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Floating gate (FG) memory has long erasing time, which limits its application as an electronic synapse in online training. This paper proposes a novel enhanced floating gate memory (EFM) by… Click to show full abstract
Floating gate (FG) memory has long erasing time, which limits its application as an electronic synapse in online training. This paper proposes a novel enhanced floating gate memory (EFM) by TCAD simulation. Here, three other structures are simulated just for comparison. The simulation results show that the erasing speed is about 34ns while the other three need the time over 1.8ms, which makes the operation speed of long-term potentiation (LTP) more symmetrical to long-term depression (LTD). In addition, both LTP and LTD are approximately linear in the simulation results. The speed, linearity, and symmetry of weight update are the keys to online training of analog neural networks. These excellent performances indicated a potential application of EFM in analog neuro-inspired computing.
Journal Title: IEEE Journal of the Electron Devices Society
Year Published: 2020
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