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检索条件"任意字段=Conference on Solid State Sensor Arrays - Development and Applications"

共 1073 条记录，以下是361-370 订阅

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In-Tube-Center Packaging of Flexible MEMS Airflow-Rate sensor and Its Sensitivity Enhancement 22

In-Tube-Center Packaging of Flexible MEMS Airflow-Rate Senso...

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22nd International conference on solid-state sensors, Actuators and Microsystems, Transducers 2023

作者： Al Farisi, Muhammad Salman Wang, Yang Hasegawa, Yoshihiro Matsushima, Miyoko Kawabe, Tsutomu Shikida, Mitsuhiro Hiroshima City University Hiroshima Japan Nagoya University Nagoya Japan

ISBN: (纸本)9784886864352

Micro-electro mechanical systems (MEMS) thermal flow sensors have been widely utilized for a wide spectrum of applications. Innovative fabrication processes using polymers have resulted in the development of their flexible alternatives which allowed mounting in a wider range of situations. To accurately measure airflow-rate using a MEMS flow sensor, the airflow region has to be defined and encapsulated. In this study, we propose a facile packaging method of flexible MEMS airflow-rate sensor. The thermal sensing structure was fabricated on a flexible polyimide film. The film was inserted into a resin tube through its taper-cut end and fixed at the center of the tube taking advantage of its buckling. Sensitivity and response speed enhancement were demonstrated by limiting the thermal loss to the substrate by introducing a sensor structure with double-layer substrate. © 2023 IEEJ.

关键词： Airflow-Rate sensor Flexible Device Packaging Thermal sensor

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A low-cost 64x64 uncooled infrared detector array in standard CMOS 12

A low-cost 64x64 uncooled infrared detector array in standar...

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12th International conference on solid-state sensors, Actuators and Microsystems (TRANSDUCERS 03)

作者： Eminoglu, S Tanrikulu, MY Akin, T Middle E Tech Univ Dept Elect & Elect Engn TR-06531 Ankara Turkey

ISBN: (纸本)0780377311

This paper reports the development of a low-cost, 64 x 64 uncooled infrared focal plane array (FPA) based on suspended and thermally isolated p(+)-active/n-well diodes in a standard 0.35 mum CMOS process. The array is implemented using a simple post-CMOS process that do not require any critical lithography or complicated deposition steps. The pixel is 40 mum x 40 mum in size with a fill factor of 44%, and it has a measured DC responsivity of 4970 V/W with a thermal time constant of 36 msec at 80 mToff vacuum. The detector noise is measured as 0.52 muV for a 4 kHz electrical bandwidth with a 1/f corner frequency of 4.4 Hz, resulting in a measured detectivity of 9.7 x 10(8) cmHz(1/2)/W and an estimated NETD value of 470 mK for an f = 1 optics. The FPA is scanned at 30 fps using a 16-channel parallel readout circuit with low noise preamplifiers. The preampliers have a measured noise of 0.48 muV, resulting in an overall estimated NETD of 800 mK, which can be decreased by increasing the number of parallel readout channels. The uncompensated pixel voltage non-uniformity is measured as 0.82%, which easily decreases down to 0.05% by compensating the fixed pattern noise. Considering its simple fabrication method and its moderate performance, this approach is suitable for low-cost commercial infrared imaging applications.

关键词： Circuit noise Diodes Electric variables measurement Frequency estimation Frequency measurement Infrared detectors Noise measurement Optical noise Preamplifiers sensor arrays

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Design of a compact semiconductor laser wind sensor

Design of a compact semiconductor laser wind sensor

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conference on Lidar and Atmospheric Sensing

作者： KEIPERT, A GIGGENBACH, D GERMAN AEROSP RES ESTAB INST TELECOMMUN TECHNOLOBERPFAFFENHOFENGERMANY

ISBN: (纸本)0819418633

This paper focuses on the development of very compact remote sensing systems. Accurate wind sensing plays an important role in aviation. Near term applications include: air data sensors, wind shear detection, and performance measurement. Future applications extend to space, utilizing satellites for sensing global and regional winds. These applications require practical solutions that are ultra-reliable, utilize minimal space, cooling, and power and are easily integrated into the parent system. This paper describes design approaches that can be adapted for use with rapidly advancing coherent and eyesafe semiconductor laser technology. These coherent sources have demonstrated over one watt and are commercially available. Results of hardware development using cw solid state lasers for coherent detection while utilizing internal fiber reflections as the local oscillator signal are presented. Finally, future activities are outlined.

