Semiconductor device and method for adjusting phase characteristics thereof

A semiconductor device comprising:

• a base;
• a first circuit board provided on the base;
• a second circuit board provided on the base at a certain interval from the first circuit board;
• a first connector provided with a first wire that is bridged between an upper surface of the first circuit board and an upper surface of the second circuit board to connect the two boards;
• and
• a first ferrite arranged on the base and directly below the first wire between the first circuit board and the second circuit board, wherein
• the first connector is provided with a plurality of the first wires that are bridged in parallel at a plurality of locations between the upper surface of the first circuit board and the upper surface of the second circuit board to connect the two boards, and
• the first ferrite is a rectangular body with both side surfaces in a longitudinal direction facing side surfaces of the first circuit board and the second circuit board, respectively, and with both ends in the longitudinal direction having a length exceeding a width of an alignment direction of the plurality of first wires, and is arranged directly below all of the plurality of first wires.