A semiconductor chip and a radio frequency circuit

Reflecting circuit connected to the tip end, branching circuit, to provide a semiconductor chip that can function well and matching circuit. Provided on at least one semiconductor element 11 is a semiconductor substrate formed, the wiring patterns 12 and 14 respectively connected to the terminals of the semiconductor element 11, is connected to the wiring patterns 12 and 14, the semiconductor substrate and another substrate a semiconductor chip having an electrode pad 13 and 15 for connecting the formed signal input circuit, a parallel wiring pattern 16 connected to the wiring patterns 12 and 14 at least one terminal end of the semiconductor element, and 18, are connected to the parallel wire pattern 16 and 18, separately from the signal input-output circuit, the reactance-circuit connection electrode pads 17 and 19 for electrically connecting a reactance circuit that is formed on another substrate, equipped with a.