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42435 results about "Computational physics" patented technology
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Computational physics is the study and implementation of numerical analysis to solve problems in physics for which a quantitative theory already exists. Historically, computational physics was the first application of modern computers in science, and is now a subset of computational science.
Vertically stacked field programmable nonvolatile memory and method of fabrication
A very high density field programmable memory is disclosed. An array is formed vertically above a substrate using several layers, each layer of which includes vertically fabricated memory cells. The cell in an N level array may be formed with N+1 masking steps plus masking steps needed for contacts. Maximum use of self alignment techniques minimizes photolithographic limitations. In one embodiment the peripheral circuits are formed in a silicon substrate and an N level array is fabricated above the substrate.
Owner:SANDISK TECH LLC
Movable body drive method, movable body drive system, pattern formation method, pattern forming apparatus, exposure method, exposure apparatus, and device manufacturing method
InactiveUS20070288121A1Improve accuracyScaling errorDigital data processing detailsSemiconductor/solid-state device manufacturingComputational physicsShort term stability
Positional information of a movable body in a Y-axis direction is measured using an interferometer and an encoder whose short-term stability of measurement values excels when compared with the interferometer, and based on the measurement results, a predetermined calibration operation for obtaining correction information for correcting measurement values of the encoder is performed. Accordingly, by using measurement values of the interferometer, correction information for correcting the measurement values of the encoder whose short-term stability of the measurement values excels the interferometer is obtained. Then, based on the measurement values of the encoder and the correction information, the movable body is driven in the Y-axis direction with good precision.
Owner:NIKON CORP
Electric device
InactiveUS20010002703A1Static indicating devicesSolid-state devicesPotential differenceElectrical devices
There is provided an electric device which can prevent a deterioration in a frequency characteristic due to a large electric power external switch connected to an opposite electrode and can prevent a decrease in the number of gradations. The electric device includes a plurality of source signal lines, a plurality of gate signal lines, a plurality of power source supply lines, a plurality of power source control lines, and a plurality of pixels. Each of the plurality of pixels includes a switching TFT, an EL driving TFT, a power source controlling TFT, and an EL element, and the power source controlling TFT controls a potential difference between a cathode and an anode of the EL element.
Owner:SEMICON ENERGY LAB CO LTD
A System and Method for Modelling System Behaviour
ActiveUS20170147722A1Reduce the impactReduce impactMedical simulationDesign optimisation/simulationCollective modelModel system
A method of modelling system behaviour of a physical system, the method including, in one or more electronic processing devices obtaining quantified system data measured for the physical system, the quantified system data being at least partially indicative of the system behaviour for at least a time period, forming at least one population of model units, each model unit including model parameters and at least part of a model, the model parameters being at least partially based on the quantified system data, each model including one or more mathematical equations for modelling system behaviour, for each model unit calculating at least one solution trajectory for at least part of the at least one time period; determining a fitness value based at least in part on the at least one solution trajectory; and, selecting a combination of model units using the fitness values of each model unit, the combination of model units representing a collective model that models the system behaviour.
Owner:EVOLVING MACHINE INTELLIGENCE
TFT mask ROM and method for making same
There is provided a monolithic three dimensional TFT mask ROM array. The array includes a plurality of device levels. Each of the plurality of device levels contains a first set of enabled TFTs and a second set of partially or totally disabled TFTs.
Owner:WODEN TECH INC
Method of patterning a low-k dielectric film
Methods of patterning low-k dielectric films are described. For example, a method includes forming and patterning a mask layer above a low-k dielectric layer, the low-k dielectric layer disposed above a substrate. Exposed portions of the low-k dielectric layer are modified with a plasma process. The modified portions of the low-k dielectric layer are removed selective to the mask layer and unmodified portions of the low-k dielectric layer.
