LIGHT-EMITTING DEVICE AND LUMINAIRE HAVING THE SAME

• Main Authors: NADA TOMOKAZU, HATA TOSHIO, EGATANI MAKOTO, ISHIZAKI SHINYA
• Format: Patent
• Language: English; Japanese
• Published: 19.11.2015
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; SEMICONDUCTOR DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

PROBLEM TO BE SOLVED: To provide a light-emitting device in which electrical connection of a light-emitting element and an electrode can be ensured with no practical problem by both a soldering method and a connection method using a connector, and to provide a luminaire having the light-emitting device.SOLUTION: A light-emitting device 1 has a plurality of LED chips 11, electrode lands 17 (17a, 17k) for soldering connected electrically therewith, and electrode lands 19 (19a, 19k) for connector connection on a ceramic substrate 3. The electrode lands 17 for soldering are formed of a material containing a first conductive material having a solder diffusion prevention function, and the electrode lands 19 for connector connection are formed of a material containing a second conductive material having an oxidation prevention function. 【課題】 はんだ付け及びコネクタの両方の接続方法によって、発光素子と電極間の電気的接続を実用上問題なく確保できる発光装置及びこれを備えた照明装置を提供する。【解決手段】 本発明の発光装置１は、セラミック基板３上に複数のＬＥＤチップ１１とこれに対して電気的に接続されたはんだ付け用電極ランド１７（１７ａ，１７ｋ）及びコネクタ接続用電極ランド１９（１９ａ，１９ｋ）を有する。はんだ付け用電極ランド１７は、はんだ拡散防止機能を有する第１導電性材料を含んで形成され、コネクタ接続用電極ランド１９は、酸化防止機能を有する第２導電性材料を含んで形成されている。【選択図】 図１