SEMICONDUCTOR DEVICE PROVIDED WITH MOS TRANSISTOR

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor device provided with a MOS transistor operable with high accuracy at a high speed under a low voltage.

SOLUTION: The semiconductor device is provided with: at least one MOS transistor 10 including a gate input section 12 and a body input section 14; and a control circuit 20 including a first output section 22 for sending a first control signal (gate voltage Vg(t)) to the gate input section 12, and a second output section 22 for sending a second control signal (body voltage Vb(t)) to the body input section 14. The control circuit 20 turns on the MOS transistor 10 through the application of the gate voltage Vg(t) and thereafter changes a level of the body voltage Vb(t) to increase a threshold value of the MOS transistor 10 while the MOS transistor 10 stays in the ON state.

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