Owner:APPLIED MATERIALS INC
Method to determine optical proximity correction and assist feature rules which account for variations in mask dimensions
InactiveUS6553559B2Photomechanical apparatusOriginals for photomechanical treatmentComputational physicsProcess window
Optical proximity correction (OPC) and assist feature rules are generated using a process window (PW) analysis. A reference pitch is chosen and the mask bias is found that optimizes the process window. This can be done using standard process window analysis or through a weighted process window (WPW) analysis which accounts for focus and dose distributions that are expected in a real process. The WPW analysis gives not only the optimum mask bias, but also the center focus and dose conditions for the optimum process centering. A series of other pitches and mask biases are then analyzed by finding the common process window with the reference pitch. For the standard PW analysis, a common process window is found. For the WPW analysis, the WPW is computed at the center focus and dose conditions found for the reference pitch. If mask or lens errors are to be accounted for, then multiple structures can be included in the analysis. Once the common process windows for the mask features of interest have been computed, functional fits to the data can be found. Once the functional forms have been found for each of the OPC parameters, the rules table can be determined by solving for the spacings of interest in the design.
Owner:GLOBALFOUNDRIES U S INC
Split core sensing transformer
ActiveUS7312686B2Transformers/inductances casingsTransformers/inductances coils/windings/connectionsElectrical conductorTransformer
Owner:VERIS INDS
Apparatus and method for conformal mask manufacturing
ActiveUS20080160431A1Electric discharge tubesPhotosensitive materialsComputational physicsIrradiation
A manufacturing process technology creates a pattern on a first layer using a focused ion beam process. The pattern is transferred to a second layer, which may act as a traditional etch stop layer. The pattern can be formed on the second layer without irradiation by light through a reticle and without wet chemical developing, thereby enabling conformal coverage and very fine critical feature control. Both dark field patterns and light field patterns are disclosed, which may enable reduced or minimal exposure by the focused ion beam.
Owner:NEXGENSEMI HLDG INC
Method for improving optical proximity correction
ActiveUS7350183B2Improve variationDefect minimizationPhotomechanical apparatusOriginals for photomechanical treatmentLine widthComputer science
Owner:GLOBALFOUNDRIES U S INC
Systems and methods for imaging a sample
InactiveUS7148970B2Side lobes in the coherence envelope are reduced or eliminatedCompensation for dispersionUsing optical meansCorrelation functionComputational physics
Owner:THE GENERAL HOSPITAL CORP
Temperature measurement apparatus, method of measuring temperature profile, recording medium and heat treatment apparatus
A temperature measurement apparatus for measuring a temperature profile of a substrate mounted on a rotating table, including a radiation temperature measurement unit configured to measure the temperature of plural temperature measurement areas on a surface of the rotating table in a radius direction of the rotating table by scanning the surface of the rotating table in the radius direction; a temperature map generating unit that specifies the address of the temperature measurement area based on the number of the temperature measurement areas measured by the radiation temperature measurement unit for each of the scanning operations in the radius direction of the rotating table, and the rotating speed of the rotating table, and stores the temperature in correspondence with the corresponding address in a storing unit; and a temperature data display processing unit that displays a temperature profile of the rotating table.
Owner:TOKYO ELECTRON LTD
Optical designs for zero order reduction
InactiveUS20090185274A1Gap be minimalImprove efficiencyDiffraction gratingsStereoscopic photographyOrder reductionLight beam
Apparatus for projecting a pattern includes a first diffractive optical element (DOE) configured to diffract an input beam so as to generate a first diffraction pattern on a first region of a surface, the first diffraction pattern including a zero order beam. A second DOE is configured to diffract the zero order beam so as to generate a second diffraction pattern on a second region of the surface such that the first and the second regions together at least partially cover the surface.
Owner:APPLE INC
Systems and Methods for Providing Maximum Photovoltaic Peak Power Tracking
A micropower Maximum Power Point Tracker (μMPPT) suitable for use in low power applications to maximize the power output for a solar-power cell array. In one embodiment, a μMPPT comprises an electrical circuit which includes a microprocessor / microcontroller used to execute the μMPPT control algorithm, and a modulator controller to control the pulse width or frequency to a high speed switch. In addition, the electrical circuit may include an analog-to-digital (A / D) converter usable to measure the input voltage from a connected solar array, the current through an inductor of the circuit, and the voltage of an attached energy store / load. In another embodiment, the μMPPT may operates in at least two modes depending on the energy store / loads conditions.
