Patent ID: 8906159

Claim:
A method of fabricating a (Al, Ga, In)N-based compound semiconductor device, comprising: growing a (Al, Ga, In)N-based compound semiconductor layer (P layer) including P type impurities on a substrate in a growth chamber including hydrogen carrier gas along with source gases including ammonia gas; discharging hydrogen, ammonia and gas including hydrogen from the growth chamber at a temperature higher than a temperature at which impurities in the P layer and hydrogen contained in the gases are bonded to each other after the growth of the P layer is completed; after the discharging of the hydrogen, ammonia and gas including hydrogen, lowering the temperature of the substrate with the P layer formed thereon to such an extent that the substrate can be withdrawn to the outside from the growth chamber; withdrawing the substrate with the P layer formed thereon from the growth chamber; and forming an electrode on the P layer, the electrode comprising Pt, or a combination of Pt and at least one of Pd and Au, or an alloy of Pt and at least one of Pd and Au, wherein the grown P layer is not subjected to an annealing process.