关键词： sensors Semiconductor lasers LIDAR Doppler effect Fiber couplers Fiber optics sensors Laser development Oscillators Laser applications Remote sensing

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System on Chip Generation for Multi-sensor and sensor Fusion applications 17

System on Chip Generation for Multi-Sensor and Sensor Fusion...

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17th Annual International conference on Embedded Computer Systems - Architectures, Modeling, and Simulation (SAMOS)

作者： Lieske, Tobias Pfundt, Benjamin Vaas, Steffen Reichenbach, Marc Fey, Dietmar Friedrich Alexander Univ Erlangen Nurnberg FAU Chair Comp Architecture Dept Comp Sci Erlangen Germany

ISBN: (纸本)9781538634370

The amount of smart devices in our daily lives has dramatically increased. Many of these devices include sensors to capture their environment and communicate with other devices, forming the internet of things (IoT). A similar process of increasing intercommunication and digitization can be seen in industry where this development is called Industry 4.0. In this new era there is a strong demand for new computing architectures that fulfill the tight energy constraints as well as deliver enough on-chip processing performance. Off-the-shelf microcontrollers do not suffice both requirements as the power to performance ratio is too high. One solution are system on chip (SoC) architectures with domain specific application specific processors (ASIP). However, this new and competitive market requires a strongly reduced time to market. Thus, it is necessary to speed up the design process and deliver enough flexibility to adapt to new applications. Therefore, we propose a new SoC generation framework, which is based on an ASIP architecture. Architectural templates can be combined with existing intellectual property (IP) components, high-level synthesis (HLS) or hardware description language (HDL) code to speed up the design process. Both field programmable gate array (FPGA) and application specific integrated circuit (ASIC) back ends are supported. The architecture targets primarily multi-sensor and sensor fusion applications. A customizable MIPS processor with an adaptable compiler toolchain ensures interoperability in standard networks. The capabilities of our SoC architecture is demonstrated on two real world problems, including a performance demanding power quality monitoring application and a low-power swimming exercise tracking applications. Results show that the application constraints can be easily fulfilled while increasing speed and flexibility in the design process.

关键词： IoT SoC generation MIPS power quality monitoring biosignal processing

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New highly-efficient laser bars and laser arrays for 8xx-10xx nm pumping applications

New highly-efficient laser bars and laser arrays for 8xx-10x...

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conference on High-Power Diode Laser Technology and applications XII

作者： Pietrzak, A. Huelsewede, R. Zorn, M. Hirsekorn, O. Sebastian, J. Meusel, J. Bluemel, V. Hennig, P. JENOPTIK Diode Lab GmbH Max Planck Str 2 D-12489 Berlin Germany JENOPTIK Laser GmbH D-07745 Jena Germany

ISBN: (纸本)9780819498786

High-power laser bars and laser arrays are attractive light sources for many industrial applications such as direct material processing or as pump sources for solid state and fiber lasers. There is also a great interest in quasi-CW laser bars for laser ignition and fusion applications. These applications require a continuous improvement of laser diodes for reliable operation at high output powers densities and simultaneously high electrical-to-optical efficiencies. JENOPTIK presents an overview of recent progress in the development of highly efficient CW and quasi-CW laser devices emitting in a wide wavelength range between 880 nm and 1020 nm. Laser arrays emitting in the wavelength range 915 nm to 976 nm exhibit very high efficiencies above 65%. Our technology of new generation 940 nm high fill-factor bars has been currently extended to emission wavelength of 1020 nm with excellent results: 200 W output power with 63% efficiency using passively cooled heatsinks. Additionally, performances of high brightness low fill-factor laser bars with resonator lengths of 4 mm are shown. The innovative design of the laser structure enables, moreover, the realization of 500 W - 880 nm quasi-CW laser bars with wall-plug efficiencies of 55% and a narrow fast-axis divergence angle of 40 degrees (95% power content).

