An integrated circuit includes a first transistor, a horizontal routing track extending in a first direction in a first metal layer, and a via connector conductively connecting the horizontal routing track to a first terminal of the first transistor. The integrated circuit also includes a backside routing track extending in the first direction in a backside metal layer, and a backside via connector conductively connecting the backside routing track to a second terminal of the first transistor. The backside metal layer and the first metal layer are formed at opposite sides of a semiconductor substrate. In the integrated circuit, either the first terminal or the second terminal is a gate terminal of the first transistor.