64 results about "Examination technique" patented technology

Methods and systems for monitoring semiconductor fabrication processes are provided. A system may include a stage configured to support a specimen and coupled to a measurement device. The measurement device may include an illumination system and a detection system. The illumination system and the detection system may be configured such that the system may be configured to determine multiple properties of the specimen. For example, the system may be configured to determine multiple properties of a specimen including, but not limited to, critical dimension and overlay misregistration. In this manner, a measurement device may perform multiple optical and / or non-optical metrology and / or inspection techniques.

Methods and systems for monitoring semiconductor fabrication processes are provided. A system may include a stage configured to support a specimen and coupled to a measurement device. The measurement device may include an illumination system and a detection system. The illumination system and the detection system may be configured such that the system may be configured to determine multiple properties of the specimen. For example, the system may be configured to determine multiple properties of a specimen including, but not limited to, critical dimension, a presence of defects, and a thin film characteristic. In this manner, a measurement device may perform multiple optical and / or non-optical metrology and / or inspection techniques.

An optical examination technique employs an optical system (15, 45, 100, 150, 200, 260 or 300) for in vivo, non-invasive examination of internal tissue of a subject. The optical system includes an optical module (12 or 14), a controller and a processor. The optical module is arranged for placement on the exterior of the abdomen or chest. The module includes an array of optical input ports and optical detection ports located in a selected geometrical pattern to provide a multiplicity of photon migration paths targeted to examine a selected tissue region, such as an internal organ or an in utero fetus. Each optical input port is constructed to introduce into the examined tissue visible or infrared light emitted from a light source. Each optical detection port is constructed to provide light from the tissue to a light detector. The controller is constructed and arranged to activate one or several light sources and light detectors so that the light detector detects light that has migrated over at least one of the photon migration paths. The processor receives signals corresponding to the detected light and forms at least one data set used for tissue examination.

An ultra-low magnetic field NMR system can non-invasively examine containers. Database matching techniques can then identify hazardous materials within the containers. Ultra-low field NMR systems are ideal for this purpose because they do not require large powerful magnets and because they can examine materials enclosed in conductive shells such as lead shells. The NMR examination technique can be combined with ultra-low field NMR imaging, where an NMR image is obtained and analyzed to identify target volumes. Spatial sensitivity encoding can also be used to identify target volumes. After the target volumes are identified the NMR measurement technique can be used to identify their contents.

The present invention provides for an improved scanning process with a stationary X- ray source arranged to generate X-rays from a plurality of X-ray source positions around a scanning region, a first set of detectors arranged to detect X-rays transmitted through the scanning region, and at least one processor arranged to process outputs from the first set of detectors to generate tomographic image data. The X-ray screening system is used in combination with other screening technologies, such as NQR-based screening, X-ray diffraction based screening, X-ray back-scatter based screening, or Trace Detection based screening.

Near infrared imaging using elastic light scattering and tissue autofluorescence and utilizing interior examination techniques and equipment are explored for medical applications. The approach involves imaging using cross-polarized elastic light scattering and / or tissue autofluorescence in the Near Infra-Red (NIR) coupled with image processing and inter-image operations to differentiate human tissue components.

Near infrared imaging using elastic light scattering and tissue autofluorescence and utilizing interior examination techniques and equipment are explored for medical applications. The approach involves imaging using cross-polarized elastic light scattering and / or tissue autofluorescence in the Near Infra-Red (NIR) coupled with image processing and inter-image operations to differentiate human tissue components.

An ultra-low magnetic field NMR system can non-invasively examine containers. Database matching techniques can then identify hazardous materials within the containers. Ultra-low field NMR systems are ideal for this purpose because they do not require large powerful magnets and because they can examine materials enclosed in conductive shells such as lead shells. The NMR examination technique can be combined with ultra-low field NMR imaging, where an NMR image is obtained and analyzed to identify target volumes. Spatial sensitivity encoding can also be used to identify target volumes. After the target volumes are identified the NMR measurement technique can be used to identify their contents.