关键词： laser diode laser array laser bar high-power high-efficiency 1020 nm 940 nm reliability

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Reconfigurable Embedded Systems applications for Versatile Biomedical Measurements 20

Reconfigurable Embedded Systems Applications for Versatile B...

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20th conference and Exhibition on Design, Automation and Test in Europe (DATE)

作者： Cerina, Luca Santambrogio, Marco D. Politecn Milan Dipartimento Elettron Informat & Bioingn Milan Italy

ISBN: (纸本)9783981537093

Nowadays, the majority of the monitoring devices used in clinical settings is limited to specific applications and powered by highly specialized microcontrollers and pre-programmed DSP systems. Moreover, these kind of devices are usually connected to a high capacity battery to operate in case of power blackout. Nevertheless, considering that all the measured bio-signals depends from an amperometric or potentiometric transducer, it should be viable to integrate them on a single device with multiple probes, reprogrammable sensor-fusion capabilities and on-board signal processing. Within this context, in this paper, we present a design concept for such a device. Exploiting FPGA reconfigurability, various analog front-ends can be connected to the device and configured to return the measured signal or the output of the desired signal processing to the user. Multiple case studies with different sensors and end-user applications are described. The high degree of parallelism and the reduced frequency of the embedded FPGA coprocessor make it suitable for all the applications that are subject to medium/low power and cost constraints such as portable Point-of-Care devices or emergency medical centers.

关键词： Field programmable gate arrays sensors Batteries Electrocardiography Electromyography Biomedical monitoring Power demand

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Photoactivatable silanes for the site-specific immobilization of antibodies

Photoactivatable silanes for the site-specific immobilizatio...

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1st SPIE conference on Microfabricated and Nanofabricated Electro-Optical Mechanical Systems for Biomedical and Environmental applications

作者： Conrad, DW Davis, AV Golightley, SK Bart, JC Ligler, FS Naval Research Lab. (United States) GEO-CENTERS Inc. (United States) American Society for Engineering Education (United States)

ISBN: (纸本)0819423890

The development of techniques which can be used for the discrete immobilization of multiple antibodies on solid supports has important applications in the areas of clinical diagnostics, drug discovery, and biosensor development.(1-9) While photolithography has provided many elegant methods for generating spatially-resolved reactive surface functionalities, the problem of nonspecific adsorption of proteins which occurs during sequential immobilization steps continues to hamper the development of antibody sensing arrays. This nonspecific adsorption prevents the establishment of unique and individually-addressable binding sites on the substrate surface. In as effort to solve this problem, we have synthesized and characterized a series of photoactivatable silanes which can be used for the tight-directed attachment of antibodies to solid supports. These compounds produce amine-reactive functional groups upon irradiation with UV light. The first silane derivative prepared yielded a relatively hydrophobic surface when it was used for substrate modification. The resultant surface exhibited a high degree of nonspecific protein adsorption even in the absence of light activation. We therefore decided to synthesize a more hydrophilic analog. This second derivative displayed low nonspecific protein binding even in the absence of detergents or protein blocking agents. We have used this second compound to discretely immobilize four different IgG antibodies (each directed against a different antigen) on several hydroxyl-bearing substrates. Antigen binding experiments using fluorescent and I-125-labeled antigens have confirmed that the immobilized antibodies retain their functionalities.

