Integration of HfO2 -based 3D OxRAM with GAA stacked-nanosheet transistor for high-density embedded memory
ESSDERC 2023 - IEEE 53rd European Solid-State Device Research Conference (ESSDERC)(2023)
摘要
In this study, we demonstrate a fully CMOS compatible co-integration of Gate-All-Around (GAA) stacked-NanoSheet (NS) transistors with HfO
2
-based OxRAM cells for high-density embedded memory. For the first time, we integrate resistive memory cells in the MEOL self-aligned drain contacts of vertically stacked-NS transistors. We demonstrate the feasibility of optimizing the OxRAM bipolar switching characteristics in 3D vertical drain contacts with doped Si bottom electrodes. Pulsed cycling operation, observed on forming-free devices, show an endurance up to 1M cycles at scaled GAA-NS dimensions (L
G
=20nm and W=30nm).
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关键词
3D,OxRAM,1T1R memory,Gate-All-Around,Nanosheet FET
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