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NTIS 바로가기전기전자재료 = Bulletin of the Korean institute of electrical and electronic material engineers, v.30 no.3, 2017년, pp.31 - 43
김영민 (가천대학교 전자공학과) , 유은선 (가천대학교 전자공학과) , 이준수 (가천대학교 전자공학과) , 조성재 (가천대학교 전자공학과)
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핵심어 | 질문 | 논문에서 추출한 답변 |
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비휘발성 메모리란 무엇인가? | 반도체 메모리는 휘발성(volatile) 메모리와 비휘발성(nonvolatile) 메모리로 구분된다. 휘발성 메모리는 정보의 유지를 위해서는 전원의 공급이 이루어져야 하는 반면 비휘발성 메모리는 전원의 공급이 차단되어도 저장된 정보가 유지되는 메모리를 의미한다. 비휘발성 메모리로는 SRAM(static random-access memory)과 DRAM(dynamic random-access memory)이 있다. | |
비휘발성 메모리로는 무엇이 있는가? | 휘발성 메모리는 정보의 유지를 위해서는 전원의 공급이 이루어져야 하는 반면 비휘발성 메모리는 전원의 공급이 차단되어도 저장된 정보가 유지되는 메모리를 의미한다. 비휘발성 메모리로는 SRAM(static random-access memory)과 DRAM(dynamic random-access memory)이 있다. 1968년 IBM 의 R. | |
CTF 플래시 메모리 소자의 개발 방향인 MBC와 MLC는 무엇인가? | CTF 플래시 메모리 소자 개발의 두 방향은 MBC(multibit cell)과 MLC(multi-level cell)였다. MBC는 단일 메모리 셀 안에 전하를 저장할 수 있는 물리적 공간의 수가 둘 이상인 메모리 셀을 의미한다. 반면, MLC는 물리적 공간의 수는 하나로 고정되어 있으나 동작 조건에 변화를 줌으로써 저장되는 전하의 양을 조절하여 해당 메모리 셀의 문턱 전압이 둘 이상의 값을 가질 수 있도록 하는 메모리 셀을 말한다. 이러한 정의를 생각해볼 때, 양자 모두 메모리 “셀”이라는 명칭으로 불리긴 하지만 보다 엄밀하게 구분한다면 MBC는 소자의 물리적 구조에 따른 명칭이고 MLC는 소자의 동작 기법에 따른 명칭이라고 이해할 수 있다. |
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