中国物理B ›› 2016, Vol. 25 ›› Issue (10): 107302-107302.doi: 10.1088/1674-1056/25/10/107302

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Resistive switching characteristic and uniformity of low-power HfOx-based resistive random access memory with the BN insertion layer

Shuai Su(苏帅), Xiao-Chuan Jian(鉴肖川), Fang Wang(王芳), Ye-Mei Han(韩叶梅), Yu-Xian Tian(田雨仙), Xiao-Yang Wang(王晓旸), Hong-Zhi Zhang(张宏智), Kai-Liang Zhang(张楷亮)   

  1. School of Electronics Information Engineering, Tianjin Key Laboratory of Film Electronic & Communication Devices, Tianjin University of Technology, Tianjin 300384, China
  • 收稿日期:2016-05-06 修回日期:2016-06-22 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: Fang Wang, Kai-Liang Zhang E-mail:fwang75@163.com;kailiang_zhang@163.com
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61274113, 11204212, 61404091, 51502203, and 51502204), the Tianjin Natural Science Foundation, China (Grant Nos. 14JCZDJC31500 and 14JCQNJC00800), and the Tianjin Science and Technology Developmental Funds of Universities and Colleges, China (Grant No. 20130701).

Resistive switching characteristic and uniformity of low-power HfOx-based resistive random access memory with the BN insertion layer

Shuai Su(苏帅), Xiao-Chuan Jian(鉴肖川), Fang Wang(王芳), Ye-Mei Han(韩叶梅), Yu-Xian Tian(田雨仙), Xiao-Yang Wang(王晓旸), Hong-Zhi Zhang(张宏智), Kai-Liang Zhang(张楷亮)   

  1. School of Electronics Information Engineering, Tianjin Key Laboratory of Film Electronic & Communication Devices, Tianjin University of Technology, Tianjin 300384, China
  • Received:2016-05-06 Revised:2016-06-22 Online:2016-10-05 Published:2016-10-05
  • Contact: Fang Wang, Kai-Liang Zhang E-mail:fwang75@163.com;kailiang_zhang@163.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61274113, 11204212, 61404091, 51502203, and 51502204), the Tianjin Natural Science Foundation, China (Grant Nos. 14JCZDJC31500 and 14JCQNJC00800), and the Tianjin Science and Technology Developmental Funds of Universities and Colleges, China (Grant No. 20130701).

摘要:

In this letter, the Ta/HfOx/BN/TiN resistive switching devices are fabricated and they exhibit low power consumption and high uniformity each. The reset current is reduced for the HfOx/BN bilayer device compared with that for the Ta/HfOx/TiN structure. Furthermore, the reset current decreases with increasing BN thickness. The HfOx layer is a dominating switching layer, while the low-permittivity and high-resistivity BN layer acts as a barrier of electrons injection into TiN electrode. The current conduction mechanism of low resistance state in the HfOx/BN bilayer device is space-charge-limited current (SCLC), while it is Ohmic conduction in the HfOx device.

关键词: resistive random access memory (RRAM), low-power consumption, uniformity, HfOx

Abstract:

In this letter, the Ta/HfOx/BN/TiN resistive switching devices are fabricated and they exhibit low power consumption and high uniformity each. The reset current is reduced for the HfOx/BN bilayer device compared with that for the Ta/HfOx/TiN structure. Furthermore, the reset current decreases with increasing BN thickness. The HfOx layer is a dominating switching layer, while the low-permittivity and high-resistivity BN layer acts as a barrier of electrons injection into TiN electrode. The current conduction mechanism of low resistance state in the HfOx/BN bilayer device is space-charge-limited current (SCLC), while it is Ohmic conduction in the HfOx device.

Key words: resistive random access memory (RRAM), low-power consumption, uniformity, HfOx

中图分类号:  (Metal-insulator-metal structures)

  • 73.40.Rw
85.30.-z (Semiconductor devices) 85.35.-p (Nanoelectronic devices)