Improved Synaptic Characteristics of Oxide-Based Electrochemical Random Access Memory at Elevated Temperatures Using Integrated Micro-Heater
SCIE
SCOPUS
- Title
- Improved Synaptic Characteristics of Oxide-Based Electrochemical Random Access Memory at Elevated Temperatures Using Integrated Micro-Heater
- Authors
- Lee, Jongwon; NIKAM, REVANNATH; KWAK, MYOUNG HOON; Hwang, Hyunsang
- Date Issued
- 2022-04
- Publisher
- Institute of Electrical and Electronics Engineers
- Abstract
- In this brief, we propose an oxygen-based electrochemical RAM (O-ECRAM) with a micro-heater to enhance the synaptic characteristics. Our findings demonstrate that by accelerating the drift/diffusion of oxygen ions at elevated temperatures, the conductance ON/OFF ratio and weight-update linearity of the O-ECRAM can be improved. To elucidate temperature-dependent synaptic behavior, we fitted weight-update curves using numerical modeling of ion injection from the electrolyte and diffusion within the channel. As a result, the micro-heater-integrated O-ECRAM (WO2.7/HfO1.7) device exhibits an increased training speed and near-ideal synaptic properties. © 1963-2012 IEEE.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/116598
- DOI
- 10.1109/ted.2022.3151306
- ISSN
- 0018-9383
- Article Type
- Article
- Citation
- IEEE Transactions on Electron Devices, vol. 69, no. 4, page. 2218 - 2221, 2022-04
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