Patent application number | Description | Published |
20130035500 | METHOD OF PREPARING FUNCTIONALIZED GRAPHENE - A method of preparing functionalized graphene, comprises treating graphene with an alkali metal in the presence of an electron transfer agent and coordinating solvent, and adding a functionalizing compound. The method further includes quenching unreacted alkali metal by addition of a protic medium, and isolating the functionalized graphene. | 02-07-2013 |
20130048129 | METHOD AND APPARATUS FOR SELECTIVELY CONTROLLING FLUID FLOW - A flow control device and a method of controlling a flow, the flow control device including a flow path for a fluid therethrough and a material at least partially defining the flow path, the material operatively arranged with a surface energy less than that of the fluid for passively impeding an undesirable component of the fluid more than a desirable component of the fluid. | 02-28-2013 |
20130126184 | REACTIVE CHOKE FOR AUTOMATIC WELLBORE FLUID MANAGEMENT AND METHODS OF USING SAME - Fluid actuated chokes comprise an expandable material that expands due to an undesired fluid coming in contact with the choke. The choke includes one or more passageways through which desired fluids from a well flow unimpeded. The choke is disposed in a downhole tool as part of a downhole completion. When one or more undesired fluids enters a production stream flowing through the downhole completion and, thus, the downhole tool, and contacts the choke, the expandable material expands causing fluid flow through the passageway(s) to be restricted and, in some cases, completely closed off. Thus, the choke automatically detects and reacts, i.e., restricts fluid flow through the choke, when contacted by the undesired fluid(s). | 05-23-2013 |
20130146312 | SELF-INHIBITED SWELL PACKER COMPOUND - A downhole sealant includes a composition that includes a polymer; an absorbent material; a primary crosslink network including primary bonds between chains of the polymer; and a secondary crosslink network which is transient. A method of regulating the swell rate of the downhole sealant includes disposing a downhole sealant comprising a polymer and an absorbent material in a borehole; maintaining a primary crosslink network of the polymer; and decomposing a secondary crosslink network of the absorbent material in response to a condition to regulate the swell rate of the downhole sealant. | 06-13-2013 |
20140020910 | In Situ Plasticization of Polymers For Actuation or Mechanical Property Change - An in situ method deploy and/or plasticize a shape-memory material in order to change the material's physical dimensions and/or mechanical properties, including a method for deploying a shape-memory polymer having a deformed or compressed shape in an environment at a first temperature, the shape memory polymer having a first glass transition temperature which is greater than the first temperature. The method also includes decreasing the glass transition temperature of shape memory polymer from the first glass transition temperature to a second glass transition temperature which is less than or equal to the first temperature; and expanding the shape memory polymer to deploy the shape memory polymer in a deployed shape. | 01-23-2014 |
20140352974 | REACTIVE CHOKE FOR AUTOMATIC WELLBORE FLUID MANAGEMENT AND METHODS OF USING SAME - Fluid actuated chokes include an expandable material that expands due to an undesired fluid coming in contact with the choke. The choke includes one or more passageways through which desired fluids from a well flow unimpeded. The choke is disposed in a downhole tool as part of a downhole completion. When one or more undesired fluids enters a production stream flowing through the downhole completion and, thus, the downhole tool, and contacts the choke, the expandable material expands causing fluid flow through the passageway(s) to be restricted and, in some cases, completely closed off. Thus, the choke automatically detects and reacts, i.e., restricts fluid flow through the choke, when contacted by the undesired fluid(s). | 12-04-2014 |
20150064032 | Thermoelectric Cooling Devices on Electrical Submersible Pump - An electric submersible well pump assembly includes a pump and an electrical motor filled with a dielectric lubricant. A capsule extends around a portion of the motor, defining a chamber between the capsule and the motor. A port through a side wall of the motor communicates the lubricant within the motor to the chamber. Thermoelectric devices are located within the chamber. Voltage supplied to the thermoelectric devices cools the lubricant. | 03-05-2015 |
