Patent ID: 8548416
Filing Date: 2013-10-01
Classification: H01L,H03D

Abstract:
1. A semiconductor chip which is formed by a semiconductor substrate on which there are provided a two-terminal semiconductor device including a single diode or an anti-parallel diode pair composed of two diodes having opposite polarities connected in parallel, two wiring patterns that are respectively connected to terminals of the two-terminal semiconductor device and formed on a first-terminal side and a second-terminal side of the two-terminal semiconductor device, and two electrode pads respectively connected to the wiring patterns for connecting a signal input/output circuit that is formed on a different substrate provided separately from the semiconductor chip, wherein the semiconductor chip further comprises: two parallel wiring patterns that are respectively connected to the wiring patterns on terminal ends of the two-terminal semiconductor device and formed on a first-terminal side and a second-terminal side of the two-terminal semiconductor device; and two reactance-circuit connection electrode pads respectively connected to the parallel wiring patterns for respectively electrically connecting reactance circuits that are formed on the different substrate separately from the signal input/output circuit, wherein a length of a local-oscillator branching stub is set to a length with which a local-oscillator signal is short-circuited at a first terminal of the anti-parallel diode pair, and a length of a radio-frequency branching stub is set to a length with which a radio-frequency signal is short circuited at a second terminal of the anti-parallel diode pair.