| 摘要 |
To provide a substrate for a light-emitting element, being less susceptible to the loss of light supplied from a light emitting element, having high utilization efficiency of light, being excellent in flatness of a mounting surface on which a light-emitting element is to be mounted, and having a low heat resistance, when used for a light-emitting device. A substrate 1 for mounting a light-emitting element, which comprises a substrate main body 2, a reflection layer 6 composed mainly of silver (Ag) or a silver alloy, formed on a part of the substrate main body 2, a first protective layer 7 composed mainly of a sintered product of a glass powder, formed so as to cover the entire surface of the reflection layer 6, and a second protective layer 8 a part which constitutes a mounting portion 10 on which a light-emitting element is to be mounted, formed on the first protective layer 7, wherein the first protective layer 7 contains substantially no alumina filler, and further the second protective layer 8 is made of a sintered product of a glass powder containing a ceramic filler 9. |