20150202827 | METHOD FOR PREPARING A POROUS FLUOROPOLYMER AND PREPARING AN ARTICLE OF SAME - A method for preparing a porous fluoropolymer precursor includes combining a fluoropolymer and a removable additive to form a composition, the removable additive having a thermal decomposition temperature greater than a sintering temperature of the fluoropolymer, compressing the composition to form a preform, and sintering the preform to form the porous fluoropolymer precursor. A method for preparing a porous fluoropolymer includes disposing the porous fluoropolymer precursor in a removing agent, contacting the removable additive with the removing agent, and removing, by the removing agent, the removable additive from the porous fluoropolymer precursor to form the porous fluoropolymer, wherein the porous fluoropolymer comprises a plurality of pores formed by removing the removable additive | 07-23-2015 |
20150210824 | NANOCOMPOSITE MICROGELS, METHODS OF MANUFACTURE, AND USES THEREOF - Nanocomposite microgel particles containing a three-dimensional network, containing a water-swellable nanoclay and an organic network polymer. The nanocomposite microgel particles include primary nanocomposite microgel particles having a mean diameter of 1 to 10 micrometers. Also disclosed is a method of manufacture for the nanocomposite microgel particles. | 07-30-2015 |
20150210825 | ENHANCED WATER SWELLABLE COMPOSITIONS - Nanocomposite microgel particles containing a three-dimensional network, containing a water-swellable nanoclay and an organic network polymer. The nanocomposite microgel particles include primary nanocomposite microgel particles having a mean diameter of 1 to 10 micrometers. Also disclosed is a method of manufacture for the nanocomposite microgel particles. The nanocomposite microgel particles can be used together with a base polymer to provide water swellable compositions. | 07-30-2015 |
Patent application number | Description | Published |
20120236723 | Latency Analysis of Traffic Passing Through an Ethernet Switch - A method for accurately measuring, recording and reporting latency of an Ethernet switch is disclosed. Various packet queues in the switch are monitored at any given time and forwarding latency is calculated. Latency data from multiple switching elements in a network is collected to provide end-to-end forwarding latency of a system. | 09-20-2012 |
20140269378 | System And Method For Determining A Cause Of Network Congestion - A method and apparatus of a device that determines a cause and effect of congestion in this device is described. In an exemplary embodiment, the device measures a queue group occupancy of a queue group for a port in the device, where the queue group stores a plurality of packets to be communicated through that port. In addition, the device determines if the measurement indicates a potential congestion of the queue group, where the congestion prevents a packet from being communicated within a time period. If potential congestion exists on that queue group, the device further gathers information regarding packets to be transmitted through that port. For example, the device can gather statistics packets that are stored in the queue group and/or new enqueue packets. | 09-18-2014 |
20140269379 | System And Method For Determining An Effect Of Network Congestion - A method and apparatus of a device that determines a cause and effect of congestion in this device is described. The device determines an effect of congestion in the device. The device measures a queue group occupancy of a queue group for a port in the device, where the queue group stores a plurality of packets to be communicated through that port. The device further determines if congestion exists on that queue group using the measurement, where the congestion prevents a packet of the plurality of packets from being communicated within a time period. If the congestion exists on that queue group, the device additionally gathers information regarding packets to be transmitted through that port. For example, the device can gather statistics packets that are stored in the queue group and/or new enqueue packets. | 09-18-2014 |
Patent application number | Description | Published |
20120285517 | SCHOTTKY BARRIER SOLAR CELLS WITH HIGH AND LOW WORK FUNCTION METAL CONTACTS - A Schottky Barrier solar cell having at least one of a low work function region and a high work function region provided on the front or back surface of a lightly-doped absorber material, which may be produced in a variety of different geometries. The method of producing the Schottky Barrier solar cells allows for short processing times and the use of low temperatures. | 11-15-2012 |
