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Class 257/17 - With particular barrier dimension


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: Subject matter wherein the superlattice has a specific quantum
No. of patents: 451
Last issue date: 03/20/2012


1                      
NumberTitleIssue Date
8138495Film stress management for MEMS through selective relaxation
An apparatus comprising a microelectromechanical system. The microelectromechanical system includes a crystalline structural element having dislocations therein. For at least about 60 percent of adjacent pairs of the dislocations, direction vectors of the dislocatio...
03/20/2012
8129711Nitride semiconductor light emitting device and fabrication method thereof
The present invention relates to a GaN based nitride based light emitting device improved in Electrostatic Discharge (ESD) tolerance (withstanding property) and a method for fabricating the same including a substrate and a V-shaped distortion structure made of an n-...
03/06/2012
7968868Optical semiconductor device and manufacturing method of the same
A side barrier is provided between columnar dots each constituted by directly stacking respective quantum dots in seven or more layers. Out of respective side barrier layers composing the side barrier, each of the lower side barrier layers (four layers of the underm...
06/28/2011
7786467Three-dimensional nanoscale crossbars
Various embodiments of the present invention include three-dimensional, at least partially nanoscale, electronic circuits and devices in which signals can be routed in three independent directions, and in which electronic components can be fabricated at junctions in...
08/31/2010
7755078Silicon single electron device
A silicon integrated circuit device comprising a near intrinsic silicon substrate in which there are one or more ohmic contact regions. An insulating layer lies above the substrate, and on top of the insulating layer is a lower layer of one or more aluminium gates. ...
07/13/2010
7732806Refractive index variable element
A refractive index variable element has a structure including a solid matrix, and one or more types of quantum dots dispersed in the solid matrix and having discrete occupied and unoccupied electron energy levels. The quantum dots perform a function of generating a ...
06/08/2010
7663139Optical semiconductor device and manufacturing method of the same
A side barrier is provided between columnar dots each constituted by directly stacking respective quantum dots in seven or more layers. Out of respective side barrier layers composing the side barrier, each of the lower side barrier layers (four layers of the underm...
02/16/2010
7605390Programmable photolithographic mask based on semiconductor nano-particle optical modulators
Nano-particles are provided with control circuitry to form a programmable mask. The optical characteristics of the nano-particles change to provide patterned light. Such patterned light can be used for example to expose a photoresist on a semiconductor wafer for pho...
10/20/2009
7554109Quantum dot optoelectronic devices with nanoscale epitaxial lateral overgrowth and methods of manufacture
Optoelectronic devices are provided that incorporate quantum dots as the electroluminescent layer in an inorganic wide-bandgap heterostructure. The quantum dots serve as the optically active component of the device and, in multilayer quantum dot embodiments, facilit...
06/30/2009
7415185Buried-waveguide-type light receiving element and manufacturing method thereof
A buried-waveguide light detecting element includes an n-type cladding layer on a Fe-InP substrate, a waveguide on a portion of the n-type cladding layer, and in which an n-type light guide layer, an i-light guide layer having a refractive index equal to or higher t...
08/19/2008
7411187Ion trap in a semiconductor chip
A micrometer-scale ion trap, fabricated on a monolithic chip using semiconductor micro-electromechanical systems (MEMS) technology. A single 111Cd+ ion is confined, laser cooled, and the heating measured in an integrated radiofrequency trap etched from a doped galli...
08/12/2008
7408186Controlled alignment catalytically grown nanostructures
Systems and methods are described for controlled alignment of catalyticaly grown nanostructures in a large-scale synthesis process. A composition includes an elongated nanostructure including a first segment defining a first axis and a second segment coupled to the ...
08/05/2008
7402832Quantum dots of group IV semiconductor materials
The invention relates to a quantum dot. The quantum dot comprises a core including a semiconductor material Y selected from the group consisting of Si and Ge. The quantum dot also comprises a shell surrounding the core. The quantum dot is substantially defect free s...
