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MOS memory using germanium nanocrystals formed by thermal oxidation of Si1-xGex
Conference paper

MOS memory using germanium nanocrystals formed by thermal oxidation of Si1-xGex

Ya-Chin King, Tsu-Jae King and Chenming Hu
Technical Digest - International Electron Devices Meeting, pp.115-118
1998

Abstract

In this work, we propose a novel technique of fabricating germanium nanocrystal quasi-nonvolatile memory device. The device consists of a MOSFET with Ge charge-traps embedded within the gate dielectric. This trap-formation method provides for precise control of the thicknesses of the oxide layers which sandwich the charge-traps, via thermal oxidation. Memory devices with write/erase speed/voltage and retention time superior to previously reported nanocrystal memory devices were demonstrated.

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