Performance Improvement of AlN-Based RRAMs Using Ag Layer for Hardware Security Applications

Kao Peng Min, Cheng Ying Li, Ting Jui Wang, Chen Chung Tsai, Sheng Yuan Chu, Lih Yih Chiou

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)


In this study, the 8× 8 aluminum nitride (AlN)-based complementary resistive switching (CRS) resistive random access memory (RRAM) crossbar array has been fabricated and was applied for a hardware security. Since CRS has a nonlinear I - V characteristic curve, it can effectively alleviate the actual impact caused by sneak current. A 5 nm silver electrode auxiliary layer is inserted between the electrode and the resistance switching layer to form a titanium nitride (TiN)/Ag/AlN/Pt/AlN/Ag/TiN seven-layer structure. The ultimate result here shows that the forming voltage of the device has eventually dropped from 5.5 to 2.8 V and the nonlinearity of I - V has gradually increased from 10.5 to 255 so that the number of arrays can ideally be expanded to more than 426× 426 bits. In addition, because a small amount of silver ions formed a relatively discontinuous conductive filament (CF), the device with an auxiliary layer of 5 nm Ag has a wider high-resistance state distribution. Therefore, it is suitable as the source of physical unclonable function (PUF) key generation for hardware security. After being compared by the read circuit comparator, we have generated a RRAM PUF key with reliability 99.1%, uniformity 49.5%, and randomness 48.9%. To authors' knowledge, it is first report about nitride-based CRS RRAM as PUF for hardware security applications.

頁(從 - 到)4115-4121
期刊IEEE Transactions on Electron Devices
出版狀態Published - 2023 8月 1

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 電氣與電子工程


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