20120285518 | Solar cell with interdigitated back contacts formed from high and low work-function-tuned silicides of the same metal - A solar cell having n-type and p-type interdigitated back contacts (IBCs), which cover the entire back surface of the absorber layer. The spatial separation of the IBCs is in a direction perpendicular to the back surface, thus providing borderless contacts having a zero-footprint separation. As the contacts are on the back, photons incident on the cell's front surface can be absorbed without any shadowing. | 11-15-2012 |
20120326212 | HIGH k GATE STACK ON III-V COMPOUND SEMICONDUCTORS - A method of forming a high k gate stack on a surface of a III-V compound semiconductor, such GaAs, is provided. The method includes subjecting a III-V compound semiconductor material to a precleaning process which removes native oxides from a surface of the III-V compound semiconductor material; forming a semiconductor, e.g., amorphous Si, layer in-situ on the cleaned surface of the III-V compound semiconductor material; and forming a dielectric material having a dielectric constant that is greater than silicon dioxide on the semiconducting layer. In some embodiments, the semiconducting layer is partially or completely converted into a layer including at least a surface layer that is comprised of AO | 12-27-2012 |
Patent application number | Description | Published |
20100221867 | LOW COST SOI SUBSTRATES FOR MONOLITHIC SOLAR CELLS - A lost cost method for fabricating SOI substrates is provided. The method includes forming a stack of p-type doped amorphous Si-containing layers on a semiconductor region of a substrate by utilizing an evaporation deposition process. A solid phase recrystallization step is then performed to convert the amorphous Si-containing layers within the stack into a stack of p-type doped single crystalline Si-containing layers. After recrystallization, the single crystalline Si-containing layers are subjected to anodization and at least an oxidation step to form an SOI substrate. Solar cells and/or other semiconductor devices can be formed on the upper surface of the inventive SOI substrate. | 09-02-2010 |
20110001167 | REDUCED DEFECT SEMICONDUCTOR-ON-INSULATOR HETERO-STRUCTURES - A semiconductor-on-insulator hetero-structure and a method for fabricating the semiconductor-on-insulator hetero-structure include a crystalline substrate and a dielectric layer located thereupon having an aperture that exposes the crystalline substrate. The semiconductor-on-insulator hetero-structure and the method for fabricating the semiconductor-on-insulator hetero-structure also include a semiconductor layer of composition different than the crystalline substrate located within the aperture and upon the dielectric layer. A portion of the semiconductor layer located aligned over the aperture includes a defect. A portion of the semiconductor layer located aligned over the dielectric layer does not include a defect. Upon removing the portion of the semiconductor layer located aligned over the aperture a reduced defect semiconductor-on-insulator hetero-structure is formed. | 01-06-2011 |
20110175164 | DEVICE STRUCTURE, LAYOUT AND FABRICATION METHOD FOR UNIAXIALLY STRAINED TRANSISTORS - A semiconductor device and method for fabricating a semiconductor device include providing a strained semiconductor layer having a first strained axis, forming an active region within a surface of the strained semiconductor layer where the active region has a longitudinal axis along the strained axis and forming gate structures over the active region. Raised source/drain regions are formed on the active regions above and over the surface of the strained semiconductor layer and adjacent to the gate structures to form transistor devices. | 07-21-2011 |
20110175166 | STRAINED CMOS DEVICE, CIRCUIT AND METHOD OF FABRICATION - A semiconductor device and fabrication method include a strained semiconductor layer having a strain in one axis. A long fin and a short fin are formed in the semiconductor layer such that the long fin has a strained length along the one axis. An n-type transistor is formed on the long fin, and a p-type transistor is formed on the at least one short fin. The strain in the n-type transistor improves performance. | 07-21-2011 |
