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34 results about "Endpoint Determination" patented technology
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Establishment of the level of a quantifiable effect indicative of a biologic process. The evaluation is frequently to detect the degree of toxic or therapeutic effect.
Systems for monitoring and controlling unit operations that include distillation
InactiveUS7603889B2High sensitivityHigh dielectric constantProcess control/regulationAnalysing solids using sonic/ultrasonic/infrasonic wavesDistillationUnit operation
Owner:MEAS FRANCE
Monitoring and controlling unit operations
InactiveUS20070017291A1Efficiently sensingEffective monitoringProcess control/regulationAnalysing solids using sonic/ultrasonic/infrasonic wavesDistillationUnit operation
Fluid sensor methods and systems adapted for monitoring and / or controlling distillation operations in fluidic systems, such as batch distillation operations or continuous distillation operations, are disclosed. Preferred embodiments are directed to process monitoring and / or process control for unit operations involving endpoint determination of a distillation, for example, as applied to a liquid-component-switching operation (e.g., a solvent switching operation), a liquid-liquid separation operation, a solute concentration operation, a dispersed-phase concentration operation, among others.
Owner:MEAS FRANCE
Voice detection method under noise condition
The invention provides a voice detection method under noise condition, and belongs to the technical fields of digital signal processing, computer artificial intelligence and pattern recognition. The method comprises the following steps of: converting input signals to a frequency domain, and dividing into subbands; calculating a power spectrum of each subband to form a subband power spectrum; calculating mean-square deviation of the subband power spectrum of each frame, and comparing the mean-square deviation serving as a detection characteristic with an adaptive voice detection threshold to determine whether the current frame contains voice signals; and according to a detection result, adopting a certain endpoint determination strategy to determine an initial position and an ending position of a voice segment.
Owner:HARBIN ENG UNIV
Converter steelmaking endpoint determination method and system, control method and control system
InactiveCN102206727AQuality assuranceIncrease the level of automationManufacturing convertersSteelmakingAutomatic control
The embodiment of the invention discloses a converter steelmaking endpoint determination method, which comprises the following steps of: acquiring flame information of flames at a fire hole, and extracting characteristic information from the flame information; and establishing an endpoint prediction model, and forecasting the converter steelmaking endpoint by combining the characteristic information and the endpoint prediction model. The invention also discloses a converter steelmaking endpoint determination system employing the method, a control method and a control system. The control system can analyze the whole change process of molten steel carbon and temperature on line in real time so as to lighten labor intensity of steelmaking workers and ensure the quality of steel and can realize automatic control of a blowing endpoint and improve the automation level of converter steelmaking; and because the converter steelmaking endpoint is determined by flame images and light intensity, the hit rate of the converter smelting endpoint is improved, and the smelting time is shortened by 3 to 4 minutes; therefore, the production efficiency is improved and the cost is reduced.
Owner:HUNAN RAMON SCI & TECH
Converter steel-making endpoint determination method and system based on flame image CNN recognizing and modeling process
ActiveCN105678332AOvercome limitationsEasy to identifyCharacter and pattern recognitionAlgorithmNetwork model
The invention relates to a converter steel-making endpoint determination method and a system based on the flame image CNN recognizing and modeling process and belongs to the field of artificial intelligence. According to the technical scheme of the invention, firstly, acquired flame images are converted into an HSI space, and then the threshold segmentation is conducted. Secondly, segmented images are combined and a simply connected flame image is obtained through the post processing process. Thirdly, disturbance points generated due to poor segmentation are removed, and then segmented images can be obtained. Fourthly, images are pre-processed and a convolution neural network recognition model is constructed. The pre-processed images are directly input into the convolution neural network recognition model and the network is trained in the off-line state based on the gradient descent method. The off-line well trained convolution neural network recognition model is subjected to on-line judgment. The flame image of a converter is acquired, pre-processed and input into the network model and then the model outputs a judgment result. According to the technical scheme of the invention, the subjective influence on the converter flame observation process of workers and the error of the endpoint determination among workers can be avoided. Meanwhile, the endpoint of the converter can be accurately judged in real time.