A method and apparatus for imaging an eye of a patient and detecting any condition or disease in the eye. A near infrared light beam is emitted into the eye through the skin adjacent to the eye. A digital image is acquired from the light reflected from the eye. The image shows details that are not perceivable using current examination techniques. Images are acquired using more than one infrared wavelength using a multispectral illumination device for a more thorough analysis.

The invention provides a non-invasive thrombosis detector. The non-invasive thrombosis detector comprises a main control module; the main control module is connected with a light source driver module; the light source driver module is connected with two probes respectively through different channels; detection signals of the probes are transmitted back to the main control module through a data processing module; the main control module receives data of a data transmission and processing module, converts the data into hemodynamic parameters, and exchanges data with an imaging module; a power supply system supplies power to the whole device. The hemodynamic parameters are acquired through a near infrared examination technique, data is analyzed, thrombosis changing images are dynamically displayed through an imaging algorithm and are compared with symmetrical tissue detection images and a human body tissue classified imaging database, a thrombosis part is detected, the thromboembolism degree is evaluated, a thromboembolism patient is monitored in real time, and the treatment effect on the thromboembolism patient is evaluated.

The present invention relates to inspection of medical patients including, but not limited to, phonocardiography, auscultation and ultrasound medical imaging and other non-acoustical inspection techniques; and industrial non-destructive testing and evaluation of materials, structural components and machinery; and more particularly to the incorporation of cognitive artificial intelligence into an inspection system and method that utilizes cognitive mathematical techniques which emulate the cognitive processing abilities of the human brain including, but not limited to, symbolic cognitive architectures and inference process algebras, to analyze data collected from infrasound acoustical sensors (0.1 Hz-20 Hz), audible acoustical sensors (20 Hz to 20 kHz), ultrasound acoustical sensors and transmitters above 20 kHz, data collected from other non-acoustical inspection devices and systems including, but not limited to electrocardiography (EKG), computed-tomography (CT), single photon emission computed tomography (SPECT), positron emission tomography (PET), magnetic resonance imaging (MRI), electromagnetic testing (ET), magnetic particle inspection (MT or MPI), magnetic flux leakage testing (MFL), liquid penetrant, radiographic (x-ray and gamma ray), eddy-current testing, low coherence interferometry, and combinations thereof (i.e., multi-modality inspection data); fuse this data resulting in the generation of new metadata; and then utilize cognitive mathematical techniques to interpret this data against inspection signatures that characterize conditions being diagnosed. The present invention has the ability to also identify and anticipate abnormal conditions that fall outside known inspection signature patterns; and communicate the inspection results to an operator thereby simplifying the initial inspection and diagnosis for medical patients and industrial objects; minimizing false negative and false positive initial inspection results and lowering costs.

Provided is an examination technique to detect defects with high sensitivity at an outer-most repeative portion of a memory mat of a semiconductor device and even in a peripheral circuit having no repetitiveness.A circuit pattern inspection apparatus comprises an image detection unit for acquiring an image of a circuit pattern composed of multiple die having a repeative pattern, a defect judgement unit which composes, in respect of an acquired detected image, reference images by switching addition objectives depending on regions of repeative pattern and the other regions and compares a composed reference image with the detected image to detect a defect, and a display unit for displaying the image of the detected defect.

A method of comparing tire noise pitch sequences based on the tire noise generated by tire tread lug stiffness variations provides a secondary examination technique used to evaluate tire noise pitch sequences that have been selected by traditional evaluation techniques. The method includes the steps of defining the tire noise pitch sequence and the pitch lengths, calculating the differential between the arc length from an arbitrary fixed reference point to the end of each pitch length in the pitch sequence and the arc length of the mean pitch length of the number of pitches from that arbitrary reference point, and analyzing the differential to identify desirable and undesirable tire noise characteristics.

The invention relates to an FPC gold finger surface defect detection system and method based on an AOI technology. The system comprises an X-Y-Z multi-axis motion platform and a camera. A central processor carries out motion control and positioning on the platform through a motion control card. The camera carries out digital image acquisition. The central processor carries out preprocessing on theacquired image data. RIO region processing is carried out on a preprocessed image. Feature extraction is carried out on the image data, and image recognition is carried out. According to the FPC goldfinger surface defect detection system and method based on the AOI technology, which are provided by the invention, through an multi-axis operation control device and an image acquisition device, theautomatic optical inspection technology (AOI) is adopted to acquire the surface state of FPC by optical means; based on empirical mode analysis (EMD) and an HU invariant moment feature fusion method,feature extraction is carried out; the classification problems of small sample deficiency and difficult defect identifying are effectively solved; the detection efficiency is improved; and the detection cost is reduced.

