Abstract:To improve the breakdown voltage and reduce the specific on-resistance of a small size silicon on insulator (SOI) device, a dual-trench SOI high voltage device with an L-shaped source field plate is proposed. The device has the features as follows: first, a trench gate is adopted. The trench gate widens the current conduction area and makes the current conduction path shorter, thus lowering the specific on-resistance. Second, a SiO2 dielectric layer is introduced into the drift region. This dielectric layer ca… Show more
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