ALUMINA CERAMIC AND LIGHT EMITTER MOUNTING SUBSTRATE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide alumina ceramic having excellent light reflection characteristics, and a light emitter mounting substrate using the alumina ceramic.SOLUTION: Alumina ceramic dispersedly includes alumina ceramic particles containing a BaAlSiOphase, and alumina ceramic particles not containing a phase having Ba. Therefore, the alumina ceramic has excellent light reflection characteristics. A light emitter mounting substrate 1 uses the alumina ceramic.