This invention is within the technical field of distinguishing between natural diamond and synthetic CVD and HPHT diamonds, involves an examination technique using the Raman spectra. Procedurally, a highly sensitive Raman spectrometer (S / N>10,000) is used to scan and examine the diamond sample. The spectrometer is fitted with a tailor-made probe that has a large facula and surface area. Specially developed software is then used to perform an intensity correction and a background elimination to obtain a specific Raman spectral range (250-2800 cm−1) with the corrected intensity and a smooth baseline. Next, the Raman peak intensity of 2030 cm−1 (the post-correction and -standardization characteristic peak) is used as a basis to distinguish between natural diamond and synthetic CVD and HPHT diamonds. This method has the advantages of being non-destructive, simple, fast, and practical identification for diamonds.

A method and apparatus for imaging an eye of a patient and detecting any condition or disease in the eye. A near infrared light beam is emitted into the eye through the skin adjacent to the eye. A digital image is acquired from the light reflected from the eye. The image shows details that are not perceivable using current examination techniques. Images are acquired using more than one infrared wavelength using a multispectral illumination device for a more thorough analysis.

A method and a device for the non-destructive inspection of a rotationally symmetric workpiece having sections with different diameters by a non-destructive inspection technique, such as ultrasound, are provided. Within the context of the method, a test data set characterizing the material properties of the workpiece is generated by the inspection technique. An azimuth angle-dependent indicated value set is generated therefrom. Subsequently, a representation of the workpiece is generated, wherein the elements of the indicated value set are depicted in the representation in a spatially resolved manner. In particular, a graphic representation of the surface of the workpiece can be generated in which flaw signals are displayed that may have been found.

The invention belongs to the technical field of B-ultrasonic examination, particularly relates to a B-ultrasonic machine capable of automatically smearing a coupling agent, and aims to solve the problem that the existing coupling agent needs to be squeezed out and smeared on a probe through a forcible handheld squeezing action, and then ultrasonic examination is performed on a patient, and thus the degenerative changes of metacarpophalangeal joints, phalangeal joints and the like of the hands of an ultrasonic doctor may occur in advance. The following scheme is provided: the B-ultrasonic machine comprises a B-ultrasonic instrument which is connected with a detection box, and in the B-ultrasonic machine, the detection box is pressed to drive a contact plate to ascend so as to drive a pull rod to reciprocate in the horizontal direction; the extrusion plate continuously extrudes the second spring, the coupling agent in the second spring is finally smeared to the body surface of the patient through the through hole, then the push rod is pressed, the detection head can vertically move downwards, the detection process is achieved, the doctor does not need to extrude the coupling agent with hands any more, the burden of the doctor is relieved, the structure is simple, and operation is convenient.

The invention relates to the technical field of electronic information and particularly relates to an electronic examination system and method for teaching. The electronic examination system comprises a main server, teacher machines and student machines, wherein the main server is used for storing examination questions; the main server, the teacher machines and the student machines form a star topology structure; small-sized web servers are arranged on the teacher machines; interfaces for editing the examination questions are provided by the main server. According to the electronic examination system, interfaces for autonomously designing and editing the examination questions are provided for teachers, so that the practicability and exercising performance of the examination questions can be further improved, the dependency on professional examination question bases is reduced; by additionally arranging the small-sized web servers on the teacher machine terminals, the requirements of the main server can be reduced, and the concurrence is reduced; the examination questions are issued by virtue of the teacher machines, and the questions on the local teacher machines are downloaded by students, so that the examination question receiving speed can be increased; the examination questions are uniformly issued and collected by the teachers, so that principles of justice and equity are adequately achieved. The electronic examination system is applicable to the development requirements of electronic lesson examinations, and the traditional and complex examination technique become practical, convenient and rapid.

