Patent ID: 7154130

Claim:
A semiconductor device comprising: a first field effect transistor including a source and a gate and disposed in a silicon carbide substrate; and a second field effect transistor including a drain and a gate and disposed in the substrate, wherein the first field effect transistor is a vertical type junction field effect transistor having the source, the gate, a drain and a channel, wherein the second field effect transistor is a lateral type junction field effect transistor having a source, the gate, the drain and a channel, wherein the drain of the second field effect transistor connects to the source of the first field effect transistor, wherein the gate of the second field effect transistor connects to the gate of the first field effect transistor, wherein the source of the vertical type junction field effect transistor is disposed on an opposite side of the drain of the vertical type junction field effect transistor, and wherein the source of the lateral type junction field effect transistor is disposed on a same side of the drain of the lateral type junction field effect transistor.