Owner:KUNMING UNIV OF SCI & TECH
Journey Destination Endpoint Determination
ActiveUS20130158866A1Overcome limitationsPosition fixationNavigation instrumentsData streamData element
A system and method for establishing a journey destination endpoint is disclosed. The system comprises a communication module, a stop classification module and an endpoint establishment module. The communication module receives a stream of data including a first data element and a second data element from a global positioning system. The communication module receives a set of sensor data from one or more sensors. The stop classification module detects a stop for a traveling vehicle based at least in part on the stream of data and the set of sensor data. The stop classification module applies one or more metric criteria to the first data element and the second data element to determine a type of the stop. The endpoint establishment module establishes a journey destination endpoint based on the type of the stop. The endpoint establishment module associates the journey destination endpoint with retrieval identification data.
Owner:TOYOTA JIDOSHA KK
Apparatus and methods for spectrum based monitoring of chemical mechanical polishing
InactiveCN101242931AHigh precisionSemiconductor/solid-state device testing/measurementSemiconductor/solid-state device manufacturingCurrent spectrumEndpoint Determination
Methods and apparatus for spectrum-based endpointing. An endpointing method includes selecting a reference spectrum. The reference spectrum is a spectrum of white light reflected from a film of interest on a first substrate and has a thickness greater than a target thickness. The reference spectrum is empirically selected for particular spectrum-based endpoint determination logic so that the target thickness is achieved when endpoint is called by applying the particular spectrum-based endpoint logic. The method includes obtaining a current spectrum. The current spectrum is a spectrum of white light reflected from a film of interest on a second substrate when the film of interest is being subjected to a polishing step and has a current thickness that is greater than the target thickness. The method includes determining, for the second substrate, when an endpoint of the polishing step has been achieved. The determining is based on the reference and current spectra.
Owner:APPLIED MATERIALS INC
Advanced process sensing and control using near infrared spectral reflectometry
Embodiments described herein provide a method and apparatus for obtaining process information in a substrate manufacturing process using plasma. In one embodiment, a chamber is provided having one or more optical metrology modules that are positioned such that optical energy from the plasma process is detected at substantially orthogonal angles. Metrics derived from detected optical energy may be used for endpoint determination, substrate temperature, and monitoring of critical dimensions on the substrate.
Owner:APPLIED MATERIALS INC
Method to measure oxide thickness by FTIR to improve an in-line CMP endpoint determination
A method for determining a material layer thickness transmissive to infrared (IR) energy in a semiconductor wafer manufacturing process including providing at least one semiconductor wafer comprising an IR transmissive layer; passing IR energy through the IR transmissive layer to produce at least one Fourier transform infrared (FTIR) spectrum; and, determining an amount of the IR transmissive layer present according to an amount of IR energy absorbed by a predetermined contributing characteristic vibrational mode portion of the FTIR spectrum.
Owner:TAIWAN SEMICON MFG CO LTD
Etching endpoint determination method
InactiveUS20090211706A1Accurate detectionSemiconductor/solid-state device testing/measurementElectric discharge tubesLuminous intensitySequential data
A microscopic change in a luminous intensity occurring near an etching endpoint is accurately detected, whereby the endpoint of etching is quickly determined. An etching endpoint determination method for determining an endpoint of etching processing in a plasma etching apparatus that introduces a processing gas into a vacuum chamber, produces plasma by feeding high-frequency energy to a introduced processing gas, and uses the produced plasma to perform plasma processing on a workpiece stored in the chamber includes: a step of sampling light of a pre-set wavelength from light emitted by the plasma produced in the vacuum chamber, acquiring as time-sequential data the luminous intensity of the sampled light of the specific wavelength, and computing a regression line on the basis of the acquired time-sequential data; and a step of computing distances in a time-base direction between the regression line and the time-sequential data which are obtained at the first step. An endpoint of etching processing is determined based in the distances in the time-base direction obtained at the second step.