Owner:AMBIENT CONTROL SYST
Systems and methods for imaging a sample
InactiveUS6980299B1Side lobes in the coherence envelope are reduced or eliminatedCompensation for dispersionUsing optical meansCorrelation functionComputational physics
A system and method for imaging a sample are provided. In particular, a first combination of light and a second combination of light are received, in which a first cross correlation function is associated with the first combination and a second cross correlation function is associated with the second combination. Each of the first and the second combinations includes a first portion of light which is received from a reference arrangement and a second portion of light which is received from the sample, and a first relative position of the sample associated with the first combination is different than a second relative position of the sample associated with the second combination. In an exemplary embodiment of the present invention, the first cross correlation function is transformed into a first complex cross spectral density and the second cross correlation function is transformed into a second complex cross spectral density. Moreover, a third complex cross spectral density can be determined which is approximately an average of the first complex cross spectral density and the second complex cross spectral density.
Owner:THE GENERAL HOSPITAL CORP
Method of fabricating and architecture for vertical transistor cells and transistor-controlled memory cells
InactiveUS20050001257A1Increased area requirementLimited functionTransistorSolid-state devicesFloating body effectDram memory
In a substrate vertical transistor cells are formed and are arranged, in a transistor cell array, row by row in an x direction and column by column in a y direction. Lower source / drain regions of the transistor cells are connected to a common connection plate. Upper source / drain regions of the transistor cells impart a contact connection for instance to a storage capacitor of a DRAM memory cell. Active trenches running between the transistor cells with word lines are formed along the x direction. The word lines form gate electrodes in sections. A potential at the gate electrode controls a conductive channel in an active region arranged in each case between the upper and the lower source / drain connection region. According to the invention, the active regions of adjacent transistor cells are sections of a contiguous layer body and are connected to one another. An accumulation of charge carriers in the active region and floating body effects are avoided without increasing the area requirement of a transistor cell.
Owner:POLARIS INNOVATIONS LTD
Illumination of integrated analytical systems
ActiveUS20120014837A1Improve performanceImprove scalabilityOptical radiation measurementMicrobiological testing/measurementComputational physicsGlobal illumination
An analytical device including an optically opaque cladding, a sequencing layer including a substrate disposed below the cladding, and a waveguide assembly for receiving optical illumination and introducing illumination into the device. The illumination may be received from a top, a side edge, and a bottom of the device. The waveguide assembly may include a nanoscale aperture disposed in the substrate and extending through the cladding. The aperture defines a reaction cell for receiving a set of reactants. In various aspects, the device includes a sensor element and the illumination pathway is through the sensor element. Waveguides and illumination devices, such as plasmonic illumination devices, are also disclosed. Methods for forming and operating the devices are also disclosed.
Owner:PACIFIC BIOSCIENCES
Methods and devices for charge management for three-dimensional sensing
InactiveUS6906793B2Minimal overheadEffective coloringTelevision system detailsOptical rangefindersCMOSHigh frequency modulation
Structures and methods for three-dimensional image sensing using high frequency modulation includes CMOS-implementable sensor structures using differential charge transfer, including such sensors enabling rapid horizontal and slower vertical dimension local charge collection. Wavelength response of such sensors can be altered dynamically by varying gate potentials. Methods for producing such sensor structures on conventional CMOS fabrication facilities include use of “rich” instructions to command the fabrication process to optimize image sensor rather than digital or analog ICs. One detector structure has closely spaced-apart, elongated finger-like structures that rapidly collect charge in the spaced-apart direction and then move collected charge less rapidly in the elongated direction. Detector response is substantially independent of the collection rate in the elongated direction.
Owner:MICROSOFT TECH LICENSING LLC
Vacuum jacketed electrode for phase change memory element
ActiveUS20070158862A1Improve insulation performanceTransistorSolid-state devicesThermal isolationPhase-change memory
A memory device having a vacuum jacket around the first electrode element for improved thermal isolation. The memory unit includes a first electrode element; a phase change memory element in contact with the first electrode element; a dielectric fill layer surrounding the phase change memory element and the first electrode element, wherein the dielectric layer is spaced from the first electrode element to define a chamber between the first electrode element and the dielectric fill layer; and wherein the phase change memory layer is sealed to the dielectric fill layer to define a thermal isolation jacket around the first electrode element.
