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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作,涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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Now showing 1 - 6 of 6
  • Item type:Item,
    Enhancement of the stability of resistive switching characteristics by conduction path reconstruction
    (2013-07-22)
    Huang, Jheng-Jie
    ;
    Chang, Ting-Chang
    ;
    Yu, Chih-Cheng
    ;
    Huang, Hui-Chun
    ;
    Chen, Yu-Ting
    In this study, a Pt/BiFeO3/TiN device was fabricated and the resistance switching characteristics were investigated. After the first forming process, the conduction path was formed and exhibited unstable bipolar switching characteristics. Subsequently, the original conduction path was destroyed thoroughly by high negative bias. By reconstructing the conduction path after a second forming process (re-forming process), the device exhibits stable bipolar switching characteristics. Transmission electron microscopy analysis indicates that the stability of switching behavior was enhanced because of the joule heating effect, and is an easy way to improve the resistance switching characteristics. (C) 2013 AIP Publishing LLC.
  • Item type:Item,
    Charge storage characteristics of Mo nanocrystal dependence on Mo oxide reduction
    (2008-12-01)
    Lin, Chao-Cheng
    ;
    Chang, Ting-
    ;
    Tu, Chun-Hao
    ;
    Chen, Wei-Ren
    ;
    Hu, Chih-Wei
    An oxygen incorporated Mo silicide was explored to form the Mo nanocrystals after rapid thermal annealing. Transmission electron microscopy showed the nanocrystals embedded in SiO(x). Charge storage characteristics of Mo nanocrystals influenced by the Mo oxide and the surrounding oxide were investigated through x-ray photoelectron spectroscopy and the electrical measurement. X-ray photoelectron spectra analyses revealed the redox reaction in the oxygen incorporated Mo silicide layer after rapid thermal annealing. The memory window and retention were improved due to reduction in Mo oxide.
  • Item type:Item,
    Improvement of Charge-Storage Characteristics of Mo Nanocrystal Memory by Double-Layer Structure
    (2009)
    Lin, Chao-Cheng
    ;
    Chang, Ting-Chang
    ;
    Tu, Chun-Hao
    ;
    Chen, Wei-Ren
    ;
    Feng, Li-Wen
    An oxygen-incorporated Mo silicide layer was explored to form the Mo nanocrystals after rapid thermal annealing. Transmission electron microscopy showed the nanocrystals embedded in SiO(x). Charge-storage characteristics of Mo nanocrystals influenced by Mo oxide and its surrounding oxide were investigated through X-ray photoelectron spectroscopy and electrical measurement. X-ray photoelectron spectral analyses revealed a redox reaction in the oxygen-incorporated Mo silicide layer after rapid thermal annealing at a critical temperature. The memory window and retention were improved because of the reduction of Mo oxide. Furthermore, the double-layer nanocrystal structure was fabricated through the annealed stacked oxygen incorporated Mo silicide layer. A larger memory window and long retention were found for the double-layer nanocrystal structure. We used an energy band diagram to explain the difference in retention characteristics between single- and double-layer structures.
  • Item type:Item,
    Charge Storage Characteristics of Mo Nanocrystal Memory Influenced by Ammonia Plasma Treatment
    (2009)
    Lin, Chao-Cheng
    ;
    Chang, Ting-Chang
    ;
    Tu, Chun-Hao
    ;
    Chen, Wei-Ren
    ;
    Hu, Chih-Wei
    Mo nanocrystal memory was fabricated through annealing the oxygen-incorporated Mo and Si layers. We then investigated the influence an of ammonia plasma treatment on the nonvolatile memory characteristics of a charge storage layer composed of Mo nanocrystal memory embedded in SiO(x). Transmission electron microscopy revealed the nanostructure of the charge storage layer, and X-ray photoelectron spectra analyses revealed that nitrogen was incorporated into the charge storage layer. Electric analyses indicated that the memory window reduced, and both retention and endurance improved after the treatment. The reduction in the memory window was attributed to the decrease in charge trapping centers in the surrounding oxide after the treatment. The improvement of retention was interpreted in terms of the nitrogen passivation of traps in the oxide around the Mo nanocrystals. The robust endurance characteristic was attributed to the improvement of the quality of the surrounding oxide by nitrogen passivation.
  • Item type:Item,
    Improved reliability of Mo nanocrystal memory with ammonia plasma treatment
    (2009-02-09)
    Lin, Chao-Cheng
    ;
    Chang, Ting-Chang
    ;
    Tu, Chun-Hao
    ;
    Chen, Wei-Ren
    ;
    Hu, Chih-Wei
    We investigated ammonia plasma treatment influence on the nonvolatile memory characteristics of the charge storage layer composed of Mo nanocrystals embedded in nonstoichiometry oxide (SiO(x)). X-ray photoelectron spectra analyses revealed that nitrogen was incorporated into the charge storage layer. Electric analyses indicated that the memory window was reduced and the retention and the endurance improved after the treatment. The reduction in the memory window and the improvement in retention were interpreted in terms of the nitrogen passivation of traps in the oxide around Mo nanocrystals. The robust endurance characteristic was attributed the improvement of the quality of the surrounding oxide by nitrogen passivation.
  • Item type:Item,
    Charge storage characteristics of high density Mo nanocrystal embedded in silicon oxide and silicon nitride
    (2010-02-24)
    Lin, Chao-Cheng
    ;
    Chang, Ting-Chang
    ;
    Tu, Chun-Hao
    ;
    Chen, Shih-Ching
    ;
    Hu, Chih-Wei
    We investigated the formation and charge storage characteristics of Mo nanocrystals in silicon oxide and in silicon nitride by rapid thermal annealing of oxygen- and nitrogen-incorporated Mo and Si mixed layers. A high density of Mo nanocrystal (6 x 10(12) cm(-2)) was formed in the nitrogen-incorporated layer. Electrical analyses indicated that the memory window of the Mo nanocrystal embedded in the nitride is larger than that in the oxide. A reliability test showed that the Mo nanocrystal in the nitride has better reliability than the Mo nanocrystal in the oxide, which was explained by an electrical field simulation.