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US 12,181,723 B2Granted
Optical waveguide package and light-emitting device
AssigneeKYOCERA Corporation
InventorsYoshiaki Itakura, Yasuhiro Fujimoto, Hiroki Ito
Life of this patent
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Abstract
An optical waveguide package includes a substrate, an optical waveguide layer located on an upper surface of the substrate and including a cladding and a core in the cladding, a lid, and a metal member. The cladding includes a first surface facing the substrate, a second surface opposite to the first surface, and an element-receiving area being open in the second surface. The lid covers the element-receiving area. The metal member surrounds the element-receiving area between the cladding and the lid.
Claims16
An optical waveguide package, comprising:
- a substrate;
- a cladding on the substrate, the cladding including a first surface facing the substrate, a second surface opposite to the first surface, an element-receiving area being open in the second surface, and a protrusion protruding from the second surface;
- a core in the cladding and extending from the element-receiving area, wherein the protrusion is above the core;
- a lid covering the element-receiving area;
- a bond member surrounding the element-receiving area between the cladding and the lid;
- and
- an external wiring member electrically connecting an element in the element-receiving area to an external circuit,
- wherein
- the external wiring member is not located between the lid and the cladding,
- the lid faces the second surface and the protrusion, and
- the bond member is located above the second surface and the protrusion.
8 more elements
A light-emitting device, comprising:
- a substrate;
- a cladding on the substrate, the cladding including a first surface facing the substrate, a second surface opposite to the first surface, an element-receiving area being open in the second surface, and a protrusion;
- a core in the cladding and extending from the element-receiving area, wherein the protrusion is above the core;
- a lid having a recess and covering the element-receiving area;
- a light-emitting element in the element-receiving area;
- a bond member surrounding the element-receiving area between the cladding and the lid and located above the protrusion;
- and
- an external wiring member electrically connecting the light-emitting element to an external circuit;
- and
- a lens on an optical path of light to be emitted from the core, wherein
- the external wiring member is not located between the lid and the cladding, and
- the light-emitting element extends from the element-receiving area into the recess.
9 more elements
Dependencies are inferred from the claim text.