摘要
A double-HZO (HfZrO2) FeFET (ferroelectric FET) with nonidentical ferroelectric thicknesses is experimentally demonstrated with as low as \vert {V}{P/{E}}\vert = {5} V, 2-bit endurance > 105 cycles and retention > 104 s. Inserting an insulator to separate the ferroelectric layers and avoid the monoclinic formation of a thick Fe-HZO (ferroelectric-HZO) is a useful method to enhance the MW (memory window) for MLC (multilevel cell) applications. Double-HZO has a lower ER (error rate) and shows a 600X improvement compared to single-HZO. The stacked HZO FeFET has potential as an MLC for high-density NVM (nonvolatile memory) applications.
原文 | 英語 |
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文章編號 | 9358194 |
頁(從 - 到) | 617-620 |
頁數 | 4 |
期刊 | IEEE Electron Device Letters |
卷 | 42 |
發行號 | 4 |
DOIs | |
出版狀態 | 已發佈 - 2021 4月 |
ASJC Scopus subject areas
- 電子、光磁材料
- 電氣與電子工程