Owner:HITACHI HIGH-TECH CORP
Method for preparing rare earth fluoride by taking rare earth oxide as raw material
InactiveCN101607733AWide variety of sourcesLess impuritiesFluoride preparationRare earth metal compoundsHydrofluoric acidThermal insulation
The invention relates to a method for preparing rare earth fluoride by taking rare earth oxide as a raw material, which comprises the steps of: (1) mixing the rare earth oxide with water, and adding concentrated hydrochloric acid into the mixture to generate rare earth chloride solution; (2) increasing the temperature of the rare earth chloride solution to be between 70 and 90 DEG C, adding a precipitator into the rare earth chloride solution, and performing thermal insulation for 10 to 30 minutes; (3) adding hydrofluoric acid into a reaction liquid, and performing a fluoridation reaction for 5 to 30 minutes at a temperature of between 70 and 90 DEG C until the reaction is complete; and (4) obtaining the rare earth fluoride by a precipitate generated by the reaction through washing, settlement, filtration and drying. The method ensures that the formed rare earth fluoride has large particles and is easy to filter, wash and precipitate after the precipitator, namely propane diacid is added, and effectively overcomes the disadvantages that the rare earth fluoride is easy for penetration filtration and is difficult to precipitate in the prior art; a fluorination endpoint determination method is adopted, which avoids the various problems caused by adding excessive hydrofluoric acid; and at the same time, mother solution containing hydrochloric acid can be circularly used, which has less discharge of waste liquid and is favorable for environmental protection.
Owner:TIANJIN CHEM REAGENT RES INST
Advanced process sensing and control using near infrared spectral reflectometry
Embodiments described herein provide a method and apparatus for obtaining process information in a substrate manufacturing process using plasma. In one embodiment, a chamber is provided having one or more optical metrology modules that are positioned such that optical energy from the plasma process is detected at substantially orthogonal angles. Metrics derived from detected optical energy may be used for endpoint determination, substrate temperature, and monitoring of critical dimensions on the substrate.
Owner:APPLIED MATERIALS INC
Etching endpoint determination method
InactiveUS8083960B2Accurate detectionSemiconductor/solid-state device testing/measurementElectric discharge tubesLuminous intensityEndpoint Determination
A microscopic change in a luminous intensity occurring near an etching endpoint is accurately detected, whereby the endpoint of etching is quickly determined. An etching endpoint determination method for determining an endpoint of etching processing in a plasma etching apparatus that introduces a processing gas into a vacuum chamber, produces plasma by feeding high-frequency energy to a introduced processing gas, and uses the produced plasma to perform plasma processing on a workpiece stored in the chamber includes: a step of sampling light of a pre-set wavelength from light emitted by the plasma produced in the vacuum chamber, acquiring as time-sequential data the luminous intensity of the sampled light of the specific wavelength, and computing a regression line on the basis of the acquired time-sequential data; and a step of computing distances in a time-base direction between the regression line and the time-sequential data which are obtained at the first step. An endpoint of etching processing is determined based in the distances in the time-base direction obtained at the second step.
Owner:HITACHI HIGH-TECH CORP
Liquor ethanol concentration online detection method of traditional Chinese medicine alcohol precipitation process
ActiveCN103091204ARealize real-time online detectionRealize automated productionSpecific gravity measurementRefluxAlcohol
The invention discloses a liquor ethanol concentration online detection method of a traditional Chinese medicine alcohol precipitation process. The liquor ethanol concentration online detection method comprises the following steps of firstly, pouring Chinese medical extract into an alcohol precipitation tank; starting an agitator blade; adding ethanol and mixing with the Chinese medical extract to obtain alcohol precipitation mixing solution; then starting an alcohol precipitation liquid output pump, transferring the alcohol precipitation mixing solution to a mixed solution settlement tank to obtain clear liquid after multi-stage filtering; transferring the clear liquid to a clear liquid determination pool; finally conveying the clear liquid to the alcohol precipitation tank by a clear liquid reflux pump to form a cycle; determining the density of the clear liquid in the clear liquid determination pool through an on-line densimeter online in real time; calibrating the concentration of ethanol in the clear liquid and the density of the clear liquid; building a corresponding function relation of the ethanol concentration and the density of the clear liquid in the clear liquid; and determining the ethanol concentration in the clear liquid through the corresponding function relation online in real time. Real-time online detection of the liquor ethanol concentration in the alcohol precipitation process is achieved; the liquor ethanol concentration online detection method can be applied to endpoint determination of the alcohol precipitation technology; and the batch stability and the product quality of the alcohol precipitation technology are improved.
