Optical communication module

An optical communication module having a photoelectric conversion function, the optical communication module comprising:

• a casing made of metal;
• a board housed in the casing and having an electrical connector at one end thereof;
• a light emitting element mounted on a front surface of the board;
• a driving element mounted on the front surface of the board and driving the light emitting element;
• a holding member mounted on the front surface of the board so as to cover the light emitting element and the driving element;
• an optical fiber optically coupled with the light emitting element;
• an optical member held by the holding member and optically coupling the light emitting element with the optical fiber;
• a plurality of thermal vias which pass through the board and each of which has a first end face exposed on the front surface of the board and a second end face exposed on a back surface of the board;
• and
• a first fixing screw and a second fixing screw which pass through the board and are screwed into the casing and which press the back surface of the board against a bottom surface of the casing,
• wherein at least one of the thermal vias has the first end face thermally connected to the driving element and the second end face thermally connected to the bottom surface of the casing, and
• wherein the first fixing screw and the second fixing screw are each disposed in a region between the electrical connector and the holding member and on either outer side of the holding member.