Importance

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Abstract

High-voltage field-effect transistor is provided that includes a drain terminal, a source terminal, a body terminal, and a gate terminal. A gate oxide and a gate electrode, adjacent to the gate oxide, is connected to the gate terminal. A drain semiconductor region of a first conductivity type is connected to the drain terminal. A source semiconductor region of a first conductivity type is connected to the source terminal. A body terminal semiconductor region of a second conductivity type is connected to the body terminal. A body semiconductor region of the second conductivity type, is partially adjacent to the gate oxide to form a channel and is adjacent to the body terminal semiconductor region. A drift semiconductor region of the first conductivity type is adjacent to the drain semiconductor region and the body semiconductor region, wherein in the drift semiconductor region, a potential barrier is formed in a region distanced from the body semiconductor region.

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First Claim