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논문 기본 정보

저자정보
(KLA Korea) (Myongji University) (Myongji University) (Myongji University)
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대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.26 No.5
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    초록·키워드

    In this study, we propose an enhanced 1T-DRAM-based synaptic device structure aimed at improving conductance characteristics and linearity during potentiation and depression. While conventional 1T-DRAM based synaptic devices using a uniform SiGe body suffer from degraded linearity due to rapid hole saturation across the entire body region, our approach introduces a degraded SiGe body structure in which the body is divided into three sections with gradually decreasing Ge mole fractions (0.3, 0.2, and 0.1) from the source to the drain side. This gradient design enables more effective hole storage during potentiation and depression compared to a uniform SiGe body, alleviating abrupt saturation and thereby enhancing linearity. The proposed structure is evaluated in a multi-layer perceptron (MLP) simulation using NeuroSim, demonstrating increased classification accuracy with respect to training epochs.

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