A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LIGHT-EMITTING ELEMENT MOUNTING SUBSTRATE AND LIGHT-EMITTING ELEMENT MODULE
There are provided a light-emitting element mounting substrate which exhibits high reflectivity, and a light-emitting module having high reliability and high luminance. A light-emitting element mounting substrate includes an alumina sintered body containing alumina crystal, zirconia crystal, and grain boundary phase, wherein an intensity ratio It/Im between a peak intensity It of tetragonal zirconia crystal at 2θ ranging from 30° to 30.5° and a peak intensity Im of monoclinic zirconia crystal at 2θ ranging from 28° to 28.5° measured by X-ray diffractometer using Cu-Kα radiation, is less than or equal to 35 excluding 0. Further, a light-emitting element module includes the light-emitting element mounting substrate, and a light-emitting element mounted thereon.
LIGHT-EMITTING ELEMENT MOUNTING SUBSTRATE AND LIGHT-EMITTING ELEMENT MODULE
There are provided a light-emitting element mounting substrate which exhibits high reflectivity, and a light-emitting module having high reliability and high luminance. A light-emitting element mounting substrate includes an alumina sintered body containing alumina crystal, zirconia crystal, and grain boundary phase, wherein an intensity ratio It/Im between a peak intensity It of tetragonal zirconia crystal at 2θ ranging from 30° to 30.5° and a peak intensity Im of monoclinic zirconia crystal at 2θ ranging from 28° to 28.5° measured by X-ray diffractometer using Cu-Kα radiation, is less than or equal to 35 excluding 0. Further, a light-emitting element module includes the light-emitting element mounting substrate, and a light-emitting element mounted thereon.
LIGHT-EMITTING ELEMENT MOUNTING SUBSTRATE AND LIGHT-EMITTING ELEMENT MODULE
TOYODA SATOSHI (author) / TAKENOSHITA HIDEHIRO (author) / FURUTACHI KENICHI (author)
2016-02-11
Patent
Electronic Resource
English
SUBSTRATE FOR MOUNTING LIGHT-EMITTING ELEMENT, AND LIGHT-EMITTING ELEMENT MODULE
| European Patent Office | 2019
Substrate for mounting light-emitting element, and light-emitting element module
| European Patent Office | 2015
| European Patent Office | 2021
| European Patent Office | 2019