SEMICONDUCTOR LIGHT-EMITTING ELEMENT

PROBLEM TO BE SOLVED: To provide a semiconductor light-emitting element capable of improving reliability.SOLUTION: According to an embodiment, a semiconductor light-emitting element comprises a substrate, first to third semiconductor layers, first and second electrodes, a first metal layer, and an insulating layer. The second semiconductor layer is provided between the substrate and a part of the first semiconductor layer. The third semiconductor layer is provided between the second semiconductor layer and the part. The first electrode is provided between the substrate and another part of the first semiconductor layer, and electrically connected with the first semiconductor layer. The second electrode is provided between the substrate and the second semiconductor layer, and electrically connected with the second semiconductor layer. The first metal layer is provided between the substrate and the first electrode and between the substrate and the second electrode, and contacted with one of the first electrode and the second electrode, and contains titanium. The insulating layer is provided between the other of the first electrode and the second electrode and the first metal layer, and insulates between the first semiconductor layer and the first metal layer and between the other of the first electrode and the second electrode and the first metal layer.SELECTED DRAWING: Figure 1 【課題】信頼性を向上できる半導体発光素子を提供する。【解決手段】実施形態によれば、基体と、第１〜第３半導体層と、第１、第２電極と、第１金属層と、絶縁層と、を含む。第２半導体層は、基体と第１半導体層の一部との間に設けられる。第３半導体層は、第２半導体層と一部との間に設けられる。第１電極は、基体と第１半導体層の別の一部との間に設けられ第１半導体層と電気的に接続される。第２電極は、基体と第２半導体層との間に設けられ第２半導体層と電気的に接続される。第１金属層は、基体と第１電極との間、及び、基体と第２電極との間に設けられ、第１電極及び第２電極の一方と接し、チタンを含む。絶縁層は、第１電極及び第２電極の他方と第１金属層との間に設けられ、第１半導体層と第１金属層との間、及び、第１電極及び第２電極の他方と第１金属層との間を絶縁する。【選択図】図１