Defects in ferroelectric HfO 2

A Chouprik, D Negrov, EY Tsymbal, A Zenkevich - Nanoscale, 2021 - pubs.rsc.org
The discovery of ferroelectricity in polycrystalline thin films of doped HfO2 has reignited the
expectations of developing competitive ferroelectric non-volatile memory devices. To date, it …

Van der Waals engineering of ferroelectric heterostructures for long-retention memory

X Wang, C Zhu, Y Deng, R Duan, J Chen… - Nature …, 2021 - nature.com
The limited memory retention for a ferroelectric field-effect transistor has prevented the
commercialization of its nonvolatile memory potential using the commercially available …

A new generation of memory devices enabled by ferroelectric hafnia and zirconia

T Schenk, S Mueller - 2021 IEEE International Symposium on …, 2021 - ieeexplore.ieee.org
With the emergence of ferroelectric HfO 2-and ZrO 2-based thin films, the topic of
ferroelectric memories has been experiencing a renaissance. These novel ferroelectric …

Non-Volatile Ferroelectric FETs Using 5-nm Hf0.5Zr0.5O2 With High Data Retention and Read Endurance for 1T Memory Applications

KT Chen, HY Chen, CY Liao, GY Siang… - IEEE Electron …, 2019 - ieeexplore.ieee.org
FeFETs with 5-nm-thick Hf 0.5 Zr 0.5 O 2 (HZO) have been demonstrated in memory
operations for the ON/OFF current ratio> 10 4 at zero gate voltage and a memory window …

Integrated circuit including a ferroelectric memory cell and manufacturing method thereof

S Müller - US Patent 10,872,905, 2020 - Google Patents
An integrated circuit comprises a ferroelectric memory cell comprising a ferroelectric film
comprising a binary oxide ferroelectric with the formula XO, where X represents a transition …

Self-Aligned, Gate Last, FDSOI, Ferroelectric Gate Memory Device With 5.5-nm Hf0.8Zr0.2O2, High Endurance and Breakdown Recovery

K Chatterjee, S Kim, G Karbasian… - IEEE Electron …, 2017 - ieeexplore.ieee.org
We demonstrate a nonvolatile single transistor ferroelectric gate memory device with ultra-
thin (5.5 nm) Hf 0.8 Zr 0.2 O 2 (HZO) fabricated using a self-aligned gate last process. The …

High endurance strategies for hafnium oxide based ferroelectric field effect transistor

J Muller, P Polakowski, S Muller… - 2016 16th non …, 2016 - ieeexplore.ieee.org
In this paper potential strategies to overcome the endurance limitations of hafnium oxide
based ferroelectric field effect transistors are discussed. These pathways are based on the …

2-Bit/Cell Operation of Hf0.5Zr0.5O2 Based FeFET Memory Devices for NAND Applications

B Zeng, M Liao, Q Peng, W Xiao, J Liao… - IEEE Journal of the …, 2019 - ieeexplore.ieee.org
The multilevel memory performances of ferroelectric field effect transistor (FeFET) with Hf 0.5
Zr 0.5 O 2 (HZO) ferroelectric thin film are investigated. First, similar retention characteristics …

ZrO2 Ferroelectric FET for Non-volatile Memory Application

H Liu, C Wang, G Han, J Li, Y Peng… - IEEE Electron …, 2019 - ieeexplore.ieee.org
We demonstrate for the first time ZrO 2 ferroelectric field-effect transistors (FeFETs) for
embedded non-volatile memory applications. Multiple sweeps of polarization versus voltage …

Method to Achieve the Morphotropic Phase Boundary in HfxZr1−xO2 by Electric Field Cycling for DRAM Cell Capacitor Applications

S Kim, SH Lee, MJ Kim, WS Hwang… - IEEE Electron Device …, 2021 - ieeexplore.ieee.org
We demonstrate a novel method using electric field cycling to induce a phase transition in Hf
x Zr 1− x O 2 to reach the morphotropic phase boundary of tetragonal and orthorhombic …