Multi-Stack InTe Selector-Only Memory (SOM) Achieving Ultra-Low Power Operation $(\mathbf{10}\ \boldsymbol{\mu} \mathbf{A})$ and Excellent Endurance ($\sim \mathbf{10}^{\mathbf{10}}$ cycles)
We present an innovative In-Te based selector-only memory (SOM) featuring a multi-stack architecture that significantly boosts power efficiency and reliability. Through XPS, Raman spectroscopy and DFT simulation, we clarified how optimized In-Te bonding and trap engineering enable successful SOM operation while reducing write current <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$(\mathrm{I}_{\text{write}})$</tex> to an ultra-low <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$10\ \mu \mathrm{A}$</tex>. This approach also resulted in a sufficient memory window (MW ~ 1 V), minimized variability, and achieved excellent endurance (<tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$-10^{10}$</tex> cycles).
Authors
- Yu Bin Park
- Chang‐Wook Baek (ORCID: https://orcid.org/0000-0002-8578-4275)
- Dongmin Kim (ORCID: https://orcid.org/0009-0004-4300-4527)
- Jangseop Lee (ORCID: https://orcid.org/0000-0002-8052-7667)
- Yoori Seo (ORCID: https://orcid.org/0009-0002-8949-9268)
- Laeyong Jung (ORCID: https://orcid.org/0000-0001-6168-4985)
- Ohhyuk Kwon (ORCID: https://orcid.org/0000-0001-8402-3725)
- Tae Hoon Lee (ORCID: https://orcid.org/0000-0003-0641-0417)
- Hyunsang Hwang
Institutions
- Pohang University of Science and Technology (KR)
- Kyungpook National University (KR)
Publication Details
- Published
- 2025-06-08
- DOI
- https://doi.org/10.23919/vlsitechnologyandcir65189.2025.11075112
- Primary Topic
- Phase-change materials and chalcogenides
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Research Foundation of Korea