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Inicio  /  Applied Sciences  /  Vol: 14 Par: 6 (2024)  /  Artículo
ARTÍCULO
TITULO

Uniform Oxide Layer Integration in Amorphous IGZO Thin Film Transistors for Enhanced Multilevel-Cell NAND Memory Performance

Zeyang Xiang    
Kexiang Wang    
Jie Lu    
Zixuan Wang    
Huilin Jin    
Ranping Li    
Mengrui Shi    
Liuxuan Wu    
Fuyu Yan and Ran Jiang    

Resumen

In this work, the implementation of HfZrO layers for the tunneling, charge trapping, and blocking mechanisms within the device offer benefits in terms of programmability and data retention. This configuration has resulted in a memory device that can achieve a significant difference in threshold voltage of around 2 V per memory level. This difference is crucial for effectively distinguishing between multiple levels of memory in MLC applications. Additionally, the device operates at low programming voltages below 14 V. Furthermore, the device showcases impressive endurance and data retention capabilities, maintaining a large memory window over extended periods and under varying temperature conditions. The advancement in the a-IGZO-based memory device, characterized by its uniform oxide stacking, presents a viable solution to the industry?s requirement for memory storage options that are efficient, dependable, and economical.

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