关键词： antibody immobilization array biosensor immunochemical sensor photoactivatable photoimmobilization photopatterning silane

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ESSCIRC 2010 - 36th European solid state Circuits conference

ESSCIRC 2010 - 36th European Solid State Circuits Conference

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36th European solid state Circuits conference, ESSCIRC 2010

ISBN: (纸本)9781424466641

The proceedings contain 123 papers. The topics discussed include: high performance mixed signal: business and technology;3D integration technology: status and application development;engineering hope with biomimetic microelectronic systems;energy harvesting - from devices to systems;technical and economical trends in wireless applications;terahertz imaging with CMOS/BICMOS process technologies;analog mixed-signal circuits in advanced nano-scale CMOS technology for microprocessors and SOCs;trends and perspectives for electrical characterization and reliability assessment in advanced CMOS technologies;a 65-nm CMOS temperature-compensated mobility-based frequency reference for wireless sensor networks;variability analysis of a digitally trimmable ultra-low power voltage reference;and a nano-ampere current reference circuit and its temperature dependence control by using temperature characteristics of carrier mobilities.

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CCD based guiding sensor resolution enhancement

CCD based guiding sensor resolution enhancement

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conference on Digital solid state Cameras - Designs and applications

作者： Sobotka, M Prochazka, I Hamal, K Blazej, J Charles Univ Fac Math & Phys Dept Elect & Vacuum Phys CR-18000 Prague 8 Czech Republic

ISBN: (纸本)081942742X

The paper presents the achievements in research and development of the compact optical CCD based guiding system. The ultimate goal of the project is a modest size, low mass and rugged system to be applied for subarcsecond optical Ground-Space guiding and tracking. The system includes the optics, the CCD sensor with the readout and an image-processing algorithm. The optics consists of a diffraction limited objective, four-element lens system with the effective input aperture 90 millimeters. The objective focal length 300 mm is extended by the additional relay optics. The resulting effective focal length is 3000 millimeters, the focal spot size is 65 micrometers Airy disc diameter. The combination of the diffraction limited objective design, focal extender and mechanical construction permitted to keep the overall length bellow 600 millimeters and the total mass bellow 5 kilograms while maintaining high ruggedness at one are-second level. A sensor, the Texas Instrument CCD chip 192x164 pixels, 15 micrometers size is used. The custom designed readout and data processing hardware has been developed. Parallel communication maintains image download time 0.6 second with 12 bits amplitude resolution. The data acquisition and image processing software package running under MS Windows 95 or NT provide all functions for the camera control, data acquisition and image processing for precise target position evaluation. The position is evaluated as the centre of mass of square neighbourhood of the brightest CCD pixel. Indoor test of the ultimate position resolution using different diffraction limited images and sizes are described. The image position resolution +/- 0.03 pixel has been achieved. It corresponds to 0.03 are seconds of angular resolution of the entire guiding sensor.

关键词： optical guiding remote tracking control CCD

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Quantum efficiency and dark current evaluation of a backside illuminated CMOS image sensor

Quantum efficiency and dark current evaluation of a backside...

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International conference on solid state Devices and Materials (SSDM 2014)

作者： Vereecke, Bart Cavaco, Celso De Munck, Koen Haspeslagh, Luc Minoglou, Kyriaki Moore, George Sabuncuoglu, Deniz Tack, Klaas Wu, Bob Osman, Haris IMEC B-3001 Leuven Belgium Poongsan Corp CA Branch Sunnyvale CA 94085 USA

We report on the development and characterization of monolithic backside illuminated (BSI) imagers at imec. Different surface passivation, anti-reflective coatings (ARCs), and anneal conditions were implemented and their effect on dark current (DC) and quantum efficiency (QE) are analyzed. Two different single layer ARC materials were developed for visible light and near UV applications, respectively. QE above 75% over the entire visible spectrum range from 400 to 700nm is measured. In the spectral range from 260 to 400nm wavelength, QE values above 50% over the entire range are achieved. A new technique, high pressure hydrogen anneal at 20 atm, was applied on photodiodes and improvement in DC of 30% for the BSI imager with HfO2 as ARC as well as for the front side imager was observed. The entire BSI process was developed 200mm wafers and evaluated on test diode structures. The knowhow is then transferred to real imager sensors arrays. (C) 2015 The Japan Society of Applied Physics

关键词： Quantum efficiency

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