Owner:苏州浙远自动化工程技术有限公司
Apparatus and methods for spectrum based monitoring of chemical mechanical polishing
ActiveCN101391397AHigh precisionSemiconductor/solid-state device testing/measurementSemiconductor/solid-state device manufacturingEngineeringEndpoint Determination
Apparatus and methods for spectrum based monitoring of chemical mechanical polishing, including spectrum based endpointing, spectrum based polishing rate adjustment, flushing a top surface of an optical head, or a pad with a window. The spectrum-based endpointing uses a reference spectrum which is empirically selected for particular spectrum based endpoint determination logic so that the target thickness is achieved when endpoint is called by applying the particular spectrum based endpoint logic. The polishing endpoint can be determined using a difference trace or a sequence of index values. The flushing system creates a laminar gas flow across the top surface of the optical head. The vacuum nozzle and vacuum sources are configured so that the flow if gas is laminar. The window includes a soft plastic portion and a crystalline or glass like portion. The spectrum based polishing rate adjustment includes obtaining spectra for different zones on a substrate.
Owner:APPLIED MATERIALS INC
Judgment method of orp value titration end point of permanganate index water quality analyzer
ActiveCN102288667AExclude wrong measurementsMaterial electrochemical variablesEndpoint DeterminationTitration
The invention relates to a permanganate index type water quality analyzer, in particular to a permanganate index type water quality analyzer for determination of a titration endpoint in an ORP (oxidation-reduction potential) electrode method. In the titration endpoint determination method for the ORP value of the permanganate index type water quality analyzer, the maximum ORP_A of the ORP value is obtained in the first phase of each measurement, the minimum ORP_B of the ORP value is obtained in the second phase of the measurement, and ORP_K is calculated as the determined ORP value for the titration endpoint of the measurement through ORP_K = [(ORP_A) - (ORP_B)] * 30% + (ORP_B). Therefore, the ORP value for each titration endpoint is dynamically determined, errors in determination caused by ORP aging and drifting can be eliminated, and maintenance avoidance and accurate determination can be effectively achieved during the service life of the whole ORP electrode.
Owner:厦门隆力德环境技术开发有限公司
Journey destination endpoint determination
Owner:TOYOTA JIDOSHA KK
Apparatus and method for determining treatment endpoints for allergen testing
A system, a method, and an apparatus are described herein for determining skin test sensitivities. A first skin test to evaluate a patient's skin reaction to one or more allergens may he performed. After measurements are taken of any reactions to the first skin test, a second skin test may be performed based on the results of the first skin test. Based on the results of the second test, an appropriate treatment endpoint for the patient may be determined. A computer-implemented method may be used for determining skin test sensitivities that may guide a user through one or more appropriate test selection and treatment endpoint determinations.
Owner:GREER LAB
Liquor ethanol concentration online detection method of traditional Chinese medicine alcohol precipitation process
ActiveCN103091204BRealize real-time online detectionRealize automated productionSpecific gravity measurementRefluxAlcohol
Owner:苏州浙远自动化工程技术有限公司
Method for automatically measuring concentration of zirconium in silane on line
ActiveCN110006893AAvoid inaccurate measurementsAvoid cross contaminationMaterial analysis by observing effect on chemical indicatorColor/spectral properties measurementsPeristaltic pumpSilanes
The invention discloses a method for automatically measuring the concentration of zirconium in silane on line. The method comprises the steps: S1, preparation work before detecting is conducted; S2, an online detector is started, parameters are set on a touch screen, and pure water is pumped by a water pump to rinse a reaction cup and a pipeline; S3, a sample solution is pumped into the reaction cup; S4, a color developing pump pumps a solution into the reaction cup, and a heater and a stirrer are started; S5, a titration pump pumps a titration solution for titration, and meanwhile a visual sensor is started till the read RGB value of the solution is equal to the set target value; and S6, the volume of a dripped-in EDTA standard solution is recorded, and the concentration of the zirconiumin the sample solution is calculated. A silane liquid medicine can be managed and controlled in automatic and unmanned modes, the labor cost is saved, and safety and high efficiency are achieved; through a high-precision visual detection unit, stability and accuracy of endpoint determination are sufficiently ensured; and through high-stability peristaltic pumps, accurate metering of a water sampleand reagents is guaranteed, all the reagents are obtained through the independent peristaltic pumps, and thus cross contamination among the reagents is avoided.
