Patent ID: 7880180

Claim:
A composite semiconductor device, comprising: a common substrate; a first semiconductor light emitting structure; and a second semiconductor light emitting structure, wherein the first semiconductor light emitting structure includes an epitaxial grown layer having a light emitting layer and is located adjacent at least part of the common substrate, and the first semiconductor light emitting structure includes a notch formed in the epitaxial grown layer, wherein the epitaxial grown layer is grown on a first grown substrate which is different than the common substrate, and removed from the first grown substrate, wherein the second semiconductor light emitting structure is located in the notch of the epitaxial grown layer; wherein the first semiconductor light emitting structure includes a bonding layer located between the common substrate and the epitaxial grown layer, the bonding layer bonding both the common substrate and the epitaxial grown layer together; and wherein the bonding layer includes an ohmic electrode layer and a bonding material layer composed of a metal, and the ohmic electrode layer is formed in contact with the epitaxial grown layer.