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conference on Emerging Technologies in Security and Defence;and Quantum Security II;and Unmanned sensor Systems X

作者： Tosi, Alberto Zappa, Franco Politecn Milan Dip Elettron Informaz & Bioingn I-20133 Milan Italy

ISBN: (纸本)9780819497680

This paper reports the achievements so far attained in the development of high-performance CMOS SPADs for single-photon sensitive 2D imagers, based on photon-counting and 3D ranging cameras. The latters are based on both the direct in-pixel measurement of the Time-of-Flight of each photon bouncing bounce from the scene back to the camera and the "indirect" phase-resolved method to count reflected photons in well-defined time slots, synchronous to the active illumination of the scene. MiSPiA SPADs are the new state-of-the-art among SPADs in CMOS technologies.

关键词： Single Photon Avalanche Diode (SPAD) 3D ranging photon counting Time-of-Flight (TOF)

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CMOS Computational Pixel for Binary Temporal Optically Encoded High-Speed Imaging

CMOS Computational Pixel for Binary Temporal Optically Encod...

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IEEE International conference on Electron Devices and solid-state Circuits (EDSSC)

作者： Luo, Yi Guo, Nan Mirabbasi, Shahriar Ho, Derek Univ British Columbia Dept Elect & Comp Engn Vancouver BC Canada City Univ Hong Kong Dept Phys & Mat Sci Hong Kong Hong Kong Peoples R China

ISBN: (纸本)9781509018307

Computational imaging has recently attracted much attention due to its excellent potential in delivering advanced capabilities such as motion deblurring and high-speed compressive sensing. However, the development of computational cameras has been limited by the lack of a technology that can efficiently support temporal encoding. Conventionally, temporal encoding is performed by complicated off-chip optics such as split light modulators (SLMs). This results in camera systems with large physical sizes, performance degradation, and high power consumption. In this paper, we propose a complementary metal-oxide-semiconductor (CMOS) pixel design that performs temporal optical binary encoding for on-chip, high-speed computational imaging applications. Compared to conventional high-speed imaging techniques, the proposed CMOS computational pixel is a promising approach for on-chip temporal encoding, enabling simpler camera optics and reduced power consumption.

关键词： Computational imaging temporal binary encoding coded Exposure CTIA pixel CMOS image sensor

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A novel flip-chipped integrated single photon detection platform for proteomics

A novel flip-chipped integrated single photon detection plat...

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conference on Optics and Photonics Technologies and applications

作者： Jackson, JC West, J Moloney, AM O'Connell, D Morrison, AP Mathewson, A Natl Univ Ireland Univ Coll Cork NMRC Cork Ireland

ISBN: (纸本)0819446572

Novel integrated sensors will be-required for future detection platforms for the measurement of fluorescence and luminescence. The current trend towards integration of optical detectors and the broad advances in optical emitting dyes and proteins will be combined in robust;low-cost, point-of-use, diagnostic equipment. To this end we are experimenting with an integrated optical hybrid sensing device which will combine a flip-chipped, array of solid-state single photon counting detectors with surface mount passive quench circuits on a conventional glass substrate. This flip-chipped arrangement both 1) increases the speed of response of the detector and 2) increases the robustness and ease.-of integration and reduces single photon detector handling requirements. The potential of integrated solid-state photon detectors will be demonstrated for the real-time quantitative detection of luciferase, a light. emitting protein expression reporter molecule. A 15[cm solid-state Geiger-mode avalanche photodiode (APD) operating in single photon counting mode will be compared with a standard photomultiplier tube (PMT) for luciferase luminescence detection. Detection levels of 2 x 10(6) and 1 x 10(7) enzyme molecules will be demonstrated for PMT and Geiger-mode APD respectively. The size of the Geiger-mode APD active area will be shown to be the limiting factor in luciferase signal detection for non-integrated applications. A simple geometric model will show hat detection limits of 1 x 10(4) are achievable in integrated sensing platforms using room temperature operated single photon counting detectors.

关键词： Geiger-mode APD avalanche photodiode GM-APD APD pn diode flip-chip detector arrays proteomics genomics

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THE MULTIELEMENT MERCURIC IODIDE DETECTOR ARRAY WITH COMPUTER-CONTROLLED MINIATURIZED ELECTRONICS FOR EXAFS

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IEEE TRANSACTIONS ON NUCLEAR SCIENCE 1995年第4期42卷 558-564页

作者： PATT, BE IWANCZYK, JS SZCZEBIOT, R MACULEWICZ, G WANG, M WANG, YJ HEDMAN, B HODGSON, KO COX, AD STANFORD SYNCHROTRON RADIAT LAB STANFORDCA 94309 STANFORD UNIV DEPT CHEMSTANFORDCA 94305