Owner:MACRONIX INT CO LTD
Detection of metal disturbance in a magnetic tracking system
InactiveUS7321228B2Improve accuracyPosition fixationDiagnostic recording/measuringMagnetic trackingComputational physics
A method for tracking an object includes producing energy fields at a plurality of different frequencies in a vicinity of the object, and receiving signals that are generated at a location of the object at the different frequencies in response to the energy fields. Multiple computations are made of spatial coordinates of the object based on the signals received at the different frequencies. Convergence of the computations is tested in order to ascertain whether the energy fields have been perturbed by an article in the vicinity of the object.
Owner:BIOSENSE WEBSTER INC
Electromagnetic wave frequency filter
InactiveUS7321707B2Simple designEfficient extractionNanoopticsCoupling light guidesPhase shiftedFrequency matching
In this electromagnetic wave frequency filter, an electromagnetic wave of a predetermined frequency matching a resonant frequency of a resonator 41 is transmitted from an input waveguide 2 to an output waveguide 3 through the resonator 41, and is outputted from a drop port P31. This filter has an input-waveguide-side reflector 211 and an output-waveguide-side reflector 311, which reflect the electromagnetic wave of the predetermined frequency. The electromagnetic wave frequency filter satisfies the following relation:Qinb / (1−cos θ1)<<Qv,Qinb / (1−cos θ1)=Qinr / (1−cos θ2),θ1, θ2≠2Nπ(N=0, 1, . . . ),where θ1 is a phase shift amount of the electromagnetic wave reflected by the input-waveguide-side reflector 211, θ2 is a phase shift amount of the electromagnetic wave reflected by the output-waveguide-side reflector 311, Qinb is a Q-factor between the resonator 41 and the input waveguide 2, Qinr is a Q-factor between the resonator 41 and the output waveguide 31, and Qv is a Q-factor between the resonator 41 and free space.
Owner:JAPAN SCI & TECH CORP +1
Method for lithography model calibration
ActiveUS20070032896A1Easy CalibrationImprove predictabilityPhotomechanical apparatusCalibration apparatusLithography processLithographic artist
A method for separately calibrating an optical model and a resist model of lithography process using information derived from in-situ aerial image measurements to improve the calibration of both the optical model and the resist model components of the lithography simulation model. Aerial images produced by an exposure tool are measured using an image sensor array loaded into the exposure tool. Multiple embodiments of measuring aerial image information and using the measured aerial image information to calibrate the optical model and the resist model are disclosed. The method of the invention creates more accurate and separable optical and resist models, leading to better predictability of the pattern transfer process from mask to wafer, more accurate verification of circuit patterns and how they will actually print in production, and more accurate model-based process control in the wafer fabrication facility.
Owner:ASML NETHERLANDS BV
Electrophoretic display driving scheme
A system and method are disclosed for reducing reverse bias in an electrophoretic display. The system and method include the application of varying levels of voltages across an array of electrophoretic display cells of the electrophoretic display to move the cells towards a stable state in a driving cycle. In addition, the system and method disconnect the voltages from the electrophoretic display cells at a time duration prior to reaching step transitions of the voltages during the driving cycle. Pre-driving approaches apply a first pre-driving voltage at a first polarity to the display cells before driving the display cells with a second driving voltage at a second, opposite polarity. Varying the time duration and amplitude of the pre-driving signals produces further beneficial reduction in reverse bias.
Owner:OSI PHARMA INC +1
Synthesis methods for enhancing electromagnetic compatibility and AC performance of power conversion circuits
InactiveUS6507176B2Apparatus without intermediate ac conversionConversion using Cuk convertorsSynthesis methodsHemt circuits
Five circuit synthesis methods, for forming new power conversion circuits with enhanced electromagnetic compatibility and improved AC performance from old circuits with AC performance and / or electromagnetic compatibility deficiencies, are revealed. The new synthesis methods achieve performance improvements without requiring the addition of magnetic cores. In all cases a simple toroidal magnetic core structure is not precluded. In all cases splitting or adding magnetic windings is required, and, in many cases, additional capacitors are required. Many new circuits formed by applying the synthesis methods are revealed. The results achieved by application of the synthesis methods include zero ripple current at all terminals without adding magnetic cores or requiring a complex magnetic circuit element, cancellation of common mode currents, improved control loop bandwidth, and faster transient response.
