A Floating Gate Memory with U-Shape Recessed Channel for Neuromorphic Computing and MCU Applications

We have simulated a U-shape recessed channel floating gate memory by Sentaurus TCAD tools. Since the floating gate (FG) is vertically placed between source (S) and drain (D), and control gate (CG) and HfO(2) high-k dielectric extend above source and drain, the integrated density can be well improved...

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Detalles Bibliográficos
Autores principales: Gan, Lu-Rong, Wang, Ya-Rong, Chen, Lin, Zhu, Hao, Sun, Qing-Qing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780788/
https://www.ncbi.nlm.nih.gov/pubmed/31450802
http://dx.doi.org/10.3390/mi10090558
Descripción
Sumario:We have simulated a U-shape recessed channel floating gate memory by Sentaurus TCAD tools. Since the floating gate (FG) is vertically placed between source (S) and drain (D), and control gate (CG) and HfO(2) high-k dielectric extend above source and drain, the integrated density can be well improved, while the erasing and programming speed of the device are respectively decreased to 75 ns and 50 ns. In addition, comprehensive synaptic abilities including long-term potentiation (LTP) and long-term depression (LTD) are demonstrated in our U-shape recessed channel FG memory, highly resembling the biological synapses. These simulation results show that our device has the potential to be well used as embedded memory in neuromorphic computing and MCU (Micro Controller Unit) applications.

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