An optical verification method and mass transfer system described. In an embodiments, a mass transfer sequence may be accompanied by optical imaging and inspection to detect pick and place errors. The optical imaging and inspection techniques may be performed in-situ.

Provided is an examination technique that can quickly and reliably examine, from the outside of a container, whether a liquid which fills the container contains an explosive or the like, without being influenced by such things as the light transmissivity or size of the container, or the amount of liquid remaining in the container or the position of a label. In the present invention, a liquid examination device is formed by integrating the following: a near infrared-light examination device that examines whether a liquid which fills a container contains an explosive, an explosive raw material, and / or an illicit drug by projecting near infrared light into the liquid from outside of an optically transparent container, receiving the near infrared light which passed through the liquid or the near infrared light which was scattered by the liquid, and analyzing the absorption spectrum of such light; and an ultrasonic wave examination device that examines whether a liquid which fills a container contains an explosive, an explosive raw material, and / or an illicit drug by receiving the reflected waves of ultrasonic waves projected towards the liquid from outside of a metal container, and analyzing the ultrasonic wave speed of such waves.

The invention discloses a blood examination auxiliary system, and belongs to the technical field of blood routine examination. The blood examination auxiliary system comprises a scanning subsystem, an analysis subsystem and a browsing subsystem; the scanning subsystem is used for obtaining the images of each visual field in a blood smear; the analysis subsystem is used for identifying and classifying the images acquired in the scanning subsystem and generating an auxiliary screening report; and the browsing subsystem is used for observing the results generated by the scanning subsystem and the analysis subsystem. According to the scheme, the blood cell classification accuracy is high, and deep learning comprehensively exceeds a traditional mode recognition method and a machine learning method at the aspect of image recognition.

The invention discloses a traditional Chinese and western medicine combined neurology examination bed, and belongs to the technical field of internal medicine examination, the examination bed comprises a bed body, support legs are fixedly mounted at four corners of the bottom of the bed body, a transmission groove is formed in the top of the bed body, and a plurality of assembly seats are adjustably connected in the transmission groove; the bottom of the assembling base is in limiting connection with the transmission groove through an assembling mechanism. According to the device, the limiting plate can slide in the bottom transmission groove through the second sliding block, the limiting angle can be adjusted according to the requirement of the detached part of the patient after the limiting plate moves, self-adaptive adjustment can be achieved through cooperation of the first spring and the telescopic rod, and the bending deviation limiting requirement of the to-be-detected part of the patient is met; only the peripheral side of the insertion part of the patient is limited and supported through the limiting plate, the discomfort of the patient caused by excessive limiting is reduced, meanwhile, shielding of the limiting part is reduced, acupuncture or knocking feedback testing is facilitated, and the testing processing difficulty is reduced.

The invention belongs to the field of mammary gland ultrasound, and particularly relates to a mammary gland ultrasonic diagnosis device. The mammary gland ultrasonic diagnosis device comprises a base;a lifting support used for adjusting the height of an examination table is installed on the base; an inwardly concave containing groove is fixed to the examination table; a stepping motor is installed at the bottom end of the interior of the containing groove; the output end of the stepping motor is provided with an automatic scanning inspection disc matched with the containing groove in specification; a chest plate positioning disc is placed in the automatic scanning inspection disc; and the upper portion of the chest plate positioning disc is connected with a chest plate. The prone positionis more beneficial to protecting the privacy of an examinee, breast pressing is conducted through the self-weight of the body, examination is more comfortable, a doctor does not need to conduct manual examination, and the hands of the doctor are liberated. Automatic scanning does not need to depend on examination techniques of the doctor, and patient examination can be achieved through simple positioning. The examination process is standardized, only one technician is needed to be responsible for scanning, the doctor can concentrate time to read films and diagnose in the background, and the film reading time flexibility is improved.

