Characterization on ferroelectric scandium-doped aluminum nitride for memory applications

Ferroelectric memory is one of the promising candidates to replace FLASH as a new generation of non-volatile memories (NVM), with the advantages of low power consumption, thigh writing and erasing speed and large endurance. With the discovery of ferroelectricity in scandium doped aluminum nitride...

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Main Author: Wang, Zichu
Other Authors: Zhang Qing
Format: Thesis-Master by Coursework
Language:English
Published: Nanyang Technological University 2023
Subjects:
Online Access:https://hdl.handle.net/10356/166378
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author Wang, Zichu
author2 Zhang Qing
author_facet Zhang Qing
Wang, Zichu
author_sort Wang, Zichu
collection NTU
description Ferroelectric memory is one of the promising candidates to replace FLASH as a new generation of non-volatile memories (NVM), with the advantages of low power consumption, thigh writing and erasing speed and large endurance. With the discovery of ferroelectricity in scandium doped aluminum nitride >100 μC/cm2 , it is expected to be of many advantages over ferroelectric memories. In this thesis, we report the tendency of ferroelectric properties in AlScN varying with residual stress and thickness. Ferroelectricity in a 10nm Al0.7Sc0.3N thin film is observed and reported in this thesis as well. Capacitors with a Mo/Al0.7Sc0.3N/Al structure where thickness of Al0.7Sc0.3N is 50nm exhibit high endurance up to 10 6 switching cycles, indicating broad application prospects in ferroelectric storage.
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spelling ntu-10356/1663782023-07-04T15:34:55Z Characterization on ferroelectric scandium-doped aluminum nitride for memory applications Wang, Zichu Zhang Qing School of Electrical and Electronic Engineering Agency for Science, Technology and Research (A*STAR) Technical University of Munich eqzhang@ntu.edu.sg Engineering::Electrical and electronic engineering Ferroelectric memory is one of the promising candidates to replace FLASH as a new generation of non-volatile memories (NVM), with the advantages of low power consumption, thigh writing and erasing speed and large endurance. With the discovery of ferroelectricity in scandium doped aluminum nitride >100 μC/cm2 , it is expected to be of many advantages over ferroelectric memories. In this thesis, we report the tendency of ferroelectric properties in AlScN varying with residual stress and thickness. Ferroelectricity in a 10nm Al0.7Sc0.3N thin film is observed and reported in this thesis as well. Capacitors with a Mo/Al0.7Sc0.3N/Al structure where thickness of Al0.7Sc0.3N is 50nm exhibit high endurance up to 10 6 switching cycles, indicating broad application prospects in ferroelectric storage. Master of Science (Green Electronics) 2023-04-24T09:02:22Z 2023-04-24T09:02:22Z 2023 Thesis-Master by Coursework Wang, Z. (2023). Characterization on ferroelectric scandium-doped aluminum nitride for memory applications. Master's thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/166378 https://hdl.handle.net/10356/166378 en application/pdf Nanyang Technological University
spellingShingle Engineering::Electrical and electronic engineering
Wang, Zichu
Characterization on ferroelectric scandium-doped aluminum nitride for memory applications
title Characterization on ferroelectric scandium-doped aluminum nitride for memory applications
title_full Characterization on ferroelectric scandium-doped aluminum nitride for memory applications
title_fullStr Characterization on ferroelectric scandium-doped aluminum nitride for memory applications
title_full_unstemmed Characterization on ferroelectric scandium-doped aluminum nitride for memory applications
title_short Characterization on ferroelectric scandium-doped aluminum nitride for memory applications
title_sort characterization on ferroelectric scandium doped aluminum nitride for memory applications
topic Engineering::Electrical and electronic engineering
url https://hdl.handle.net/10356/166378
work_keys_str_mv AT wangzichu characterizationonferroelectricscandiumdopedaluminumnitrideformemoryapplications