Junction Barrier Controlled Schottky Rectifiers

  • B. Jayant Baliga


In the case of Schottky rectifiers, it is necessary to trade-off the on-state (or conduction) power loss against the reverse blocking power loss by optimizing the Schottky barrier height1. As the Schottky barrier height is reduced, the on-state voltage drop decreases producing smaller conduction power loss. At the same time, the smaller barrier height produces an increase in the leakage current leading to larger reverse blocking power loss. The power loss can be minimized by reducing the Schottky barrier height at the expense of a reduced maximum operating temperature. This optimization process is exacerbated by the rapid increase in the leakage current with increasing reverse bias voltage due to the Schottky barrier lowering and pre-breakdown multiplication phenomena.


Leakage Current Schottky Barrier Breakdown Voltage Schottky Barrier Height Schottky Contact 
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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.North Carolina State UniversityPower Semiconductor Research CenterRaleigh

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