20110186804 | NANOSCALE CHEMICAL TEMPLATING WITH OXYGEN REACTIVE MATERIALS - A method of fabricating templated semiconductor nanowires on a surface of a semiconductor substrate for use in semiconductor device applications is provided. The method includes controlling the spatial placement of the semiconductor nanowires by using an oxygen reactive seed material. The present invention also provides semiconductor structures including semiconductor nanowires. In yet another embodiment, patterning of a compound semiconductor substrate or other like substrate which is capable of forming a compound semiconductor alloy with an oxygen reactive element during a subsequent annealing step is provided. This embodiment provides a patterned substrate that can be used in various applications including, for example, in semiconductor device manufacturing, optoelectronic device manufacturing and solar cell device manufacturing. | 08-04-2011 |
20110186969 | PATTERNED DOPING OF SEMICONDUCTOR SUBSTRATES USING PHOTOSENSITIVE MONOLAYERS - A semiconductor device and a method of fabricating a semiconductor device are disclosed. Embodiments of the invention use a photosensitive self-assembled monolayer to pattern the surface of a substrate into hydrophilic and hydrophobic regions, and an aqueous (or alcohol) solution of a dopant compound is deposited on the substrate surface. The dopant compound only adheres on the hydrophilic regions. After deposition, the substrate is coated with a very thin layer of oxide to cap the compounds, and the substrate is annealed at high temperatures to diffuse the dopant atoms into the silicon and to activate the dopant. In one embodiment, the method comprises providing a semiconductor substrate including an oxide surface, patterning said surface into hydrophobic and hydrophilic regions, depositing a compound including a dopant on the substrate, wherein the dopant adheres to the hydrophilic region, and diffusing the dopant into the oxide surface of the substrate. | 08-04-2011 |
20120261762 | DEVICE STRUCTURE, LAYOUT AND FABRICATION METHOD FOR UNIAXIALLY STRAINED TRANSISTORS - A semiconductor device and method for fabricating a semiconductor device include providing a strained semiconductor layer having a first strained axis, forming an active region within a surface of the strained semiconductor layer where the active region has a longitudinal axis along the strained axis and forming gate structures over the active region. Raised source/drain regions are formed on the active regions above and over the surface of the strained semiconductor layer and adjacent to the gate structures to form transistor devices. | 10-18-2012 |
20120273925 | PATTERNED DOPING OF SEMICONDUCTOR SUBSTRATES USING PHOTOSENSITIVE MONOLAYERS - A semiconductor device and a method of fabricating a semiconductor device are disclosed. Embodiments of the invention use a photosensitive self-assembled monolayer to pattern the surface of a substrate into hydrophilic and hydrophobic regions, and an aqueous (or alcohol) solution of a dopant compound is deposited on the substrate surface. The dopant compound only adheres on the hydrophilic regions. After deposition, the substrate is coated with a very thin layer of oxide to cap the compounds, and the substrate is annealed at high temperatures to diffuse the dopant atoms into the silicon and to activate the dopant. In one embodiment, the method comprises providing a semiconductor substrate including an oxide surface, patterning said surface into hydrophobic and hydrophilic regions, depositing a compound including a dopant on the substrate, wherein the dopant adheres to the hydrophilic region, and diffusing the dopant into the oxide surface of the substrate. | 11-01-2012 |
20120286235 | NANOSCALE CHEMICAL TEMPLATING WITH OXYGEN REACTIVE MATERIALS - A method of fabricating templated semiconductor nanowires on a surface of a semiconductor substrate for use in semiconductor device applications is provided. The method includes controlling the spatial placement of the semiconductor nanowires by using an oxygen reactive seed material. The present invention also provides semiconductor structures including semiconductor nanowires. In yet another embodiment, patterning of a compound semiconductor substrate or other like substrate which is capable of forming a compound semiconductor alloy with an oxygen reactive element during a subsequent annealing step is provided. This embodiment provides a patterned substrate that can be used in various applications including, for example, in semiconductor device manufacturing, optoelectronic device manufacturing and solar cell device manufacturing. | 11-15-2012 |
