US Patent 7952145 MOS transistor device in common source configuration

A semiconductor device includes a semiconductor substrate, a first p-channel laterally diffused metal oxide semiconductor (LDMOS) transistor formed over the semiconductor substrate and additional p-channel LDMOS transistors formed over the semiconductor substrate. First drain and gate electrodes are formed over the substrate and are coupled to the first LDMOS transistor. Additional drain and gate electrodes are formed over the substrate and are coupled to the second LDMOS transistor. A common source electrode for the first and second LDMOS transistors is also formed over the substrate.