Patent ID: 8124958

Claim:
A semiconductor device comprising: a p-type group IV layer; a nucleating layer formed on the group IV layer, the nucleating layer including a III-V compound selected from the group consisting of AlAs, AlSb, AlN, BAs, BSb, GaN, GaSb, and InAs; and a first III-V compound layer formed on the nucleating layer, the first III/V compound layer including, as a group III element, at least one of gallium, indium, and aluminum, the first III/V compound layer including phosphorous as a group V element, the p-type group IV layer having diffused therein phosphorous atoms from the first III-V compound layer, a concentration of the phosphorous atoms diffused in the p-type group IV layer being a function of a thickness of the nucleating layer, the first III-V compound layer having diffused therein group IV atoms from the p-type group IV layer, a concentration of the group IV atoms diffused in the first III-V compound layer being a function of the thickness of the nucleating layer.