BOARD FOR LIGHT EMITTING DEVICES AND METHOD FOR PRODUCING BOARD FOR LIGHT EMITTING DEVICES

摘要

An electrode pattern (13) that is formed on a ceramic layer (2) in a board for light emitting devices (a circuit board (320)) comprises a first metal layer (5), a second metal layer (7) and an electrode terminal part (10). The thickness of the electrode pattern (13) in portions where the electrode terminal part (10) is not formed is at least 35 μm. Consequently, the thermal resistance is able to be suppressed low.