Construction of a 100-element HgI2 detector array, with miniaturized electronics, and software developed for synchrotron applications in the 5 keV to 35 keV region has been completed. Recently, extended x-ray absorption fine structure (EXAFS) data on dilute (similar to 1mM) metallo-protein samples were obtained with up to seventy-five elements of the system installed. The data quality obtained is excellent and shows that the detector is quite competitive as compared to commercially available systems. The system represents the largest detector array ever developed for high resolution, high count rate x-ray synchrotron applications. It also represents the first development and demonstration of high-density miniaturized spectroscopy electronics with this high level of performance. Lastly, the integration of the whole system into an automated Computer-controlled environment represents a major advancement in the user interface for XAS measurements. These experiments clearly demonstrate that the HgI2 system, with the miniaturized electronics and associated computer control functions well. In addition it shows that the new system provides superior ease of use and functionality, and that data quality is as good as or better than with state-of-the-art cryogenically cooled Ge systems.

关键词： sensor arrays Synchrotrons Application software Electromagnetic wave absorption X-ray detection X-ray detectors Spectroscopy User interfaces Automatic control Control systems

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Scaling of 4H-SiC p-i-n Photodiodes for High Temperature applications 75

Scaling of 4H-SiC p-i-n Photodiodes for High Temperature App...

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75th Annual Device Research conference (DRC)

作者： Hou, Shuoben Hellstrom, Per-Erik Zetterling, Carl-Mikael Ostling, Mikael KTH Royal Inst Technol Kistagangen 16 SE-16440 Kista Sweden

ISBN: (纸本)9781509063284

Ultraviolet (UV) detection is important in astronomy, combustion detections and medical analysis. solid-state UV detectors based on wide band gap semiconductors, such as 4H-SiC, are widely studied because of their excellent electrical properties [1]. 4H-SiC based UV detectors are solar blind and can be applied in extremely high temperature environments [2]. However, the state-of-art 4H-SiC photodetectors still have large sizes (>10000 μm²), which are not suitable to be integrated into high resolution UV photography sensors. To build a full-frame UV imaging sensor containing megapixels, photodiodes smaller than 20 μm by side are necessary. Here, we report the fabrication and characterization of 4H-SiC p-i-n photodiodes with mesa areas scaled from 40000 μm² to 400 μm². The relationships between the parameters and the areas of the photodiodes are discussed. The photodiodes are fully functional from room temperature (RT) to 500 °C.

关键词： Estimation Field programmable gate arrays OFDM Modulation Filtration Clocks Signal processing algorithms

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A Run-time Temperature Monitoring with Adaptive Duty Cycle Control for FPGA applications 17

A Run-time Temperature Monitoring with Adaptive Duty Cycle C...

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17th IEEE International conference on solid-state and Integrated Circuit Technology, ICSICT 2024

作者： Li, Weizhi Chen, Wangyong Chen, Haifeng Zhang, Haoyu Cai, Linlin School of Microelectronics Science and Technology Sun Yat-sen University Guangzhou510275 China

ISBN: (纸本)9798350361834

To assist dynamic thermal management in FPGA based prototype system, this paper proposes a run-time temperature monitoring solution utilizing ring oscillators to monitor the temperature on different modules of FPGA projects and construct visual thermal maps of the full chips in HOST. To reduce the thermal overhead of the sensors based on ring oscillators, this paper proposes a feedback-driven adaptive duty cycle control technique and provides an indicator to quantify the cooling performance of this technique. Furthermore, the performance of monitoring system in terms of the thermal overhead, resolution and sensitivity of the configurable sensor network is comprehensively analyzed by experiments. © 2024 IEEE.

关键词： Field programmable gate arrays (FPGA)

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Wireless integrated microsystems: Wearable and implantable devices for improved health care

Wireless integrated microsystems: Wearable and implantable d...

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TRANSDUCERS 2009 - 15th International conference on solid-state sensors, Actuators and Microsystems

作者： Wise, Kensall D. Engineering Research Center for Wireless Integrated MicroSystems Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI 48109-2122 United States

ISBN: (纸本)9781424441938

Integrated sensors based on microelectronic technology were first developed in the late 60s for medical applications. Today they have evolved into wireless integrated microsystems (WIMS), combining micropower circuits, wireless interfaces, hermetic packaging, embedded power sources, and MEMS. Such devices are poised to provide important breakthroughs in health care. This paper traces the development of medical microsystems by looking at three of its earliest devices. Catheter-tip pressure sensors have evolved into smart stents and wireless intraocular monitors;wristwatch-size gas chromatography systems are emerging for the rapid identification of biomarkers for in breath;and neural interfaces are permitting revolutionary advances in neuroscience and in prostheses for deafness, blindness, epilepsy, paralysis, Parkinson's disease, and other disorders. The present status and remaining challenges in such devices will be described. ©2009 IEEE.

