Patent ID: 7816157

Claim:
A method of producing an integrated semiconductor optical device, the method comprising the steps of: (a) preparing a substrate having a main surface having: (a1) a first area for forming a first semiconductor optical device to be included in the integrated semiconductor optical device; and (a2) a second area for forming a second semiconductor optical device to be included in the integrated semiconductor optical device; (b) forming on the substrate a semiconductor laminate for forming the first semiconductor optical device; (c) forming an insulating-film mask on the semiconductor laminate on the first area; (d) etching the semiconductor laminate by using the insulating-film mask to form on the first area a first semiconductor portion having a side face extending in a specified direction perpendicular to the main surface; (e) after the etching of the semiconductor laminate, selectively growing a first semiconductor layer for the second semiconductor optical device through a metal organic vapor phase epitaxy method while leaving the insulating-film mask unchanged; and (f) while leaving the insulating-film mask unchanged, selectively growing on the first semiconductor layer a second semiconductor layer for the second semiconductor optical device; wherein in growing the first semiconductor layer, an etching gas containing a halogen element is supplied in addition to a material gas for the growing of the first semiconductor layer.