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The write/erase characteristics of Germanium nanocrystal memory device are modeled using single-charge tunneling theory with quantum confinement and Coulomb blockade effects. A trap model is proposed to describe the retention characteristic of the nanocrystal memory. The impact of nanocrystal size, tunnel-oxide thickness, and high-k tunnel material is studied, and the suitability of the nanocrystal memory devices for nonvolatile memory and DRAM applications is discussed. Issues related to the scaling limit of the nanocrystal memory device are investigated.
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She et al. (2003) studied this question.
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