20120289035 | NANOSCALE CHEMICAL TEMPLATING WITH OXYGEN REACTIVE MATERIALS - A method of fabricating templated semiconductor nanowires on a surface of a semiconductor substrate for use in semiconductor device applications is provided. The method includes controlling the spatial placement of the semiconductor nanowires by using an oxygen reactive seed material. The present invention also provides semiconductor structures including semiconductor nanowires. In yet another embodiment, patterning of a compound semiconductor substrate or other like substrate which is capable of forming a compound semiconductor alloy with an oxygen reactive element during a subsequent annealing step is provided. This embodiment provides a patterned substrate that can be used in various applications including, for example, in semiconductor device manufacturing, optoelectronic device manufacturing and solar cell device manufacturing. | 11-15-2012 |
20130220408 | High Efficiency Flexible Solar Cells For Consumer Electronics - A flexible solar cell comprises an epitaxially grown III-V layer having a first layer grown on a base substrate, at least one intermediate layer grown on the first layer, and a cap layer grown on the at least one intermediate layer, the III-V layer being separated from the base substrate by controllably spalling the first layer from the base substrate; and a flexible substrate coupled to the epitaxially grown III-V layer. The flexible solar cell may be used to provide power to an electronic device. | 08-29-2013 |
20130330918 | PATTERNED DOPING OF SEMICONDUCTOR SUBSTRATES USING PHOTOSENSITIVE MONOLAYERS - A semiconductor device and a method of fabricating a semiconductor device are disclosed. Embodiments of the invention use a photosensitive self-assembled monolayer to pattern the surface of a substrate into hydrophilic and hydrophobic regions, and an aqueous (or alcohol) solution of a dopant compound is deposited on the substrate surface. The dopant compound only adheres on the hydrophilic regions. After deposition, the substrate is coated with a very thin layer of oxide to cap the compounds, and the substrate is annealed at high temperatures to diffuse the dopant atoms into the silicon and to activate the dopant. In one embodiment, the method comprises providing a semiconductor substrate including an oxide surface, patterning said surface into hydrophobic and hydrophilic regions, depositing a compound including a dopant on the substrate, wherein the dopant adheres to the hydrophilic region, and diffusing the dopant into the oxide surface of the substrate. | 12-12-2013 |
20140113402 | High Efficiency Flexible Solar Cells For Consumer Electronics - A method comprises providing a base substrate having a surface; disposing layers of III-V semiconductor material on the surface of the base substrate using a chemical vapor deposition technique or a molecular beam epitaxy technique; disposing a stressor layer on the layer of III-V semiconductor material; operatively associating a flexible handle substrate with the stressor layer; and using controlled spalling to separate the layer of III-V semiconductor material from the base substrate to expose a surface of the layer of III-V semiconductor material. | 04-24-2014 |
Patent application number | Description | Published |
20090045940 | Wireless preprocessing sensor - A system and method for a wireless preprocessing sensor are provided. An analysis application is operable to communicate wirelessly. The wireless preprocessing sensor includes a sensor, a processor and a wireless communication interface. The sensor is operable to measure a vibration of a rotating mechanism. The processor is operable to receive measurements of vibration from the sensor, analyze a plurality of vibration measurements to produce information representing a characteristic of the vibration of the rotating mechanism, and send the information to the analysis application via the wireless communication interface. | 02-19-2009 |
20100030492 | APPARATUS AND METHOD FOR IDENTIFYING HEALTH INDICATORS FOR ROLLING ELEMENT BEARINGS - A method includes receiving an input signal containing information associated with a rolling element bearing and/or a piece of equipment containing the rolling element bearing. The method also includes decomposing the input signal into a frequency-domain signal and determining at least one family of frequencies corresponding to at least one failure mode of the rolling element bearing. The method further includes generating a reconstructed input signal using the at least one family of frequencies and the frequency-domain signal. In addition, the method includes determining, using the reconstructed input signal, an indicator identifying an overall health of the rolling element bearing. The indicator could be determined using a baseline signal associated with either (i) normal operation of the rolling element bearing and/or the piece of equipment or (ii) defective operation of the rolling element bearing and/or the piece of equipment (where a severity of the defective operation will increase over time). | 02-04-2010 |
