SUBSTRATE FOR LIGHT-EMITTING ELEMENT PACKAGE, AND LIGHT-EMITTING ELEMENT PACKAGE

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive and small-sized substrate for a light-emitting element package capable of satisfactorily heat-radiating from the light-emitting element as a substrate for packaging the light-emitting element, and to provide a light-emitting element package using the same.

SOLUTION: The substrate for the light-emitting element package includes: an insulating layer 1 composed of a resin 1a including thermally-conductive fillers 1b, 1c; a metal thick part 2 formed under a mounting position of the light-emitting element 4; and a surface electrode part 3 formed on the mounting side surface of the insulating layer 1 differently from the metal thick part 2.

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