07/22/2008
7403256Flat panel display and drive chip thereof
A flat panel display mainly includes a display panel and a plurality of drive IC chips mounted on the display panel by a chip-on-glass method. The display panel includes a plurality of electrode terminals, a plurality of external terminals and a plurality of first c...
07/22/2008
7382017Nano-enabled memory devices and anisotropic charge carrying arrays
Methods and apparatuses for nanoenabled memory devices and anisotropic charge carrying arrays are described. In an aspect, a memory device includes a substrate, a source region of the substrate, and a drain region of the substrate. A population of nanoelements is de...
06/03/2008
7378328Method of fabricating memory device utilizing carbon nanotubes
A fast, reliable, highly integrated memory device formed of a carbon nanotube memory device and a method for forming the same, in which the carbon nanotube memory device includes a substrate, a source electrode, a drain electrode, a carbon nanotube having high elect...
05/27/2008
7372068QWIP with electron launcher for reducing dielectric relaxation effect in low background conditions
A QWIP structure is disclosed that includes a graded emitter barrier and can further be configured with a blocked superlattice miniband. The graded emitter barrier effectively operates to launch dark electrons into the active quantum well region, thereby improving r...
05/13/2008
7366220Tunable laser
A tunable laser includes an optical waveguide alternately including a gain waveguide portion and a wavelength controlling waveguide portion, and a diffraction grating. The diffraction grating includes a gain diffraction grating and a wavelength controlling diffracti...
04/29/2008
7361420Structure, magnetic recording medium, and method of producing the same
To provide a filmy structure of a nanometer size having a phase-separated structure effective for the case where a compound can be formed between two kinds of materials. A structure constituted by a first member containing a compound between an element A except both...
04/22/2008
7362938Optical fiber with quantum dots
Holey optical fibers (e.g. photonic fibers, random-hole fibers) are fabricated with quantum dots disposed in the holes. The quantum dots can provide light amplification and sensing functions, for example. When used for sensing, the dots will experience altered optic...
04/22/2008
7358525Quantum dots of group IV semiconductor materials
The invention relates to a quantum dot. The quantum dot comprises a core including a semiconductor material Y selected from the group consisting of Si and Ge. The quantum dot also comprises a shell surrounding the core. The quantum dot is substantially defect free s...
04/15/2008
7358137Memory devices including barrier layers and methods of manufacturing the same
Memory devices and methods of manufacturing the same are provided. Memory devices may include a substrate, a source region and a drain region and a gate structure. The gate structure may be in contact with the source and drain regions, and may include a barrier laye...
04/15/2008
7358191Method for decreasing sheet resistivity variations of an interconnect metal layer
According to one exemplary embodiment, a method includes a step of forming a number of trenches in a dielectric layer, where the dielectric layer is situated over a wafer. The method further includes forming a metal layer over the dielectric layer and in the trenche...
04/15/2008
7358524Nanowire device and method of fabricating the same
A nanowire device having a structure allowing for formation of p-type and n-type doped portions in a nanowire, and a method of fabricating the same. The nanowire device includes a substrate, a first electrode layer formed on the substrate, a second electrode layer f...
04/15/2008
7358523Method and structure for deep well structures for long wavelength active regions
Subwells are added to quantum wells of light emitting semiconductor structures to shift their emission wavelengths to longer wavelengths. Typical applications of the invention are to InGaAs, InGaAsSb, InP and GaN material systems, for example. ...
04/15/2008
7354780Semiconductor light emitting devices and methods
A method for producing an optical output, including the following steps: providing first and second electrical signals; providing a bipolar light-emitting transistor device that includes collector, base, and emitter regions; providing a collector electrode coupled w...
04/08/2008
7355238Nonvolatile semiconductor memory device having nanoparticles for charge retention
A nonvolatile semiconductor memory device including a source region and a drain region formed on a surface of a semiconductor substrate, a channel-forming region formed so as to connect the source region and the drain region or so as to be sandwiched between the sou...
