Semiconductor light-emitting device, lighting module and lighting apparatus
AssigneePanasonic Corporation
InventorMasaaki Yuri
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Abstract
A semiconductor light-emitting device includes: a support; a semiconductor light-emitting element bonded to the support and comprising a first electrode, a second electrode, and a semiconductor layer including at least an active layer, at least one of the first and second electrodes overlying the semiconductor layer; and a wiring metal formed to extend from above a portion of an upper surface of the support not underlying the semiconductor light-emitting element to one said electrode overlying the semiconductor layer. The electrode is fed with power through the wiring metal.
Claims22
A semiconductor light-emitting device, comprising:
- a support consisting of a metal material;
- a semiconductor light-emitting element bonded to the support and comprising a first electrode, a second electrode, and a semiconductor layer including at least an active layer and formed from a III-V nitride semiconductor layer, the first electrode being located on a lower surface of the semiconductor light-emitting element, and being electrically connected to the support, and the second electrode being located on an upper surface of the semiconductor light-emitting element opposite to the lower surface;
- and
- a patterned metal film formed to continuously extend over the second electrode overlying the semiconductor layer, a portion of a side surface of the semiconductor layer and a portion of an upper surface of the support not underlying the semiconductor light-emitting element,
- wherein the second electrode is fed with power through the metal film,
- a portion of the metal film formed on the support forms an electrode pad, the electrode pad is electrically connected to the second electrode and the portion of the metal film is electrically insulated from the support by an insulating film,
- the insulating film is formed on the support and on the side surface of the semiconductor layer, and the metal film is formed on the insulating film, and
- the semiconductor layer includes an n-type gallium nitride compound semiconductor layer, which is connected to the second electrode, in the upper side thereof, and a p-type gallium nitride compound semiconductor layer, which is connected to the first electrode, in the lower side thereof.
A lighting apparatus comprising a lighting module having a semiconductor light-emitting device, the semiconductor light-emitting device comprising:
- a support consisting of a metal material;
- a semiconductor light-emitting element bonded to the support and comprising a first electrode, a second electrode, and a semiconductor layer including at least an active layer and formed from a III-V nitride semiconductor layer, the first electrode being located on a lower surface of the semiconductor light-emitting element, and being electrically connected to the support, and the second electrode being located on an upper surface of the semiconductor light-emitting element opposite to the lower surface;
- and
- a patterned metal film formed to continuously extend over the second electrode overlying the semiconductor layer, a portion of a side surface of the semiconductor layer and a portion of an upper surface of the support not underlying the semiconductor light-emitting element,
- wherein the second electrode is fed with power through the metal film, and
- a portion of the metal film formed on the support forms an electrode pad, the electrode pad is electrically connected to the second electrode and the portion of the metal film is electrically insulated from the support by an insulating film,
- the insulating film is formed on the support and on the side surface of the semiconductor layer, and the metal film is formed on the insulating film, and
- the semiconductor layer includes an n-type gallium nitride compound semiconductor layer, which is connected to the second electrode, in the upper side thereof, and a p-type gallium nitride compound semiconductor layer, which is connected to the first electrode in the lower side thereof.
Dependencies are inferred from the claim text.