Patent ID: 9335474
Filing Date: 2016-05-10
CPC Classification: G02B,H01L

Claim Text:
1. A method of fabricating an optical device, the method comprising: sequentially forming a lower-clad layer, a platform core, and an upper-clad layer on both of a waveguide region of a substrate and a mounting region of the substrate; performing a first etch process on a portion of the upper-clad layer, a portion of the platform core, and a portion of the lower-clad layer, which are each disposed on the mounting region of the substrate, to form a PLC waveguide in the waveguide region and adjust the portion of the lower-clad layer to have a first height in the mounting region; performing a second etch process on the portion of the lower-clad layer having the first height disposed on the mounting region of the substrate to form a terrace having a trench and the first height, and adjust the portion of the lower-clad layer to have a second height; forming a chip alignment mark on a mounting surface of an optical active chip comprising a chip core therein; forming a solder film directly on the chip alignment mark; after the forming the solder film, mounting the optical active chip on the mounting region of the substrate by aligning the optical active chip by interlocking between the trench of the terrace and the chip alignment mark of the optical active chip.