20100062735 | HANDHELD APPARATUS AND METHOD FOR DETERMINING THE RELIABILITY OF A NETWORK CONNECTION AT A SITE - A method includes receiving wireless signals from a wireless network at a handheld device located at a specified site. The wireless signals are associated with a network connection at the specified site. The method also includes determining one or more metrics related to a reliability of the network connection at the specified site. In addition, the method includes determining that a class of application or device is supported by the network connection using the one or more metrics. The one or more metrics could include signal strength, bandwidth, latency, average number of channels available, number of routing elements visible, and/or average latency. Determining that the class of application or device is supported by the network connection could include determining that each of the one or more metrics is suitable for the class of application or device based on a criticality of the class of application or device. | 03-11-2010 |
20120188073 | ASSET-SPECIFIC EQUIPMENT HEALTH MONITORING (EHM) FOR INDUSTRIAL EQUIPMENT USING STANDARDIZED ASSET MODELS - A system includes at least one sensor and an equipment health monitoring (EHM) unit. The at least one sensor is configured to measure one or more characteristics of an asset, where the asset includes a piece of equipment. The EHM unit includes at least one sensor interface configured to receive at least one input signal associated with the asset from the sensor(s). The EHM unit also includes at least one processing unit operable to be pre-configured to identify a specified fault in the asset using the input signals and an asset-specific model that includes a combination of standard subsystem models. The EHM unit further includes at least one output interface configured to provide an indicator identifying the fault. The standard subsystem models could include standardized fault models configured to identify faults for standard assets. | 07-26-2012 |
20130207810 | SYSTEM AND METHOD FOR BLIND FAULT DETECTION FOR ROTATING MACHINERY - A system includes more sensors configured to measure one or more characteristics of rotating equipment and a blind fault detection device. The blind fault detection device includes an input interface configured to receive at least one input signal from the one or more sensors. The blind fault detection device also includes a processing unit configured to identify a fault in the rotating equipment using the at least one input signal. The blind fault detection device further includes an output interface configured to provide an indicator identifying the fault. The processing unit is configured to identify the fault by determining at least one family of frequencies related to at least one sensor point, determining an average energy for the at least one sensor point based on the at least one family of frequencies, and comparing the average energy to a baseline value. | 08-15-2013 |
Patent application number | Description | Published |
20130198021 | PASSCODE MANAGEMENT FOR AUTHORIZATION OF IN-APPLICATION PURCHASES ON A MOBILE DEVICE - Passcodes may be managed for an account that is associated with multiple mobile devices. A list of mobile devices, associated with the account, may be provided to a user, where the account may be associated with a verification passcode that is used to verify purchases. The user may select a set of mobile devices from the list, and the selected set of mobile devices may be enabled to make purchases that are charged to the account. A request may be received, from one of the mobile devices, to make a purchase, and a passcode may be received from the one of the mobile devices. The request for the purchase may be permitted when the passcode matches the verification passcode. | 08-01-2013 |
20150215782 | MOBILE DEVICE MANAGEMENT - A device may receive information associated with a particular entity and trigger, based on the information, a status for the particular entity. The device may transmit, based on triggering the status, a list of a plurality of mobile devices and may receive an identified set of mobile devices from the list of the plurality of mobile devices. The device may further receive, from a selected mobile device, a request to perform an action and receive a string of characters from the selected mobile device. The device may further transmit, based on receiving the string of characters, an instruction command to the selected mobile device when the string of characters matches a verification string of characters. | 07-30-2015 |