Abstract:
A package for housing a light-emitting element wherein a via hole for wiring provided so as to pass through an insulating substrate is arranged in such a manner that it is positioned under a reflector frame; a method for manufacturing the above package for housing a light-emitting element which comprises the steps of separately providing a green sheet for the substrate and a green sheet for the frame, causing a paste containing a ceramic powder to be present between the two green sheets to bind them, and subjecting them to degreasing and sintering, to thereby integrate them.
Abstract:
A LIGHT-EMITTING ELEMENT STORING PACKAGE WHICH ENSURES THE EFFICIENT REFLECTION OF LIGHT EMITTED BY A LIGHT-EMITTING ELEMENT BY A REFLECTOR FRAME AND THEREBY IMPROVES THE BRIGHTNESS OF THE EMITTED LIGHT, AND A METHOD OF MANUFACTURING THE SAME ARE PROVIDED. IN A LIGHT-EMITTING ELEMENT STORING PACKAGE INCLUDES: AN INSULATING SUBSTRATE CONSISTING OF A CERAMIC BOARD, A REFLECTOR FRAME COMPOSED OF A CERAMIC MATERIAL, JOINED TO THE UPPER SURFACE OF THE SUBSTRATE ALONG ITS OUTER EDGE AND HAVING AN INNER WALL SURFACE DEFINING A LIGHT-REFLECTING SURFACE , AND A WIRING PATTERN LAYER FORMED ON THE UPPER SURFACE OF THE SUBSTRATE FOR CONNECTION WITH A LIGHT-EMITTING ELEMENT , A LIGHT-EMITTING ELEMENT STORING CONCAVE PORTION , WHICH IS DEFINED BY THE SUBSTRATE AND THE REFLECTOR FRAME , AND IN WHICH THE LIGHT-EMITTING ELEMENT IS MOUNTED ON THE WIRING PATTERN LAYER,THE REFLECTOR FRAME IS COMPOSED OF NITRIDE CERAMICS AND ITS LIGHT- REFLECTING SURFACE IS COMPOSED OF WHITE CERAMICS.
Abstract:
A CERAMIC SUBSTRATE (110) FOR MOUNTING A LIGHT EMITTING ELEMENT (200) IS PROVIDED COMPRISING A CERAMIC SUBSTRATE HAVING: A PLACEMENT SURFACE FOR PLACING A LIGHT EMITTING ELEMENT HAVING AN ELECTRODE (210); AND AN ELECTRODE (113) ELECTRICALLY-CONNECTED WITH THE ELECTRODE OF THE LIGHT EMITTING ELEMENT, WHEREIN THE CERAMIC SUBSTRATE COMPRISES A SUBSTRATE BODY (111) CONSISTING OF A NITRIDE CERAMICS; AND A COAT LAYER (112) COATING AT LEAST A PART OF A SURFACE OF THE SUBSTRATE BODY AND CONSISTING OF A CERAMICS DIFFERENT FROM THE NITRIDE CERAMICS FORMING THE SUBSTRATE BODY; AND THE COAT LAYER HAS AN OPTICAL REFLECTANCE OF 50% OR MORE FOR ANY LIGHT HAVING A WAVELENGTH OF FROM 300 TO 800 NM, WHICH CAN INCREASE A LUMINANCE OF THE LIGHT EMITTING ELEMENT BY REFLECTING THE LIGHT EMITTED FROM THE ELEMENT EFFICIENTLY WITH CERTAINTY, AND WHICH HAS A HIGH HEAT RADIATION PROPERTY; AND A MANUFACTURING METHOD THEREFOR.