MULTI-CHANNEL OPTICAL TRANSMISSION MODULE AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a multi-channel optical transmission module that can be mounted without damaging a semiconductor waveguide even when an entire array chip face is pressurized by using an array chip in which a wiring board support section is integrated, and that can have a sufficient high frequency characteristic which is a characteristic of flip-chip mounting for all channels while securing a heat dissipation property and restraining costs.SOLUTION: A multilayer channel optical transmission module according to the present invention comprises: an LD carrier; a semiconductor element array mounted on the LD carrier and provided with an optical function section and a wiring board support section; a flip-chip wiring board arranged above the semiconductor element array and fixed to the wiring board support section; and a gold bump that is high frequency wiring for connecting an electrode formed on a surface of the optical function section and the flip-chip wiring board. Maximum thickness of the wiring board support section is equal to or higher than that of the optical function section.