Patent ID: 6110277
Filing Date: 2000-08-29
Classification: H01L,H01S

Abstract:
Process for the fabrication of epitaxial layers of a III-V nitride compound semi-conductor having the structure In.sub.x Al.sub.y Ga.sub.1-x-y N (0.ltoreq.x, 0.ltoreq.y, x+y.ltoreq.1) on a substrate made up of monocrystal silicon, such process comprising the following steps:providing the monocrystal silicon substrate;creating a parcel-like structure on the surface of the substrate, such that the silicon surface in the parcel is uncovered and the edges of the parcels are covered by a masking material;growing a nucleation layer on the silicon surface in the parcels; andepitaxially growing the nitride compound semiconductor exclusively in the parcels on the nucleation layer.