Owner:安徽帝业分析仪器有限公司
Chemiluminescence system and method for measuring dissolved oxygen
InactiveCN101368911AHigh sensitivityModerate response speedChemiluminescene/bioluminescenceLuminous intensityFree iodine
Owner:ZHENGZHOU XIANJIE TECH
Endpoint determination for capillary-assisted flow control
ActiveUS20150308626A1Valve arrangementsSemiconductor/solid-state device testing/measurementEngineeringEndpoint Determination
Apparatus and method for determining endpoint of a fluid supply vessel in which fluid flow is controlled through a flow passage disposed in an interior volume of the fluid supply vessel with a static flow restricting device and a selectively actuatable valve element upon establishing fluid flow. The endpoint determination can be employed to terminate fluid supply from the fluid supply vessel and / or to switch from a fluid-depleted supply vessel to a fresh vessel for continuity or renewal of fluid supply operation. The apparatus and method are suitable for use with fluid-utilizing apparatus such as ion implanters.
Owner:ENTEGRIS INC
Voice detection method under noise condition
The invention provides a voice detection method under noise condition, and belongs to the technical fields of digital signal processing, computer artificial intelligence and pattern recognition. The method comprises the following steps of: converting input signals to a frequency domain, and dividing into subbands; calculating a power spectrum of each subband to form a subband power spectrum; calculating mean-square deviation of the subband power spectrum of each frame, and comparing the mean-square deviation serving as a detection characteristic with an adaptive voice detection threshold to determine whether the current frame contains voice signals; and according to a detection result, adopting a certain endpoint determination strategy to determine an initial position and an ending position of a voice segment.
Owner:HARBIN ENG UNIV
In-situ substrate imaging
InactiveCN1943990AAccurately determinePolishing machinesSemiconductor/solid-state device manufacturingComputer visionEndpoint Determination
Methods and products, including computer program products, for endpoint determination. An image of a portion of a substrate is captured in-situ, where the image includes optical information that depends on a thickness of a substrate layer. The image is examined to find a location on the substrate, and a process endpoint is determined using a portion of the optical information that corresponds to the location.
Owner:APPLIED MATERIALS INC
Endpoint determination using individually measured target spectra
InactiveUS20160033958A1Reduce complication inherentSemiconductor/solid-state device testing/measurementSemiconductor/solid-state device manufacturingEngineeringEndpoint Determination
Disclosed are approaches for determining a processing endpoint using individually measured target spectra. More specifically, one approach includes: measuring a white light (WL) target spectra of a semiconductor device on an individual wafer prior to formation of a polishing / planarization material; inputting the WL target spectra to a WL endpoint algorithm of the semiconductor device following formation of the polishing / planarization material; and determining, using the WL endpoint algorithm, the processing endpoint of the polishing / planarization material of the semiconductor device. In another approach, the endpoint measurement process comprises receiving spectra reflected from the semiconductor device during polishing, and comparing the spectra to the WL target spectra, which is previously stored within a storage device. As such, WL target spectra are measured “as is” (e.g., without simplifications, generalizations, assumptions, etc.) for each wafer to reduce complications inherent with the use of an uncertain and / or estimated target.
