摘要:
In a semiconductor device including a stack structure having heterojunction units formed by alternately stacking GaN (gallium nitride) films and barrier films which are different in forbidden band width, a first electrode formed in a Schottky barrier contact with one sidewall of the stack structure, and a second electrode formed in contact with the other sidewall, an oxide film is interposed between the first electrode and the barrier films. Therefore, the reverse leakage current is prevented from flowing through defects remaining in the barrier films due to processing of the barrier films, so that a reverse leakage current of a Schottky barrier diode is reduced.
摘要:
In a semiconductor device including a stack structure having heterojunction units formed by alternately stacking GaN (gallium nitride) films and barrier films which are different in forbidden band width, a first electrode formed in a Schottky barrier contact with one sidewall of the stack structure, and a second electrode formed in contact with the other sidewall, an oxide film is interposed between the first electrode and the barrier films. Therefore, the reverse leakage current is prevented from flowing through defects remaining in the barrier films due to processing of the barrier films, so that a reverse leakage current of a Schottky barrier diode is reduced.
摘要:
A nitride semiconductor laser which features low resistance and high reliability. A buried layer is formed by selective growth and the shape of a p-type cladding layer is inverted trapezoidal so that the resistance of the p-type cladding layer and that of a p-type contact layer are decreased. For long-term reliability of the laser, the buried layer is a high-resistance semi-insulating layer which suppresses increase in leak current.
摘要:
A nitride semiconductor laser which features low resistance and high reliability. A buried layer is formed by selective growth and the shape of a p-type cladding layer is inverted trapezoidal so that the resistance of the p-type cladding layer and that of a p-type contact layer are decreased. For long-term reliability of the laser, the buried layer is a high-resistance semi-insulating layer which suppresses increase in leak current.
摘要:
In an InGaN-based nitride semiconductor optical device having a long wavelength (440 nm or more) equal to or more than that of blue, the increase of a wavelength is realized while suppressing In (Indium) segregation and deterioration of crystallinity. In the manufacture of an InGaN-based nitride semiconductor optical device having an InGaN-based quantum well active layer including an InGaN well layer and an InGaN barrier layer, a step of growing the InGaN barrier layer includes: a first step of adding hydrogen at 1% or more to a gas atmosphere composed of nitrogen and ammonia and growing a GaN layer in the gas atmosphere; and a second step of growing the InGaN barrier layer in a gas atmosphere composed of nitrogen and ammonia.
摘要:
A nitride semiconductor light emitting device operating on a low voltage and excelling in reliability and performance is to be provided. It has a multi-layered p-type clad layer of at least two layers of a first p-type clad layer and a second p-type clad layer, wherein the second p-type clad layer contains a p-type impurity in a higher concentration the first p-type clad layer does, has a thickness ranging from 2 to 20 nm, and is formed of AlYGa1-YN whose Al content has a relationship of X≦Y to the first p-type clad layer doped with a p-type impurity containing at least an AlXGa1-XN (0
摘要翻译:将提供一种在低电压下操作并具有优异的可靠性和性能的氮化物半导体发光器件。 它具有第一p型覆盖层和第二p型覆盖层的至少两层的多层p型覆盖层,其中第二p型覆盖层含有较高的p型杂质 浓度为第一p型覆盖层的厚度范围为2至20nm,并且Al Al Ga 1-Y N由Al Y Ga 1-Y N形成,其Al含量与掺杂p型覆层的第一p型覆盖层具有X& 至少含有Al x Ga 1-x N(0
摘要:
A nitride semiconductor light emitting device operating on a low voltage and excelling in reliability and performance is to be provided. It has a multi-layered p-type clad layer of at least two layers of a first p-type clad layer and a second p-type clad layer, wherein the second p-type clad layer contains a p-type impurity in a higher concentration the first p-type clad layer does, has a thickness ranging from 2 to 20 nm, and is formed of AlYGa1-YN whose Al content has a relationship of X≦Y to the first p-type clad layer doped with a p-type impurity containing at least an AlxGa1-XN (0
摘要:
An integrated optoelectronic device includes optical waveguide elements containing InGaAlAs as a principal component, formed on an InP substrate and connected in an end-to-end fashion by butt jointing. AnInGaAs Player is formed on the InP substrate to suppress the mass transport of InP during the fabrication of the integrated optoelectronic device. The InGaAsP layer is formed before the InP substrate is heated at a crystal growth temperature on the order of 700° C. to form the InGaAlAs optical waveguide element.
摘要:
An InGaAlAs-based buried type laser is expected to improve properties of the device, but generates defects at a re-growth interface and is difficult to realize a long-term reliability necessary for optical communication, due to inclusion of Al in an active layer. A semiconductor optical device and an optical module including a package substrate and a semiconductor optical device mounted on the package substrate are provided, whereby there are realized the improvement of device properties and the long-term reliability through the use of an Al composition ratio-reduced tensile strained quantum well layer.
摘要:
The invention provides a manufacturing method of a laser diode having buried grown layer with less crystal defects and with low consumption power and having high reliability in a buried heterostructure laser diode using an InGaAlAs type material as an active layer, by preventing the inhibition of burying and regrowing of the active layer caused by oxidation of Al contained in the active layer. A manufacturing method of a semiconductor laser diode and the active layer comprises a material at least containing Al and having a buried hetero-cross sectional structure, formation of the buried heterostructure, comprising the steps of fabricating the active layer into a stripe shape or mesa shape by etching including at least wet etching, cleaning the stripe-shape sidewall of the core layer with a gas containing chlorine or other halogen element in a crystal growing apparatus and burying the active layer in the semiconductor.