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Class 438/37 - Graded composition


Subclass of Class 438 - Semiconductor device manufacturing: process
Definition: Process wherein the chemical composition of a semiconductor
No. of applications: 29
Last issue date: 03/22/2012


Application No.Application TitleIssue Date
20120068151Light emitting and lasing semiconductor methods and devices
The invention is applicable for use in conjunction with a light-emitting semiconductor structure that includes a semiconductor active region of a first conductivity type containing a quantum size region and having a first surface adjacent a semiconductor input region of...
03/22/2012
20120009709SILICON LIGHT EMITTING DEVICE UTILISING REACH-THROUGH EFFECTS
A light emitting device comprises a body of an indirect bandgap semiconductor material. A junction region is formed between a first region in the body of a first doping kind and a second region of the body of a second doping kind of first concentration. A third region o...
01/12/2012
20110318857Nitride Semiconductor Light Emitting Device and Fabrication Method Thereof
Provided is a nitride semiconductor light emitting device including: a substrate; a first buffer layer formed above the substrate; an indium-containing second buffer layer formed above the first buffer layer; an indium-containing third buffer layer formed above the seco...
12/29/2011
20110312106METHOD FOR PREPARING A LIGHT-EMITTING DEVICE USING GAS CLUSTER ION BEAM PROCESSING
A method of manufacturing semiconductor-based light-emitting devices, such as light-emitting diodes (LEDs), is described. The method comprises irradiating an interface region with a gas cluster ion beam (GCIB) to improve the interface region between a light-emitting dev...
12/22/2011
20110281387METHOD OF MANUFACTURING A LASER GAIN MEDIUM HAVING A SPATIALLY VARIABLE GAIN PROFILE
Method of manufacturing a laser medium with a material having a surface and a dopant in the material distributed whereby the material has a spatially variant optical flux density profile uses tailored non-uniform gain profiles within a Yb:YAG laser component (rod, slab,...
11/17/2011
20110253975Semiconductor Material Doping
A solution for designing and/or fabricating a structure including a quantum well and an adjacent barrier is provided. A target band discontinuity between the quantum well and the adjacent barrier is selected to coincide with an activation energy of a dopant for the quan...
10/20/2011
20110210353LIGHT EMITTING DIODES WITH N-POLARITY AND ASSOCIATED METHODS OF MANUFACTURING
Light emitting diodes (“LEDs”) with N-polarity and associated methods of manufacturing are disclosed herein. In one embodiment, a method for forming a light emitting diode on a substrate having a substrate material includes forming a nitrogen-rich environment at lea...
09/01/2011
20110147790Light Emitting Diode and Fabricating Method thereof
A light emitting diode and a fabricating method thereof are provided. The method including the steps of sequentially forming a first-type semiconductor layer, a light emitting layer and a second-type semiconductor layer with a first region and a second region on a subst...
06/23/2011
20110049541SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING SAME
A semiconductor light emitting device, includes: a stacked structural unit including a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type, and a light emitting layer provided therebetween; and an electrode ...
03/03/2011
20110049542AlxGa(1-x)As Substrate, Epitaxial Wafer for Infrared LEDs, Infrared LED, Method of Manufacturing AlxGa(1-x)As Substrate, Method of Manufacturing Epitaxial Wafer for Infrared LEDs, and Method of Manufacturing Infrared LEDs
The present invention makes available AlxGa(1-x)As (0≦x≦1) substrates, epitaxial wafers for infrared LEDs, infrared LEDs, methods of manufacturing AlxGa(1-x)As substrates, methods of manufacturing epitaxial wafers for infr...
03/03/2011
20100230665DEVICE, METHOD AND SYSTEM FOR LIGHTING
It is presented an organic LED device 101 with, when in use, a predetermined pattern on its light emitting parts. The organic LED device 101 comprises an anode 105, a cathode 103, and an organic light emitting layer 107. The organic li...
09/16/2010
20100219445GROUP III NITRIDE SEMICONDUCTOR LIGHT-EMITTING DEVICE, METHOD FOR MANUFACTURING THE SAME, AND LAMP
A buffer layer 12 composed of at least a Group III nitride compound is laminated on a substrate 11 composed of sapphire, and an n-type semiconductor layer 14, a light-emitting layer 15, and a p-type semiconductor layer 16 are laminated...
09/02/2010
20100219418DIAMOND LED DEVICES AND ASSOCIATED METHODS
LED devices incorporating diamond materials and methods for making such devices are provided. One such method may include forming epitaxially a substantially single crystal SiC layer on a substantially single crystal Si wafer, forming epitaxially a substantially single ...
09/02/2010
20100001313LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME
A light emitting device and a method of manufacturing the same are provided. The light emitting device comprises a first conductive type lower semiconductor layer, a current diffusion layer, a first conductive type upper semiconductor layer, an active layer, and a secon...
01/07/2010
