Patent ID: 8822817

Claim:
An assembly, comprising: a first subassembly further comprising, a first GaAs wafer substrate; and a first bonding layer upon the first wafer substrate, the first bonding layer lattice matched to the first wafer substrate; a second subassembly further comprising, a second InP wafer substrate; and a second bonding layer upon the second wafer substrate, the second bonding layer lattice matched to the second wafer substrate; wherein the first and second bonding layers are directly bonded to form an interface and to form the assembly; the assembly having a bond strength of greater than or equal to about 4 J/m 2 across the bond interface between the first and second bonding layers; and wherein the first bonding layer is an (Al)(Ga)InP(As)(Sb) layer; and the second bonding layer is an (Al)(Ga)InP(As)(Sb) layer.