Incorporation of Resistive Random Access Memory into Low‐Temperature Polysilicon Transistor with Fin‐Like Structure as 1T1R Device

Abstract In this study, a one transistor one resistor (1T1R) structure combining a fin‐like low‐temperature polycrystalline‐silicon (LTPS) transistor and a resistive random access memory (RRAM) is successfully fabricated. For the fin‐like LTPS transistor, both n‐type and p‐types show excellent elect...

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Main Authors: Wei‐Chen Huang, Hao‐Xuan Zheng, Po‐Hsun Chen, Ting‐Chang Chang, Yung‐Fang Tan, Shih‐Kai Lin, Yong‐Ci Zhang, Fu‐Yuan Jin, Chung‐Wei Wu, Yu‐Hsuan Yeh, Sheng‐Yao Chou, Hui‐Chun Huang, Yan‐Wen Chen, Simon M. Sze
Format: Article
Language:English
Published: Wiley-VCH 2020-06-01
Series:Advanced Electronic Materials
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Online Access:https://doi.org/10.1002/aelm.202000066
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Summary:Abstract In this study, a one transistor one resistor (1T1R) structure combining a fin‐like low‐temperature polycrystalline‐silicon (LTPS) transistor and a resistive random access memory (RRAM) is successfully fabricated. For the fin‐like LTPS transistor, both n‐type and p‐types show excellent electrical output characteristics. Fin‐like structure produces more stable output characteristics. Also, the forming and current–voltage (I–V) characteristics are measured in this study, and the RRAM exhibits a forming voltage of about −1.9 V. As for the I–V switching property, the devices are stable and show excellent performance, with the set and reset voltages showing only minimal change over 100 cycles. Moreover, combining the fin‐like LTPS transistor and RRAM into a 1T1R structure results in favorable operation over 100 cycles, with excellent retention and endurance. According to these results, RRAM can be successfully combined with a fin‐like LTPS transistor for application in current integrated circuit processes without difficulty.
ISSN:2199-160X