Patent ID: 7482184

Claim:
Manufacturing method of an optoelectronic device, comprising: a—manufacturing optical guiding elements in a superficial layer of a composite substrate, said composite substrate comprising a support substrate, an oxide interlayer provided on the support substrate and the superficial layer provided on a first side of the oxide interlayer, the material of the oxide interlayer having a lower optical index than that of the superficial layer, b—assembling the composite substrate with an electronic circuit means to form an assembly having the support substrate as an outermost layer, c—removing the support substrate, and d—generating optically active means on a second surface of the oxide interlayer of the assembly such that the oxide interlayer is interposed between the active means and the superficial layer, said interlayer having a thickness of from 50 nm to 1 μm in order to ensure proper electromagnetic coupling between the optically active means and the guiding elements through the oxide interlayer.