Owner:GLOBALFOUNDRIES INC +1
Titration endpoint determination method for ORP (oxidation-reduction potential) value of permanganate index type water quality analyzer
ActiveCN102288667BExclude wrong measurementsMaterial electrochemical variablesPhases of clinical researchEndpoint Determination
The invention relates to a permanganate index type water quality analyzer, in particular to a permanganate index type water quality analyzer for determination of a titration endpoint in an ORP (oxidation-reduction potential) electrode method. In the titration endpoint determination method for the ORP value of the permanganate index type water quality analyzer, the maximum ORP_A of the ORP value is obtained in the first phase of each measurement, the minimum ORP_B of the ORP value is obtained in the second phase of the measurement, and ORP_K is calculated as the determined ORP value for the titration endpoint of the measurement through ORP_K = [(ORP_A) - (ORP_B)] * 30% + (ORP_B). Therefore, the ORP value for each titration endpoint is dynamically determined, errors in determination caused by ORP aging and drifting can be eliminated, and maintenance avoidance and accurate determination can be effectively achieved during the service life of the whole ORP electrode.
Owner:厦门隆力德环境技术开发有限公司
Voice endpoint determination
ActiveCN107068147BEasy to handleNatural language analysisSpeech recognitionHuman–computer interactionSpeech sound
Methods, systems, and apparatus are described, including computer programs encoded on computer storage media, for determining endpoints of speech. In one aspect, a method includes an act of accessing voice query log data including voice queries uttered by a particular user. The acts also include determining a pause threshold from the voice query log data including the voice query uttered by the particular user based on the voice query log data including the voice query uttered by the particular user. The actions also include receiving an utterance from the particular user. The actions also include determining that the particular user has stopped speaking for a period of time at least equal to a pause threshold. The acts also include processing the utterance as a voice query based on determining that the particular user has stopped speaking for a period of time at least equal to the pause threshold.
Owner:GOOGLE LLC
Endpoint determination for capillary-assisted flow control
ActiveUS20130125999A1Operating means/releasing devices for valvesSemiconductor/solid-state device testing/measurementEngineeringEndpoint Determination
Apparatus and method for determining endpoint of a fluid supply vessel in which fluid flow is controlled through a flow passage disposed in an interior volume of the fluid supply vessel with a static flow restricting device and a selectively actuatable valve element upon establishing fluid flow. The endpoint determination can be employed to terminate fluid supply from the fluid supply vessel and / or to switch from a fluid-depleted supply vessel to a fresh vessel for continuity or renewal of fluid supply operation. The apparatus and method are suitable for use with fluidutilizing apparatus such as ion implanters.
Owner:ENTEGRIS INC
Apparatus and method for spectrum based monitoring of chemical mechanical polishing
ActiveCN106272030AHigh precisionSemiconductor/solid-state device testing/measurementComputer controlEngineeringEndpoint Determination
The invention discloses an apparatus and method for spectrum based monitoring of chemical mechanical polishing. Apparatus and methods for spectrum based monitoring for chemical mechanical polishing include spectrum based endpointing, spectrum based polishing rate adjustment, flushing a top surface of an optical head, or a pad with a window. The spectrum-based endpointing uses a reference spectrum which is empirically selected for particular spectrum based endpoint determination logic so that a target thickness is achieved when an endpoint is called by applying the particular spectrum based endpoint logic. The polishing endpoint can be determined using a difference trace or a series of sequences. A flushing system creates a laminar gas flow across the top surface of the optical head. A vacuum nozzle and vacuum sources are configured such that the flow of gas is laminar. The window includes a soft plastic portion and a crystalline or vitreous portion. The spectrum based polishing rate adjustment includes obtaining spectra for different zones on a substrate.
Owner:APPLIED MATERIALS INC
Telephony system with intelligent endpoints or intelligent switches to reduce dependency of endpoints on application server
ActiveUS20100246568A1Interconnection arrangementsNetwork connectionsApplication serverApplication software
A system and a method are disclosed for reducing interaction between a server and an endpoint while executing features on an endpoint. The endpoint, and not the application server, includes part or all of the implementation of UT logic and feature logic. The endpoint therefore does not have to rely on server's instructions for executing a feature. The endpoint also includes an endpoint determination module for determining the parts of the UT logic and feature logic implemented on the endpoint and the parts implemented on a switch or a server.
Owner:MITEL NETWORKS INC +1
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