Light emitting device and method of manufacturing same
AssigneeNichia Corporation
InventorsKenji OZEKI, Masami NISHI
Life of this patent
Estimating the term…
Abstract
A light emitting device includes a light emitting element, a light-transmissive member, a covering member, and a base member. The light-transmissive member has a flange on a lateral surface thereof in such a manner as to continue from a periphery of an upper surface to a periphery of a lower surface of the light-transmissive member and to be positioned outside the upper surface of the light-transmissive member and an upper surface of the light emitting element in plan view. The flange has a thin portion at an inner side than the outer edge side of the flange. The thin portion has a thickness smaller than a thickness of the outer edge side of the flange.
Claims16
A light emitting device comprising:
- a light emitting element having an upper surface serving as a light extraction surface;
- a light-transmissive member which is joined to the upper surface of the light emitting element, has a lower surface larger than the upper surface of the light emitting element and an upper surface smaller than the lower surface, and allows light emitted from the light emitting element to enter from the lower surface and exit from the upper surface of the light-transmissive member;
- and
- a covering member covering a lateral surface of the light-transmissive member such that the upper surface of the light-transmissive member is exposed from the covering member, wherein
- the light-transmissive member has a flange on at least a part of the lateral surface thereof in such a manner as to continue from a periphery of the upper surface to a periphery of the lower surface of the light-transmissive member and to be positioned outside the upper surface of the light-transmissive member and the upper surface of the light emitting element in plan view,
- the flange has a thin portion at an inner side than the outer edge side of the flange, and
- the thin portion has a thickness smaller than a thickness of the outer edge side of the flange.
A method of manufacturing a light emitting device comprising:
- forming a groove portion on an upper surface of a light-transmissive substrate having a plate shape;
- forming a light-transmissive member by dividing the light-transmissive substrate at a position including the groove portion, such that the light-transmissive member has a lower surface larger than an upper surface serving as a light extraction surface of a light emitting element, and an upper surface smaller than the lower surface, and having a flange which continues from a periphery of the upper surface to a periphery of the lower surface of the light-transmissive member, the flange being positioned outside the upper surface of the light-transmissive member and the upper surface of the light emitting element in plan view;
- and
- bonding the lower surface of the light-transmissive member and the upper surface of the light emitting element to each other, wherein
- the step of forming the light-transmissive member includes forming a thin portion at an inner side than an outer edge side of the flange, and the thin portion has a thickness smaller than a thickness of the outer edge side of the flange.
Dependencies are inferred from the claim text.