Patent ID: 6882210

Claim:
A semiconductor switching circuit device formed on a substrate, comprising: a first, a second, a third and a fourth field-effect transistor, each of said transistors having a source electrode, a gate electrode and a drain electrode which are formed on a channel layer of the substrate; a first, a second, a third and a fourth input terminal pad corresponding to the first, second, third and fourth transistors, respectively, the source electrode or the drain electrode of each of the four transistors being connected to the corresponding input terminal pad thereof; a first common output terminal pad being electrically in direct contact with the source electrode or the drain electrode of the first transistor and being electrically in direct contact with the source electrode or the drain electrode of the second transistor, the two electrodes of the first and second transistors which are electrically in direct contact with the first common output terminal pad not being connected to any of the input terminal pads; a second common output terminal pad being electrically in direct contact with the source electrode or the drain electrode of the third transistor and being electrically in direct contact with the source electrode or the drain electrode of the fourth transistor, the two electrodes of the third and fourth transistors which are electrically in direct contact with the second common output terminal pad not being connected to any of the input terminal pads; a first control terminal pad connected to the gate electrodes of the first and third transistors; and a second control terminal pad connected to the gate electrodes of the second and fourth transistors.