Patent ID: 9746743
Date: 2017-08-29
CPC Classifications: G02B,G02F

Claim:
1. A method for producing an optical modulator device, the method comprising the steps of: depositing or growing a first low refractive index material layer as a cladding layer on top of a silicon base substrate; depositing or transferring an electro-optic material layer on top of the first low refractive index material layer to form a slab core region; depositing a high refractive index material layer on top of the slab core region and forming a waveguide by etching the high refractive index material layer; forming an etch mask on the optical modulator device using a bilayer resist process; etching the electro-optic material to access the first low refractive index material layer; forming an electrode layer by depositing a metal and utilizing a lift-off process; depositing a second low refractive index material layer; etching vias in the second low refractive index material layer; and forming an RF transmission line layer by electro-plating or another layer-forming method.