Patent ID: 7907924

Claim:
A semiconductor device interconnecting unit configured to input/output a high-frequency signal having a millimeter wave band to/from a semiconductor device, said semiconductor device interconnecting unit comprising: a part of a band pass filter configured to pass therethrough the high-frequency signal having a millimeter wave band by using a first LC resonance circuit including a first fixed capacitor, a first variable capacitor, and a first fixed inductor; and a remainder of said band pass filter, said remainder including a second LC resonance circuit including a second fixed capacitor, a second variable capacitor, and a second fixed inductor; wherein said part and said remainder are separated from each other, said part is provided inside said semiconductor device, and said remainder is provided outside said semiconductor device, and the part and the remainder are connected through a bonding wire connected to a first bond pad formed on a surface of the part, and to a second bond pad formed on a surface of the remainder, and wherein a pass band for the high-frequency signal having a millimeter wave band is changed by changing capacitance values of said variable capacitors.