INPUT OR OUTPUT CIRCUIT AND RECEPTION OR TRANSMISSION CIRCUIT

摘要

PROBLEM TO BE SOLVED: To obtain excellent reflection characteristics.SOLUTION: An input or output circuit includes: a first wiring layer 24a receiving an input from a circuit 22 or outputting a signal to the circuit; a second wiring layer 30a formed above or below the first wiring layer; a third wiring layer 24b on which a bump outputting the signal to the outside or receiving the signal from the outside is formed; a fourth wiring layer 30b formed below the third wiring layer; and an inductor L0 having one end and the other end that are electrically connected to the first wiring layer and the third wiring layer.