Patent ID: 7723137

Claim:
A method for manufacturing an optical device having a semiconductor element with an active layer junction surface connected to a waveguide path, and a substrate with a top surface, a side surface, a horizontal position marker and a vertical position marker, said substrate providing a mount for said semiconductor element, the method comprising the steps of: forming in said top surface a concave portion being at least partially surrounded by sidewalls; mounting to a sidewall of said concave portion said semiconductor element; forming through a said sidewall a groove extending to said side surface from said concave portion; positioning said semiconductor element horizontally within said concave portion by using said horizontal position marker; positioning said semiconductor element vertically within said concave portion by using said vertical position marker; arranging along said side surface a heat dissipation plate radiating heat generated from said semiconductor element so that said semiconductor element is connected to said heat dissipation plate through said groove; and arranging said semiconductor element within said concave portion so that said active layer junction surface is substantially vertical relative to said substrate and opposes said heat dissipation plate.