Chin. J. Semicond. > 2006, Volume 27 > Issue 7 > 1255-1258

PAPERS

Output Power of an AlGaN/GaN HFET on Sapphire Substrate

Zhang Zhiguo, Yang Ruixia, Li Li, Feng Zhen, Wang Yong and Yang Kewu

+ Author Affiliations

PDF

Abstract: The low breakdown voltage of AlGaN/GaN HFETs,which is caused by the poor buffer layer of GaN epitaxial wafer,is improved through mesa isolation and implantation isolation.Annealing at 500℃ for 50s after the gate metal deposition yields the best performance for an Ni-AlGaN/GaN diode.In particular,the ideality factor and barrier height reach 1.5 and 0.87eV,respectively.Optimization is achieved by comparing the performance of the gate and output power of AlGaN/GaN HFETs fabricated under different conditions.The output power of a 1mm-gate-wide AlGaN/GaN HFET on sapphire substrate is 4.57W, with a power added efficiency of 55.1% at 8GHz.

Key words: AlGaN/GaNHFETisolationrectified performanceannealingoutput power

  • Search

    Advanced Search >>

    Article Metrics

    Article views: 3504 Times PDF downloads: 1868 Times Cited by: 0 Times

    History

    Received: 20 August 2015 Revised: Online: Published: 01 July 2006

    Catalog

      Email This Article

      User name:
      Email:*请输入正确邮箱
      Code:*验证码错误
      Zhang Zhiguo, Yang Ruixia, Li Li, Feng Zhen, Wang Yong, Yang Kewu. Output Power of an AlGaN/GaN HFET on Sapphire Substrate[J]. Journal of Semiconductors, 2006, In Press. Zhang Z G, Yang R X, Li L, Feng Z, Wang Y, Yang K W. Output Power of an AlGaN/GaN HFET on Sapphire Substrate[J]. Chin. J. Semicond., 2006, 27(7): 1255.Export: BibTex EndNote
      Citation:
      Zhang Zhiguo, Yang Ruixia, Li Li, Feng Zhen, Wang Yong, Yang Kewu. Output Power of an AlGaN/GaN HFET on Sapphire Substrate[J]. Journal of Semiconductors, 2006, In Press.

      Zhang Z G, Yang R X, Li L, Feng Z, Wang Y, Yang K W. Output Power of an AlGaN/GaN HFET on Sapphire Substrate[J]. Chin. J. Semicond., 2006, 27(7): 1255.
      Export: BibTex EndNote

      Output Power of an AlGaN/GaN HFET on Sapphire Substrate

      • Received Date: 2015-08-20

      Catalog

        /

        DownLoad:  Full-Size Img  PowerPoint
        Return
        Return