/키워드: Volatile Memory

검색결과 302건 처리시간 0.027초

PRAM용 GST계 상변화 박막의 하부막에 따른 특성 (Properties of GST Thin Films for PRAM with Bottom Electrode)

  • 장낙원;김홍승
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2005년도 하계학술대회 논문집 Vol.6
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    • pp.205-206
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    • 2005
  • PRAM (Phase change Random Access Memory) is one of the most promising candidates for next generation Non-volatile Memories. The Phase change material has been researched in the field of optical data storage media. Among the phase change materials, $Ge_2Sb_2Te_5$(GST) is very well known for its high optical contrast in the state of amorphous and crystalline. However, the characteristics required in solid state memory are quite different from optical ones. In this study, the structural properties of GST thin films with bottom electrode were investigated for PRAM. The 100-nm thick GST films were deposited on TiN/Si and TiAlN/Si substrates by RF sputtering system. In order to characterize the crystal structure and morphology of these films, we performed x-ray diffraction (XRD) and atomic force microscopy (AFM).

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음이온 기반 멤리스터의 최신 기술동향 및 이슈 (The Latest Trends and Issues of Anion-based Memristor)

  • 이홍섭
    • 마이크로전자및패키징학회지
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    • 제26권1호
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    • pp.1-7
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    • 2019
  • Recently, memristor (anion-based memristor) is referred to as the fourth circuit element which resistance state can be gradually changed by the electric pulse signals that have been applied to it. And the stored information in a memristor is non-volatile and also the resistance of a memristor can vary, through intermediate states, between high and low resistance states, by tuning the voltage and current. Therefore the memristor can be applied for analogue memory and/or learning device. Usually, memristive behavior is easily observed in the most transition metal oxide system, and it is explained by electrochemical migration motion of anion with electric field, electron scattering and joule heating. This paper reports the latest trends and issues of anion-based memristor.

Design of RE Passive Smart Card for the Subway Ticket

  • Yang, Kyeong-Rok;Jin, In-Su;Ryu, Hyoung-sun;Kim, Yang-mo
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2000년도 ITC-CSCC -2
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    • pp.583-586
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    • 2000
  • A passive RF smart card incorporating a non volatile memory element is powered by inductive coupling to a proximately located RF reader. Therefore, the power consumption in the smart card should be low. In this study, we designed the low power passive RF smart card that is operated at 125kHz to apply to the subway ticket system.

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비 휘발성 메모리를 사용한 애플리케이션 시작 시간 개선 기법 (Application Launching Time Reduction Technique with Non-volatile Memory)

  • 조용운;김태석
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2015년도 춘계학술발표대회
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    • pp.61-63
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    • 2015
  • 본 논문에서는 애플리케이션 실행에 필요한 파일들을 검출하고, 그 파일들을 저 용량의 비 휘발성 메모리에 옮겨 시작 시간을 단축시킨다. 또한 각각의 파일들은 전체가 필요하지 않고 파일 중 일부분만 필요하기 때문에, 필요한 부분만 주 메모리에 선 적재 함으로써 시작 시간을 크게 개선하였다.