| 摘要 |
<p>The present invention relates to an optical integrated circuit device having a protrusion, a fabrication method of the same and a module of an optical communication transmission and receiving apparatus using the same. The optical integrated circuit device comprises a semiconductor substrate, a convex portion formed on an upper surface of the semiconductor substrate and having a taper shape lateral surface, a protection film formed on a lateral wall surface of the convex protion, a first electrode formed on an upper surface of the convex portion, and a second electrode formed on an upper surface of the semiconductor substrate, wherein said convex portion is formed of a first current disconnection layer, a second current disconnection layer and a clad layer.</p> |
