Patent ID: 9379276
Filing Date: 2016-06-28
CPC Classification: G02B,H01L

Claim Text:
1. A method of manufacturing an optical interconnection module, comprising the steps (1) to (8): (1) providing a silicon semiconductor substrate having a front surface, the silicon semiconductor substrate including a silicon semiconductor layer and a silicon oxide layer, the silicon oxide layer being formed between the silicon semiconductor layer and the front surface of the silicon semiconductor substrate; (2) depositing a modulator material layer on the front surface of the silicon semiconductor substrate; (3) using silicon wafer processing, patterning the modulator material layer to form a silicon waveguide modulator device portion at the front surface of the silicon semiconductor substrate, wherein an optical output from a laser-diode device is optically connected to an optical input terminal of the modulator device portion; (4) forming a photodiode on the substrate and a driver IC on the front surface of the silicon semiconductor substrate to be juxtaposed between the modulator device portion and the photodiode; (5) forming, using the silicon wafer processing, a tapered part on one end of the modulator device portion so as to provide a beam turning portion on the modulator device portion; (6) forming a bias power supply line for driving the optical source device on the front surface of the silicon semiconductor substrate; and (7) forming high-frequency electric lines on the silicon semiconductor substrate connecting the photodiode and the modulator device portion with the driver IC, respectively, wherein the modulator device portion is monolithically formed and integrated onto the front surface of the silicon semiconductor substrate.