04/08/2008
7351993Rare earth-oxides, rare earth-nitrides, rare earth-phosphides and ternary alloys with silicon
Atomic layer epitaxy (ALE) is applied to the fabrication of new forms of rare-earth oxides, rare-earth nitrides and rare-earth phosphides. Further, ternary compounds composed of binary (rare-earth oxides, rare-earth nitrides and rare-earth phosphides) mixed with sil...
04/01/2008
7348201Creation of anisotropic strain in semiconductor quantum well
Methods and devices for creating an anisotropic strain in a semiconductor quantum well structure to induce anisotropy thereof are disclosed herein. Initially, a substrate is provided, and a quantum well structure formed upon the substrate. A first crystalline layer ...
03/25/2008
7338858Methods of fabricating nonvolatile memory using a quantum dot
A method of fabricating a nonvolatile memory using quantum dots is disclosed. An example method sequentially forms a first insulation layer and a second insulation layer on a substrate where a predetermined device is formed. The example method also forms a hard mask...
03/04/2008
7335908Nanostructures and methods for manufacturing the same
A resonant tunneling diode, and other one dimensional electronic, photonic structures, and electromechanical MEMS devices, are formed as a heterostructure in a nanowhisker by forming length segments of the whisker with different materials having different band gaps....
02/26/2008
7332211Layered materials including nanoparticles
A composition includes a layer of nanoparticles and a layer of a second material. ...
02/19/2008
7329387Field-effect transistor, sensor using it, and production method thereof
A sensor which has high measuring sensitivity and is excellent in response is provided by forming a porous film in a sensitive section of a field-effect transistor. It comprises a porous body, which is formed on a sensitive section (here, a gate insulating film) of ...
02/12/2008
7320854Radiation sensitive refractive index changing composition, pattern forming method and optical material
There is provided a radiation sensitive refractive index changing composition containing an inorganic oxide particle, a polymerizable compound, a radiation sensitive decomposer and an escapable compound. The radiation sensitive decomposer decomposes upon exposure to...
01/22/2008
7319247Light emitting-diode chip and a method for producing same
An LED chip comprising an electrically conductive and radioparent substrate, in which the epitaxial layer sequence (3) is provided on substantially the full area of its p-side (9) with a reflective, bondable p-contact layer (6). The substrate (
01/15/2008
7316949Integrating n-type and p-type metal gate transistors
At least a p-type and n-type semiconductor device deposited upon a semiconductor wafer containing metal or metal alloy gates. More particularly, a complementary metal-oxide-semiconductor (CMOS) device is formed on a semiconductor wafer having n-type and p-type metal...
01/08/2008
7312524Method for fabricating an ultralow dielectric constant material as an intralevel or interlevel dielectric in a semiconductor device and electronic device made
A method for fabricating a thermally stable ultralow dielectric constant film including Si, C, O and H atoms in a parallel plate chemical vapor deposition process utilizing a plasma enhanced chemical vapor deposition (“PECVD”) process is disclosed. Electronic de...
12/25/2007
7313293Optical power monitoring apparatus, optical power monitoring method, and light receiving device
An optical power monitoring apparatus according to an aspect of the present invention has an input optical waveguide, a light receiver, and an output optical waveguide. The input optical waveguide has a light entrance end and a light exit end. The input optical wave...
12/25/2007
7312137Transistor with shallow germanium implantation region in channel
A transistor and a structure thereof, wherein a very shallow region having a high dopant concentration of germanium is implanted into a channel region of a transistor at a low energy level, forming an amorphous germanium implantation region in a top surface of the w...
12/25/2007
7310363Integrated wavelength tunable single and two-stage all-optical wavelength converter
A semiconductor tunable laser (10) and an interferometer (12) coupled to the tunable laser (10) are monolithically fabricated in a semiconductor heterostructure. The laser also comprises a buried ridge stripe waveguide laser. The interferometer ...
12/18/2007
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