Semiconductor device with circuits connected to each other in contactless manner

A semiconductor device comprising:

• a first semiconductor chip having a first circuit being capable of generating a signal and a first inductor electrically connected to said first circuit formed on a main surface thereof;
• a second semiconductor chip having a second circuit being capable of processing said signal formed on a main surface thereof;
• and
• an interconnect substrate having wiring layers and a second inductor connected to one of said wiring layers,
• wherein said first semiconductor chip is mounted on said interconnect substrate such that said main surface of said first semiconductor chip is faced to one portion of said interconnect substrate and such that said first inductor and said second inductor are overlapped to each other in a plan view,
• wherein said second semiconductor chip is mounted on said interconnect substrate such that said main surface of said second semiconductor chip is faced to another portion of said interconnect substrate and such that said second circuit is electrically connected to said second inductor via said one of said wiring layers, and
• wherein said first circuit of said first semiconductor chip and said second circuit of said second semiconductor chip are electrically connected to each other in contactless manner by said first and second inductors.