Patent ID: 7248480

Claim:
A semiconductor element comprising: a capacitance variable section provided, on an insulative substrate, with a variable capacitance diode equipped with first and second control electrodes; an insulating layer provided over the capacitance variable section; and an inductor section which includes first and second input/output electrodes and first and second control input/output electrodes distinct from said first and second input/output electrodes provided on an upper side of the insulating layer so as to be exposed respectively, and which includes a turbinated spiral electrode for electrically connecting the first input/output electrode and the second input/output electrode, a first control lead-out electrode for electrically connecting between the first control electrode and the first control input/output electrode, and a second control lead-out electrode for electrically connecting between the second control electrode and the second control input/output electrode, all of which are respectively provided within the insulating layer.