MOUNTING SUBSTRATE AND LIGHT EMITTING APPARATUS USING MOUNTING SUBSTRATE

摘要

[Problem] To provide a mounting substrate wherein breakdown strength of a metal substrate having an oxide film formed on the surface thereof is ensured, and optical reflectance is improved by preventing a light reflecting material contained in a reflection layer from diffusing to the metal substrate surface. [Solution] This mounting substrate is provided with a metal substrate (21), and a surface layer section (22) formed on the upper surface of the metal substrate (21). The surface layer section (22) is provided with: an oxide film layer (23) formed on the surface of the metal substrate (21); a barrier layer (24) formed on the oxide film layer (23); a reflection layer (25), which is formed on the barrier layer (24), and which contains a light reflecting material; and a protection film layer (26) formed on the reflection layer (25).