High Dielectric Constant of HfO2 Technology for Memory Applications

  • Min Hung Lee*
  • , Zhao Feng Luo
  • , Chun Yu Liao
  • , Kuo Yu Hsiang
  • , Jia Yang Lee
  • , Fu Shen Chang
  • , Yii Tay Chang
  • , Cheng Hong Liu
  • , Che Chi Cheng
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

HfO2 with ferroelectricity has been widely investigated for memory and logic applications, including doped by Zr, Si, La, …etc. The superlamination (SL) technique exhibits higher capacitance and dielectric constant as compared to solid-solution (SS). The maximum dielectric constant achieves as high as 46 for HZZ at [Zr] = 66% with morphotropic phase boundary (MPB) effect. Ferroelectric-based memory of ferroelectric capacitive memory (FCM) has gained significant attention due to the charge transfer concept, which is adopted with the SL technique. The SL technique exhibits higher capacitance and applicable remnant polarization (Pr) benefits for FCM application to demonstrate a CHCS/CLCS ratio of 245x. The feasible concept of coupling the MPB SL Hf1-xZrxO2 is practicable into emerging memory/synapse.

Original languageEnglish
Title of host publication9th IEEE Electron Devices Technology and Manufacturing Conference
Subtitle of host publicationShaping the Future with Innovations in Devices and Manufacturing, EDTM 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798331504168
DOIs
Publication statusPublished - 2025
Externally publishedYes
Event9th IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2025 - Hong Kong, Hong Kong
Duration: 2025 Mar 92025 Mar 12

Publication series

Name9th IEEE Electron Devices Technology and Manufacturing Conference: Shaping the Future with Innovations in Devices and Manufacturing, EDTM 2025

Conference

Conference9th IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2025
Country/TerritoryHong Kong
CityHong Kong
Period2025/03/092025/03/12

Keywords

  • ferroelectric
  • ferroelectric capacitive memory (FCM)
  • morphotropic phase boundary (MPB)

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation

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