Patent ID: 7692208

Claim:
A semiconductor optical device comprising: a casing having a concave-shaped cavity with an opening and a bottom portion; at least one first lead frame electrode with one end portion exposed at the bottom portion of the casing, the at least one first lead frame electrode extending from the bottom portion of the casing and onto an outside surface of the casing that is substantially perpendicular to the bottom portion, and the at least one first lead frame electrode being bent substantially perpendicularly at the outside surface in a direction towards the opening and including an other end portion located on an outside surface of the casing; at least one second lead frame electrode having one end portion exposed at the bottom portion of the casing, the at least one second lead frame electrode extending from the bottom portion of the casing and onto a respective outside surface of the casing that is at least one of, opposite to and perpendicular to, the outside surface from which the at least one first lead frame electrode extends, the at least one second lead frame electrode being bent substantially perpendicularly at the respective outside surface in a direction away from the opening in the casing and including an other end portion that includes an outer surface that is substantially coplanar with an outer surface of the other end portion of the at least one first lead frame electrode; and at least one semiconductor optical chip being mounted on the one end portion of the at least one first lead frame electrode, one electrode of the at least one semiconductor optical chip being electrically connected to the one end portion of the at least one first lead frame electrode, and an other electrode of the at least one semiconductor optical chip being electrically connected to the one end portion of the at least one second lead frame electrode.