학술논문

Unleashing Endurance Limits of Emerging Memory: Multi-Level FeRAM Recovery Array Empowered by a Coordinated Inverting Amplifier Circuit
Document Type
Periodical
Source
IEEE Transactions on Electron Devices IEEE Trans. Electron Devices Electron Devices, IEEE Transactions on. 71(4):2708-2713 Apr, 2024
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Nonvolatile memory
Random access memory
Iron
Ferroelectric films
Switches
Zirconium
Leakage currents
Endurance
ferroelectric (FE)
recovery
Language
ISSN
0018-9383
1557-9646
Abstract
Asymmetric field cycling recovery (AFCR) with alternating opposite low ${E}$ -field cycling is proposed to restore a fatigued ferroelectric (FE) capacitor and is experimentally demonstrated for up to $10^{{12}}$ switching cycles, thereby extending the endurance of FeRAM. Positive and negative asymmetric minor loops (AmLs) with AFCR exhibit nondegradation and complete restoration of $\Delta 2{P}_{\text {r}}$ toward unlimited endurance operation. Furthermore, an FE random access memory (FeRAM) array circuit with an inverting amplifier is designed to simultaneously execute Write/Read and Recovery procedures via the AFCR scheme.