The invention discloses application of a cardiac magnetic resonance imaging (MRI) examination technology. The cardiac magnetic resonance imaging technology includes an electrocardiographic synchronization technology and a respiratory synchronization technology; the selection of cardiac magnetic resonance scanning layers includes cross-sectional imaging, coronal plane imaging, vertical plane imaging, a left ventricle long axis position, left anterior oblique position and left ventricle short axis position parallel to the ventricular septum, and a left ventricle long axis and four-chamber heartposition perpendicular to the ventricular septum; and a cardiac vessel scanning sequence includes magnetic resonance cardiac cine imaging, helical scanning and cardiac examination impulse sequence. The MRI examination technology has the advantages of comprehensively providing the guidance use flows of MR model Siemens Aera1.5T and cardiac MR model GE750w, and being simple and easy to understand.

A method and a device for the non-destructive inspection of a rotationally symmetric workpiece having sections with different diameters by a non-destructive inspection technique, such as ultrasound, are provided. Within the context of the method, a test data set characterizing the material properties of the workpiece is generated by the inspection technique. An azimuth angle-dependent indicated value set is generated therefrom. Subsequently, a representation of the workpiece is generated, wherein the elements of the indicated value set are depicted in the representation in a spatially resolved manner. In particular, a graphic representation of the surface of the workpiece can be generated in which flaw signals are displayed that may have been found.

The invention relates to the technical field of ultrasonic examination, in particular to an auxiliary device for ultrasonic examination, which comprises a first bed board frame, one end of the first bed board frame is movably connected with a damping rotating shaft, and one end of the first bed board frame is movably connected with a second bed board frame through the damping rotating shaft. And examination mattresses are movably connected to the interiors of the first bed board frame and the second bed board frame. Through the arrangement of the first bed board frame, the damping rotating shaft, the second bed board frame, the examination mattress, a folding strip, a T-shaped groove, a movable plate, a T-shaped block, a movable frame, an adjusting groove, a supporting bottom frame, a first spring rod and an electric push rod, medical workers are assisted in more stable whole-body ultrasonic examination work of a patient; a worker firstly lies a patient needing to be examined on the surface of the examination mattress, and then the electric push rod at the bottom of the second bed board frame is started, so that the electric push rod drives the second bed board frame to integrally perform upward lifting operation.

The invention discloses an ophthalmic examination system, and relates to the technical field of ophthalmic examination. The ophthalmic examination system comprises a workbench, the upper surface of the workbench is fixedly connected with a fixed plate, the side surface of the fixed plate is fixedly connected with two support plates, the surface of a slide block is rotatably connected with a gear through a fixed shaft, the side surface of a movable plate is fixedly connected with a pressing component, a second rack row is connected with a sleeve block through an elastic component, the side surface of the movable plate is slidably connected with a baffle, the baffle abuts against a first rack row, and a second connecting plate is jointly hinged between the baffle and the second rack row. According to the ophthalmic examination system, the effects that a hydraulic cylinder drives a push plate and two push rods to move continuously, then two elastic pieces in two auxiliary components are driven to firstly abut against the eyes of a user, then the two movable plates are driven to move upwards or downwards, so that the two elastic pieces move upwards or downwards to open the eyelids of the user, the eyelids do not need to be opened with hands in the whole process, and bacteria on the hands are prevented from entering the eyes to cause infection, and the inspection safety is ensured are achieved.

The invention discloses a medical clinical examination device convenient to operate. The medical clinical examination device comprises a mounting plate, wherein a backup plate is fixedly connected to the lower end face of the rear side of the mounting plate, a first electric telescopic rod is fixedly connected to the middle of the lower end of the front end face of the inner side of the mounting plate, a transverse moving plate is fixedly connected to the output end of the first electric telescopic rod, a first motor is fixedly connected to the right side of the upper end face of the transverse moving plate, a first threaded rod is fixedly connected to the output end of the first motor, a lifting block is slidably connected to the exterior of the first sliding rod, and a first threaded block is in threaded connection to the exterior of the first threaded rod. The invention relates to the technical field of medical clinical examination. According to the medical clinical examination device convenient to operate, the problems that oral cavities of patients with different mouth widths and different tooth shapes are inconvenient to expand, heads of patients with different heights and different head widths are inconvenient to fix, and discomfort is caused due to the fact that a large included angle is formed between the upper body and the legs of the patients in medical clinical examination are solved.