최근, 디지털 기술의 발전과 인터넷 보급이 활성화 되면서 PC 뿐만 아니라 모든 단말기가 네트워크에 상시 접속되어, 누구든지 시간과 장소에 제약이 없이 다양한 서비스를 제공 받을 수 있는 유비쿼터스 환경의 사회로의 진입이 가시화되고 있다. 이러한 기술을 가능하게 하는 핵심 코어 기술 중의 하나가 메모리 기술이다. 최근에 유비쿼터스용 유니버설 메모리가 연구 개발되고 있어 이 기술에 대한 원리와 간단한 구조 및 최근의 기술 동향에 대하여 살펴보고, 향후의 유니버설 메모리 기술의 연구개발 방향에 대하여 언급하였다. 여기서는 유니버설 메모리라고 불리는 차세대의 비휘발성 메모리 중에서 현재 가장 주목 받고 있는 MRAM, FeRAM, PRAM의 기본적인 구조에 대해서 설명하고 그 최근의 기술 개발 동향에 대하여 분석하여 언급하고자 한다.
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