Patent ID: 8563342
Filing Date: 2013-10-22
Classification: B82Y,H01S

Abstract:
1. A method of making a semiconductor optical integrated device comprising the steps of: preparing a substrate having a main surface; forming semiconductor integrated devices on the main surface of the substrate, the semiconductor integrated devices being arranged in a first direction and in a second direction that intersects the first direction, a plurality of the semiconductor integrated devices each including a first optical semiconductor element and a second optical semiconductor element disposed adjacent to the first optical semiconductor element in the first direction; forming a plurality of bar-shaped semiconductor optical integrated device arrays by cutting the substrate in the second direction, each of the semiconductor optical integrated device arrays including two or more semiconductor optical integrated devices arranged linearly in the second direction; alternately arranging the plurality of semiconductor optical integrated device arrays and a plurality of spacers in a thickness direction of the substrate so as to be fixed in place; and forming a coating film on a facet of each semiconductor optical integrated device array, wherein the first optical semiconductor element includes a first stripe mesa structure, a first electrode disposed on the first stripe mesa structure, and a first bonding pad electrically connected to the first electrode, the first stripe mesa structure including a first optical waveguide layer, the second optical semiconductor element includes a second stripe mesa structure, a second electrode disposed on the second stripe mesa structure, and a second bonding pad electrically connected to the second electrode, the second stripe mesa structure including a second optical waveguide layer optically coupled to the first optical waveguide layer, and each spacer has a movable portion that faces the first bonding pad of one first optical semiconductor element, that protrudes toward the first bonding pad of said one first optical semiconductor element and is displaceable in a protruding direction, and that has a length in the second direction that is larger than a distance between outer side surfaces of the first bonding pads of semiconductor optical integrated devices that are located at opposite ends of a semiconductor optical integrated device array.