摘要:
According to one embodiment, a semiconductor light emitting device includes a first semiconductor layer of a first conductivity type, a light emitting layer, a second semiconductor layer of a second conductivity type, a first electrode layer and a second electrode layer. The first semiconductor layer includes a first portion and a second portion thicker than the first portion. The second portion includes a side surface rising from a major surface of the first portion. The light emitting layer is provided on the second portion. The second semiconductor layer is provided on the light emitting layer. The first electrode layer is provided along the major surface of the first portion and is in contact with the side surface of the second portion. The second electrode layer is provided on the second semiconductor layer.
摘要:
A semiconductor light emitting device comprises: a substrate; a semiconductor stacked structure; a first electrode; a second electrode; and a reflective film. The substrate has a top face and a rear face electrode forming portion opposed thereto, and is translucent to light in a first wavelength band. The rear face electrode forming portion is surrounded by a rough surface. The semiconductor stacked structure is provided on the top face of the substrate and includes an active layer that emits light in the first wavelength band. The first electrode is provided on the semiconductor stacked structure, and the second electrode is provided on the rear face electrode forming portion. The reflective film is coated on at least a portion of the rough surface.
摘要:
A semiconductor light emitting device comprises: a substrate; a semiconductor stacked structure; a first electrode; a second electrode; and a reflective film. The substrate has a top face and a rear face electrode forming portion opposed thereto, and is translucent to light in a first wavelength band. The rear face electrode forming portion is surrounded by a rough surface. The semiconductor stacked structure is provided on the top face of the substrate and includes an active layer that emits light in the first wavelength band. The first electrode is provided on the semiconductor stacked structure, and the second electrode is provided on the rear face electrode forming portion. The reflective film is coated on at least a portion of the rough surface.
摘要:
A substrate, a laminated structure formed above the substrate and including a first cladding layer, an active layer, and a second cladding layer each containing a compound semiconductor, a current confinement layer containing a compound semiconductor, which is formed on the second cladding layer so as to have an opening, and a ridge portion containing a compound semiconductor, covering the opening of the current confinement layer, and electrically connecting to the second cladding layer, are provided. At least an edge portion of the current confinement layer facing the opening is located under the ridge portion.
摘要:
According to one embodiment, a semiconductor light emitting device having a base, a mounting material and a chip of a semiconductor light emitting element is provided. The mounting material is provided on the base. The chip of the semiconductor light emitting element is fixed onto the base via the mounting material. The chip of the semiconductor light emitting element is provided with a sapphire substrate, an active region, a light shielding portion and anode and cathode electrodes for supplying an electric power to the active region. The active region is provided on the sapphire substrate and has a light emitting layer for emitting light by supplying electric power. The light shielding portion is formed on the sapphire substrate on the side of the mounting material. The light shielding portion prevents the mounting material from being irradiated with the light produced in the light emitting layer.
摘要:
A semiconductor light emitting device comprises: a substrate; a semiconductor stacked structure; a first electrode; a second electrode; and a reflective film. The substrate has a top face and a rear face electrode forming portion opposed thereto, and is translucent to light in a first wavelength band. The rear face electrode forming portion is surrounded by a rough surface. The semiconductor stacked structure is provided on the top face of the substrate and includes an active layer that emits light in the first wavelength band. The first electrode is provided on the semiconductor stacked structure, and the second electrode is provided on the rear face electrode forming portion. The reflective film is coated on at least a portion of the rough surface.
摘要:
In a semiconductor device according to the present invention, a diffusion layer is formed on a silicon substrate, and a Silicon oxide film is deposited thereon. A hole communicating with the diffusion layer is formed in the silicon oxide film. A silver bromide emulsion is applied to the silicon oxide film having the hole by the spin coat technique. The silver bromide emulsion is irradiated with light through a mask to leave only that portion of the emulsion which is exposed by the light. By doing so, a metal wiring is formed integrally with a via hole, and thus decreased in resistance and suitable for forming the via hole. Consequently, a semiconductor device having such a wiring can be obtained easily, inexpensively.
摘要:
According to one embodiment, a semiconductor light emitting device having a base, a mounting material and a chip of a semiconductor light emitting element is provided. The mounting material is provided on the base. The chip of the semiconductor light emitting element is fixed onto the base via the mounting material. The chip of the semiconductor light emitting element is provided with a sapphire substrate, an active region, a light shielding portion and anode and cathode electrodes for supplying an electric power to the active region. The active region is provided on the sapphire substrate and has a light emitting layer for emitting light by supplying electric power. The light shielding portion is formed on the sapphire substrate on the side of the mounting material. The light shielding portion prevents the mounting material from being irradiated with the light produced in the light emitting layer.
摘要:
A semiconductor light emitting device comprises: a semiconductor multilayer structure; and an aluminum nitride layer. The semiconductor multilayer structure includes a light emitting layer that emits a light. The aluminum nitride layer is provided on a surface of the semiconductor multilayer structure. The aluminum nitride layer has asperities with an average pitch of not more than half an in-medium wavelength of the light in aluminum nitride. Alternatively, the semiconductor light emitting device may have asperities composed of a plurality of protrusions including the aluminum nitride layer and a plurality of depressions intruding into the semiconductor multilayer structure.