Importance

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Abstract

An integrated circuit formed on a semiconductor substrate and configured to accommodate higher voltage devices and low voltage devices therein. In one embodiment, the integrated circuit includes a transistor having a gate located over a channel region recessed into a semiconductor substrate, and a source/drain including a lightly doped region located adjacent the channel region and a heavily doped region located adjacent the lightly doped region. The transistor also includes an oppositely doped well located under and within the channel region. The transistor still further includes a doped region, located between the heavily doped region and the oppositely doped well, having a doping concentration profile less than a doping concentration profile of the heavily doped region. The integrated circuit also includes a driver switch of a driver formed on the semiconductor substrate.

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First Claim