20100003777Quantum Photonic Imagers and Methods of Fabrication Thereof
Emissive quantum photonic imagers comprised of a spatial array of digitally addressable multicolor pixels. Each pixel is a vertical stack of multiple semiconductor laser diodes, each of which can generate laser light of a different color. Within each multicolor pixel, t...
01/07/2010
20090315067SEMICONDUCTOR DEVICE FABRICATION METHOD AND STRUCTURE THEREOF
A semiconductor device fabrication method is disclosed. A buffer layer is provided and a first semiconductor layer is formed on the buffer layer. Next, a first intermediate layer is formed on the first semiconductor layer by dopant with high concentration during an epit...
12/24/2009
20090250693Thin film transistor, display device, including the same, and associated methods
A thin film transistor (TFT), including a substrate, a gate electrode on the substrate, an oxide semiconductor layer including a channel region, a source region, and a drain region, a gate insulating layer between the gate electrode and the oxide semiconductor layer, an...
10/08/2009
20090166606Nitride Semiconductor Light Emitting Device and Fabrication Method Thereof
Provided is a nitride semiconductor light emitting device including: a first nitride semiconductor layer; an active layer formed above the first nitride semiconductor layer; and a delta doped second nitride semiconductor layer formed above the active layer. According to...
07/02/2009
20090086784Quantum well intermixing
Embodiments of a method of quantum well intermixing (QWI) comprise providing a wafer comprising upper and lower epitaxial layers, which each include barrier layers, and a quantum well layer disposed between the upper and lower epitaxial layers, applying at least one sac...
04/02/2009
20080315244LIGHT EMITTING DIODE AND METHOD FOR MANUFACTURING THE SAME
Provided are a light emitting diode (LED) and a method for manufacturing the same. The LED includes an n-type semiconductor layer, an active layer, and a p-type semiconductor layer. The active layer includes a well layer and a barrier layer that are alternately laminate...
12/25/2008
20080142781Nitride Semiconductor Light Emitting Device and Fabrication Method Thereof
Provided is a nitride semiconductor light emitting device including: a first nitride semiconductor layer; an active layer formed above the first nitride semiconductor layer; and a delta doped second nitride semiconductor layer formed above the active layer. According to...
06/19/2008
20080087876Method for Fabricating Lateral Semiconductor Device
A lateral junction semiconductor device and method for fabricating the same comprising the steps of taking a semiconductor structure having a stack formed by a plurality of layers of semiconductor material arranged in a series of substantially parallel planes, the semic...
04/17/2008
20080081390Nitride-based light emitting heterostructure
An improved nitride-based light emitting heterostructure is provided. The nitride-based light emitting heterostructure includes an electron supply layer and a hole supply layer with a light generating structure disposed there between. The light generating structure incl...
04/03/2008
20080054279Phosphor Position in Light Emitting Diodes
A method of forming an LED lamp with a desired distribution of phosphor is disclosed. The method includes the steps of mixing a plurality of phosphor particles in an uncured polymer resin for which the viscosity can be controlled in response to temperature to form a sub...
03/06/2008
20070029553Methods of fabricating strained semiconductor-on-insulator field-effect transistors and related devices
A method of fabricating a semiconductor device includes forming a strained first semiconductor layer on an insulating layer that is between second semiconductor layers. The strained first semiconductor layer may be epitaxially grown from the second semiconductor layers ...
02/08/2007
20070024185ORGANIC EL DISPLAY
An organic EL element includes a pair of electrodes and an emitting layer interposed therebetween. The emitting layer is made of a mixture containing a host material and a dopant material. In the emitting layer, a concentration profile of the dopant material along a thi...
02/01/2007
20060281327SEMICONDUCTOR LASER ELEMENT AND METHOD OF FABRICATION THEREOF
A semiconductor laser element having an advantageous vertical light confinement efficiency, a low threshold current and a low element resistance is provided. The semiconductor laser element has a substrate and a stacked structure formed thereon, where the stacked struct...
12/14/2006
20060017061Nitride semiconductor light emitting device
A nitride semiconductor light emitting device comprising an n-side nitride semiconductor layer and a p-side nitride semiconductor layer formed on a substrate, with a light transmitting electrode 10 formed on the p-side nitride semiconductor layer, and the p-side ...
01/26/2006
20050106771Group III-V compound semiconductor and group III-V compound semiconductor device using the same
An AlGaInP layer is formed on a substrate made of GaAs, and an AlGaAs layer is formed on the AlGaInP layer via a buffer layer therebetween. The buffer layer has a thickness of about 1.1 nm and is made of AlGaInP whose Ga content is smaller than that of the AlGaInP layer...
05/19/2005
 
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