关键词： Medical applications

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ZnO Surface Acoustic Wave sensor for the enhanced detection of DMMP

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6th International conference on Materials for Advanced Technologies (ICMAT) / Symposium on Microwave in Science and Engineering applications

作者： Raj, V. Bhasker Tomar, Monika Nimal, A. T. Parmar, Yashoda Sharma, M. U. Gupta, Vinay Univ Delhi Dept Phys & Astrophys Delhi 110007 India Solid State Phys Lab Delhi 110054 India

ISBN: (纸本)9783037853658

This article reports the development of ZnO coated one port Surface Acoustic Wave (SAW) resonators for the detection of DMMP (dimethyl methyl phosphonate), a simulant of chemical warfare agent Sarin at room temperature. For enhanced sensitivity high frequency SAW devices (433Mhz) were used. Frequency shift with DMMP exposure was found to increase with increase in thickness of ZnO film from 20 to 80 nm with maximum shift of 52 kHz. The cross sensitivity of the sensor with commonly available volatile organic compounds (VOCs), gases and water vapors has been performed and was found that the sensitivity towards other interferants is very less as compared to that of DMMP vapors. The sensing mechanism has been explained in detail. It has been shown that there was no significant change in the resistance of the film with exposure to DMMP vapors and hence the contribution of the acoustoelectric interaction is negligible. Further mass loading was not dominant. The negative differential frequency shifts proved that change in elasticity of the film with exposure to DMMP vapors is the dominant sensing mechanism.

关键词： SAW DMMP Elastic effects Resonator

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Design of security detection digital sensor system based on FPGA 16

Design of security detection digital sensor system based on ...

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16th IEEE International conference on solid-state and Integrated Circuit Technology, ICSICT 2022

作者： Li, Dejian Zhao, Xu Zhang, Jiaming Li, Zonglin Hu, Jiajie Yang, Yuanhui Liu, Dongsheng Li, Hai Beijing Smart-Chip Microelectronics Technology Co. Ltd. State Grid Key Laboratory of Power Industrial Chip Design and Analysis Technology China Huazhong University of Science and Technology School of Optical and Electronic Information Wuhan China Co. Ltd. China

ISBN: (数字)9781665469067

ISBN: (纸本)9781665469067

Under complex or strategic environmental conditions, the chip may be exposed to man-made malicious attacks or harsh environment, resulting in internal circuit damage and disastrous consequences. In order to carry out high-level security detection on the chip, sensors need to be used to sense the working conditions such as temperature, voltage and frequency of the chip. This paper designs a security detection digital sensor system based on FPGA. The system is composed of highly optimized digital standard cell library, which can greatly reduce the research and development costs and tape out risk. The digital circuit has an accurate look-up table, so the measurement results are more accurate. By quantifying the amplitude of clock delay on the delay chain, when the working conditions of the circuit are abnormal, the security detection system can accurately detect the fault and give an alarm. © 2022 IEEE.

关键词： Field programmable gate arrays (FPGA)

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5.5 Dual-Tap Pipelined-Code-Memory Coded-Exposure-Pixel CMOS Image sensor for Multi-Exposure Single-Frame Computational Imaging

5.5 Dual-Tap Pipelined-Code-Memory Coded-Exposure-Pixel CMOS...

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2019 IEEE International solid-state Circuits conference, ISSCC 2019

作者： Sarhangnejad, Navid Katic, Nikola Xia, Zhengfan Wei, Mian Gusev, Nikita Dutta, Gairik Gulve, Rahul Haim, Harel Garcia, Manuel Moreno Stoppa, David Kutulakos, Kiriakos N. Genov, Roman University of Toronto Toronto Canada Synopsys Toronto Canada Fondazione Bruno Kessler Trento Italy Ams AG Ruschlikon Switzerland

ISBN: (纸本)9781538685310

Modern computational photography applications such as 3D sensing, gesture analysis, and robotic navigation drive the growing need for programmability, or coding, of the camera exposure at the individual-pixel level. Unlike conventional cameras, which record all light incident onto a pixel, the emerging class of coded-exposure-pixel (CEP) cameras can be programmed to selectively detect only some of that light [1] or, better, sort all of the light [2, 3], depending on the pixel code. In conjunction with a concurrently coded illumination, this enables a wide range of new coded multi-exposure single-readout-frame imaging capabilities at video rates. This work demonstrates such an image sensor where multiple pixel-wise-coded exposures, or subframes, are accumulated during one video frame. © 2019 IEEE.

关键词： Pixels

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