A semiconductor device in accordance with an exemplary aspect of the present invention includes: an even number of transistor pairs; connection nodes connecting the n-type transistors and the p-type transistors of the transistor pairs; and inter-gate wiring lines connected to the connection nodes, each inter-gate wiring line connecting a gate of the p-type transistor of one of the transistor pairs disposed in the subsequent stage of one of the transistor pairs for which each connection node is provided, wherein the n-type transistor of a first transistor pair is disposed in a p-well region different from both a p-well region in which the n-type transistor of a second transistor pair disposed in two stages preceding of the first transistor pair is disposed and a p-well region in which the n-type transistor of a third transistor pair disposed in two stages subsequent of the first transistor pair is disposed.