Citation: |
Luo Xiaorong, Zhang Wei, Gu Jingjing, Liao Hong, Zhang Bo, Li Zhaoji. A new double gate SOI LDMOS with a step doping profile in the drift region[J]. Journal of Semiconductors, 2009, 30(8): 084006. doi: 10.1088/1674-4926/30/8/084006
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Luo X R, Zhang W, Gu J J, Liao H, Zhang B, Li Z J. A new double gate SOI LDMOS with a step doping profile in the drift region[J]. J. Semicond., 2009, 30(8): 084006. doi: 10.1088/1674-4926/30/8/084006.
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A new double gate SOI LDMOS with a step doping profile in the drift region
DOI: 10.1088/1674-4926/30/8/084006
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Abstract
A new double gate SOI LDMOS with a step doping profile in the drift region is proposed. The structure is characterized by one surface gate and another embedded gate under the P-body region. The broadened current flow path and the majority carrier accumulation layer on the side wall of the embedded gate reduce the specificon-resistance (Ron,sp). The electric field distribution is improved due to the embedded gate and step doping profile, resulting in a high breakdown voltage (BV) and low Ron,sp. The influences of device parameters on BV and Ron,sp, spare investigated by simulation. The results indicate that BV is increased by 35.2% and Ron,sp is decreased by 35.1% compared to a conventional SOI LDMOS. -
References
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Proportional views