Patent ID: 8878250

Claim:
An electronic device, comprising: a base wafer whose surface is made of a silicon crystal; a Group 3-5 compound semiconductor crystal formed directly or indirectly on a partial region of the silicon crystal; an electronic element including a portion of the Group 3-5 compound semiconductor crystal as an active layer; an insulating film formed directly or indirectly on the base wafer and covering the electronic element; an electrode formed directly or indirectly on the insulating film; a first coupling wiring extending through the insulating film, having at least a portion thereof formed directly or indirectly on the insulating film, and electrically coupling the electronic element with the electrode; a passive element formed directly or indirectly on the insulating film; and a second coupling wiring extending through the insulating film, having at least a portion thereof formed directly or indirectly on the insulating film, and electrically coupling the electronic element with the passive element wherein the Group 3-5 compound semiconductor crystal is formed directly or indirectly on the partial region of the silicon crystal via a seed material that alleviates a lattice mismatch between the silicon crystal and the Group 3-5 compound semiconductor crystal, wherein the seed material has a composition of C x Si y Ge z Sn 1-x-y-z (0≦x<1, 0≦y≦1, 0≦z<1, 0<x+y+z≦1).