摘要:
An organic light emitting device has a layer structure comprising: a first electrode layer (20); a second electrode layer (40) parallel to the first electrode layer (20); and, an electrically conductive and light transmissive layer (70) parallel to the second electrode layer. An electrically insulating layer (30) is disposed between the first and second electrode layers. A layer of organic material (50) is disposed between the second electrode layer and the conductive layer. An aperture (60) in the organic layer provides an electrical connection path between the conductive layer and one of the first and second electrode layers.
摘要:
A compound semiconductor device is provided that includes a substrate and an active region disposed above the substrate. The active region includes at least two different pseudomorphic layers, the first layer having the form InxGa1−xPyAszSb1−y−z, and the second layer having the form InqGa1−qPrAssSb1−r−s. The first layer includes at least In, Ga, and As, and the second layer includes at least Ga, As, and Sb. It is preferable for the substrate to be GaAs or AlpGa1−pAs (0
摘要翻译:提供了一种复合半导体器件,其包括衬底和设置在衬底上方的有源区。 有源区包括至少两个不同的假晶层,第一层具有In x Ga 1-x P y As z Sb 1-y-z形式,第二层具有InqGa1-qPrAssSb1-r-s形式。 第一层至少包括In,Ga和As,第二层至少包括Ga,As和Sb。 衬底优选为GaAs或AlpGa1-pAs(0
摘要:
Performance of an electronic device is highly improved by epitaxially growing a perovskite-type oxide thin film on an inorganic amorphous layer or an organic solid layer in a desired direction; and furthermore, a high performance electronic device is provided by incorporating the electronic device into an integrated circuit, wherein oxide thin layers are formed on the inorganic amorphous layer or the organic solid layer, and the perovskite-type oxide thin film is grown epitaxially on the oxide layer, the oxide thin layers being able to be at least one of strontium oxide, magnesium oxide, cerium oxide, zirconium oxide, yttrium stabilized zirconium oxide, and strontium titanate; and as the perovskite-type oxide thin film, the perovskite-type oxide thin film being a piezoelectric or ferroelectric material, for example, is used.
摘要:
The present invention discloses a light-emitting device (LED) with a textured interface formed by utilizing holographic lithography. Two coherent light beams are overlaid to cause constructive and destructive interference and thereby periodical alternative bright and dark lines are formed. A wafer coated with a photoresist material is exposed under the interference lines. After a developing step, a photoresist pattern with textured surface is formed on the wafer. Thereafter, the textured photoresist pattern is transferred to the wafer by etching process and result in a desired light-emitting device with a textured interface.
摘要:
The optical semiconductor apparatus is provided with a surface light-emitting device and a surface light-receiving device, and includes an active layer, a first spacer layer, and a first semiconductor multi-layer mirror. The active layer, the first spacer layer, and the first semiconductor multi-layer mirror are layered in a layering direction. A first region of the surface light-emitting device and a second region of the surface light-receiving device are arranged in a direction approximately perpendicular to the layering direction, the first region is electrically separated from the second region substantially, and the first spacer layer in the first region and the first spacer layer in the second region are subjected to different oxidization including non-oxidization, respectively, such that resonators composed of the first semiconductor multi-layer mirror and the first spacer layer in the surface light-emitting device and the surface light-receiving device have different wavelength dependencies of reflectivity, respectively.
摘要:
The semiconductor laser of this invention includes an active layer formed in a c-axis direction, wherein the active layer is made of a hexagonal-system compound semiconductor, and anisotropic strain is generated in a c plane of the active layer.
摘要:
A nitride semiconductor device comprising an n-type nitride semiconductor layer, an active layer having a quantum well structure including a well layer of a nitride semiconductor containing In, the p-type nitride semiconductor layer having a p-type contact layer, a p-type high concentration doped layer interposed between said active layer and said p-type contact layer and a p-type multi-film layer interposed between said active layer and said p-type high concentration doped layer.
摘要:
A light emitting tunnel diode oscillator comprising a body of single crystalline material having a first portion n-doped and a second portion p-doped in such a way that the resulting p-n junction has the low voltage conductance characteristics of a tunnel diode as well as characteristics of light emission.The light emitting tunnel diode oscillator comprises a plurality of alternately layered n-doped portions and p-doped portions.a light emitting tunnel diode oscillator wherein said first n-doped portion and said second p-doped portion are formed to have a thickness corresponding to an integral number of desired wave lengths.
摘要:
Vertical transistor structure with an epitaxially applied layer of the second conduction type on a semiconductor substrate of the first conduction type, in which a tray is formed by insulating walls of the first conduction type extending into the semiconductor substrate. A first highly doped buried layer of the second conduction type in which a second buried layer of the first conduction type extending into the epitaxial layer of the first conduction type is embedded insulated from the semiconductor substrate. Three doped zones of which one, of the second conduction type, is provided for the base terminal and one of the first conduction type for the emitter and collector terminal, and a zone connecting the collector terminal zone and the second buried layer, of the first conduction type, where these regions form the collector. The emitter zone and the collector terminal zone are arranged above opposite end regions of the second buried layer.
摘要:
An arrangement for protecting inductive load switching transistors during overvoltage conditions is disclosed. The arrangement comprises a Zener diode coupled between the collector and base of the switching transistor, where the Zener diode will break down during inductive load-created overvoltage conditions and turn on the transistor. A major portion of the surge current will then flow through the activated transistor. In a particular integrated circuit realization of the arrangement, the Zener diode is formed in the same semiconductor area as the transistor by extending a portion of the base diffusion region downward to contact the buried collector region.