Ceramic-based light emitting diode (LED) devices, components, and methods
First Claim
1. A light emitter device component comprising:
- a substrate comprising a ceramic material layer having a porosity of greater than 0% but less than approximately 15%, the porosity of the substrate being configured to produce a total reflection of visible light of greater than 95%, wherein a top surface of the ceramic material layer is disposed along a single plane, at least a portion of the top surface of the ceramic material layer having been modified by lapping, polishing, and/or another mechanical modification to have a reduced porosity compared to an as-fired ceramic body;
one or more light emitter devices mounted on the portion of the top surface; and
one or more electrical components mounted on the portion of the top surface by one or more non-metallic adhesive layers and electrically coupled to the one or more light emitter devices.
3 Assignments
0 Petitions
Accused Products
Abstract
A light emitter device component containing one or more light emitter devices, such as light emitting diodes (LEDs) or LED chips, can include a body that can be ceramic and have a top surface, one or more light emitting devices mounted directly or indirectly on the top surface, and one or more electrical components mounted on the top surface and electrically coupled to the one or more light emitting devices. At least a portion of the top surface of the body to which the light emitting devices are mounted can be modified to have a reduced porosity compared to an as-fired ceramic body. Such components can result in improved adhesion strength and thermal management of the light emitting devices.
90 Citations
13 Claims
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1. A light emitter device component comprising:
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a substrate comprising a ceramic material layer having a porosity of greater than 0% but less than approximately 15%, the porosity of the substrate being configured to produce a total reflection of visible light of greater than 95%, wherein a top surface of the ceramic material layer is disposed along a single plane, at least a portion of the top surface of the ceramic material layer having been modified by lapping, polishing, and/or another mechanical modification to have a reduced porosity compared to an as-fired ceramic body; one or more light emitter devices mounted on the portion of the top surface; and one or more electrical components mounted on the portion of the top surface by one or more non-metallic adhesive layers and electrically coupled to the one or more light emitter devices. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of forming a light emitter device component having increased brightness, the method comprising:
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mechanically modifying at least a portion of a top surface of a substrate comprising a ceramic material layer having a porosity of greater than 0% but less than approximately 15%, the top surface of the substrate being disposed along a single plane, the porosity of the substrate being configured to produce a total reflection of visible light of greater than 95%, wherein mechanically modifying at least a portion of the substrate comprises lapping, polishing, and/or another mechanical modification such that the top surface of the ceramic material layer has a reduced porosity compared to an as-fired ceramic body; mounting one or more light emitter devices on the portion of the top surface that is modified; providing one or more non-metallic adhesive layers on the top surface of the substrate; and mounting one or more electrical components to the one or more non-metallic adhesive layers. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification