| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit which does not require any feedback circuit nor any external specific power supply for substrate bias for compensating the dispersion of threshold voltages of switching elements. SOLUTION: The semiconductor integrated circuit 100 comprises a semiconductor substrate 5, a plurality of well regions 10, 20 formed in the surface of the substrate and mutually electrically isolated, a plurality of MOS transistors MN, MP formed in the plurality of the well regions, and substrate-bias generation circuits BN, BP that respectively supply substrate biases to the plurality of the well regions in accordance with manufacturing dispersion of measured threshold voltages of the plurality of the MOS transistors to make each threshold voltage of the plurality of the MOS transistors adaptable to a prescribed threshold voltage. COPYRIGHT: (C)2005,JPO&NCIPI
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