A booster circuit is disclosed, the booster circuit having a plurality of booster cells tandem-connected, each of the boosters having a transfer
transistor and a
capacitor, an input terminal, a drain, and a gate of the transfer
transistor being connected, a source of the transfer
transistor being an output terminal, a first terminal of the
capacitor being connected to the source of the transfer transistor, a
clock signal being supplied to a second terminal of the
capacitor, wherein the transfer transistor is composed of a triple-well having a first well and a second well, the first well being formed on a
semiconductor substrate, the second well being formed on the first well, and wherein the
semiconductor substrate is connected to a reference
voltage, a
diffusion layer in the first well, a first
diffusion layer in the second well, a second
diffusion layer in the second well, the first terminal of the capacitor, and the gate of the transfer transistor being connected, the
conduction type of the first well being the same as the
conduction type of the
diffusion layer in the first well, the
conduction type of the second well being the same as the conduction type of the first
diffusion layer in the second well, the conduction type of the second well being different from the conduction type of the second
diffusion layer in the second well.