OPTICAL DEVICE WITH CHIP LEVEL PRECISION ALIGNMENT

摘要

Optical packages and a method of fabricating same, wherein an active optical device can be located relative to a substrate and coupler. The structure includes a substrate having electrical contact pads and alignment pads with precision aligned through-holes for at least one optical fiber. The optical fibers are supported by a housing, or coupler, having alignment pins that are precision located relative to the through-holes in the substrate and the optical fiber. A die, or active optical device, with one or more active optical elements on a first die surface and electrical contacts on a second die surface, is aligned with the electrical pads of the substrate and the active optical elements. The method incorporates the steps of grinding alignment pins into metallic pads and grinding optical fibers in one pass and then aligning the active optical device and the optical fibers by using the surface tension of conductive adhesive liquid. The fibers are then bonded.