Owner:TECHN WITTS
Apparatus and methods for regulating delivery of electrical energy
ActiveUS20050275354A1Electric light circuit arrangementIncandescent lamp energy savingComputational physicsControl theory
Owner:LUTRON TECH CO LLC
Assuring uniformity in the output of an OLED
ActiveUS7859492B2EfficientlyLarge weighting factorStatic indicating devicesDriving currentComputational physics
Owner:GLOBAL OLED TECH
Three-dimensional microelectronic devices including repeating layer patterns of different thicknesses
ActiveUS20100078701A1Reduce drive current variationIncreasing the thicknessTransistorSolid-state devicesEngineeringComputational physics
A vertical NAND flash memory device includes a substrate having a face and a string of serially connected flash memory cells on the substrate. A first flash memory cell is adjacent the face, and a last flash memory cell is remote from the face. The flash memory cells include repeating layer patterns that are stacked on the face, and a pillar that extends through the series of repeating layer patterns. The pillar includes at least one oblique wall. At least two of the series of repeating layer patterns in the string are of different thicknesses. Other vertical microelectronic devices and related fabrication methods are also described.
Owner:SAMSUNG ELECTRONICS CO LTD
Method and apparatus for averaged luminance and uniformity correction in an amoled display
InactiveUS20070290958A1Improve uniformityImproved lifetimeStatic indicating devicesActive matrixDisplay device
A method for the correction of average luminance or luminance uniformity variations in an active-matrix OLED display, comprising:a) providing an active-matrix OLED display;b) determining at a first time a first offset voltage and a first gain relationship between the voltage and the current passing through one or more light-emitting elements;c) receiving a signal for driving the light-emitting elements after step b), correcting the signal by employing the first offset voltage and gain relationship values to compute a linear correction for the light-emitting elements to form a corrected signal, and driving the display with the corrected signal;d) determining at a time after the first time an updated offset voltage and an updated gain relationship between the voltage and the current passing through the light-emitting elements; ande) receiving a signal for driving the one or more light-emitting elements after step d), correcting the signal by employing the updated offset voltage and gain relationship values to compute a linear correction for the light-emitting elements to form an updated corrected signal, and driving the display with the updated corrected signal.
Owner:GLOBAL OLED TECH
Mutual capacitance touch screen and combined mutual capacitance touch screen
InactiveUS20100110038A1Increase capacitanceReduce capacitanceInput/output processes for data processingEngineeringComputational physics
A mutual capacitance touch screen and a combined mutual capacitance touch screen formed by the combination of mutual capacitance touch screens. A driving layer and a sensor layer are included, wherein the driving layer comprises driving electrodes distributed at intervals in the same plane; the sensor layer comprises sense electrodes distributed at intervals in the same plane; and the places where the sense electrodes are distributed in the sensor layer are just over against the intervals between the driving electrodes in the driving layer so that the driving electrodes and the sense electrodes together fill the touch area of the touch screen. The driving electrodes are not over against the sense electrodes in terms of space positions to increase the proportion of capacitance CT to mutual capacitance C, wherein the capacitance CT is formed between the driving electrodes and the top of the sense electrodes; consequently, the effective capacitivity of the mutual capacitance touch screen is effectively increased.
Owner:FOCALTECH SYST LTD
Systems and methods for induction charging with a closed magnetic loop
ActiveUS20130119773A1Electromagnetic wave systemTransformersElectric power transmissionElectric power
Systems, methods, and computer program products for induction charging with a closed magnetic loop are described herein. In one aspect, an apparatus for wireless power transmission comprises a plurality of coplanar coils, each of the plurality of coplanar coils configured to be individually energized and produce a magnetic field. Further, the controller is configured to reverse polarity of the magnetic field of at least one of the plurality of coplanar coils based on a measure of coupling between coils and to select at least two of the plurality of coplanar coils for wireless power transmission based on the measure of coupling between coils.
Owner:QUALCOMM INC
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