SUB MOUNT FOR ELECTRO OPTICAL DEVICE OF HIGH SPEED ELECTRO OPTICAL MODULE

摘要

PURPOSE: A submount for electro optical device of a high speed electro optical module is provided to reduce the transmission loss and the reflection loss of the data by drastically reducing the parasitic effect remained at the peripheral of the wire bonding. CONSTITUTION: A submount for electro optical device of a high speed electro optical module includes a dielectric material(20), a pair of ground lines(22a,22c), a signal line(22b), a bias line(22d), a ground plane(28) and a via hole. The dielectric material(20) is in the shape of "L". The pair of ground lines(22a,22c), the signal line(22b) and the bias line(22d) are stacked on the top surface of the dielectric material(20) by using a co-planar waveguide-ground(CPW-G). The ground plane(28) is positioned inside of the dielectric material(20). And, the via hole is connected the ground lines(22a,22c) to the ground plane(28).