Patent ID: 8340483
Filing Date: 2012-12-25
Classification: G02B,H01L

Abstract:
1. An optical interconnection structure comprising: a silicon substrate on which a first groove for a lens is formed to have a curvature radius on the upper surface thereof; a silica layer that is formed on the silicon substrate including the first groove for a lens, the silica layer including a first curved portion retaining the shape of the first groove for a lens, the silica layer including a first curved portion retaining the shape of the first groove for a lens; a first via hole formed on a lower surface of the silicon substrate to expose the first curved portion; an optical waveguide comprising a lower cladding layer formed on the upper surface of the silica layer, the lower cladding layer having a depth sufficient to fill the first curved portion; a core layer formed on the upper surface of the lower cladding layer; and an upper cladding layer formed on the upper surface of the core layer.