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ARCADIA MAPS process qualification through the electrical characterization of passive pixel arrays

JOURNAL OF INSTRUMENTATION 2023年第2期18卷 C02045页

作者： Corradino, T. Betta, G. F. Dalla Neubuser, C. Pancheri, L. Univ Trento Dept Ind Engn Via Sommar 9 Trento Italy TIFPA INFN Via Sommar 14 Trento Italy

The development of novel Monolithic Active Pixel sensor (MAPS) technologies has been pursued by several collaborations in the last two decades. The ARCADIA project aims to design fully depleted MAPS for medical, space, HEP and X-ray detection applications, that can be produced with a commercial 110 nm CMOS production process. Among the test structures of the first two engineering runs of the project, passive pixel arrays with different pitches and layouts were included. The main characteristics of the produced devices in terms of dark current, depletion voltage, punch through current and pixel capacitance have been evaluated from IV and CV characteristics of the pixel arrays. Groups of four samples have been extracted from as many different positions within each wafer and electrically characterized to obtain information on the variability in the pixel operating voltage range and in the pixel dark current, reflecting variations related to the employed production process. The experimental data demonstrated a good uniformity in the considered parameters for different sample positions within the produced wafers, as well as for samples extracted from different wafers with the same substrate type.

关键词： Detector design and construction technologies and materials solid state detec-tors Detector modelling and simulations II (electric fields charge transport multiplication and induction pulse formation electron emission etc )

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High-precision and low-latency widefield diamond quantum sensing with neuromorphic vision sensors

arXiv

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arXiv 2023年

作者： Du, Zhiyuan Gupta, Madhav Xu, Feng Zhang, Kai Zhang, Jiahua Zhou, Yan Liu, Yiyao Wang, Zhenyu Wrachtrup, Jörg Wong, Ngai Li, Can Chu, Zhiqin Department of Electrical and Electronic Engineering The University of Hong Kong Hong Kong School of Science and Engineering The Chinese University of Hong Kong Shenzhen China Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials School of Physics and Telecommunication Engineering South China Normal University Guangzhou510006 China Frontier Research Institute for Physics South China Normal University Guangzhou510006 China 3rd Institute of Physics Research Center SCoPE and IQST University of Stuttgart Stuttgart70569 Germany Max Planck Institute for Solid State Research Stuttgart Germany School of Biomedical Sciences The University of Hong Kong Hong Kong Advanced Biomedical Instrumentation Centre Hong Kong Science Park Shatin New Territories Hong Kong

During the past decade, interest has grown significantly in developing ultrasensitive widefield diamond magnetometry for various applications, such as inspecting integrated circuits, measuring neuronal action potentials, and investigating vortex dynamics in superconductors. Despite attempts to improve the adoption of conventional frame-based sensors, including the lock-in technique, avalanche photodiode arrays, and the streaking imaging approach, achieving high temporal resolution and sensitivity simultaneously remains a key challenge. This is largely due to the transfer and processing of massive amounts of sensor data to capture the widefield fluorescence intensity changes of spin defects in diamonds. In this study, we adopt a neuromorphic vision sensor to address this issue. This sensor pre-processes the detected signals in optically detected magnetic resonance (ODMR) measurements for quantum sensing, employing a working principle that closely resembles the operation of the human vision system. By encoding the changes of light intensity into spikes, this approach results in a vast dynamic range, high temporal resolution, and exceptional signal-to-background ratio. After a thorough evaluation of theoretical feasibility, our experiment with an off-the-shelf event camera demonstrated a 13× improvement in temporal resolution with comparable precision of detecting ODMR resonance frequencies compared with the state-of-the-art highly specialized frame-based approach. A specialized camera system with the same mechanism has the potential to enhance these benefits further. This performance improvement is primarily attributable to orders of magnitude smaller data volumes and, thus, reduced latency. We further showcase the deployment of this technology in monitoring dynamically modulated laser heating of gold nanoparticles coated on a diamond surface, a recognizably difficult task using existing approaches. The current development provides new insights for high-precision and

关键词： Electrophysiology

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单分子电子学的实验研究进展及未来10年展望:从器件到应用

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科学通报 2023年第17期68卷 2197-2212页

作者：洪文晶厦门大学化学化工学院人工智能研究院固体表面物理化学国家重点实验室高端电子化学品国家工程研究中心(重组)厦门361005

单分子电子学的初衷是采用单个分子这种极致尺寸结构精确可控的材料作为电子器件的功能单元,以此来应对半导体器件尺寸的小型化进程.从第一次实验测试到单分子电导开始,单分子电子学经历了25年的发展,逐渐衍生出两条研究路线:一条是延... 详细信息

单分子电子学的初衷是采用单个分子这种极致尺寸结构精确可控的材料作为电子器件的功能单元,以此来应对半导体器件尺寸的小型化进程.从第一次实验测试到单分子电导开始,单分子电子学经历了25年的发展,逐渐衍生出两条研究路线:一条是延续该领域的初心,通过采用单个分子构筑半导体器件,进而实现逻辑运算乃至分子计算芯片;另一条是开辟新的研究领域,采用单分子电子学技术作为单分子尺度物理化学过程的表征方法和研究工具.本文沿着单分子电子学的发展脉络,简述单分子电子学领域的重要研究进展,并对该领域未来发展趋势及所面临的挑战进行展望.

关键词：单分子分子电子学分子器件量子干涉电场效应

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Femtosecond pulse structuring of multicore fibers for development of advanced fiber lasers and sensors 5th

Femtosecond pulse structuring of multicore fibers for develo...

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5th Asian School-Conference on Physics and Technology of Nanostructured Materials, ASCO-Nanomat 2020

作者： Dostovalov, Alexandr V. Wolf, Alexey A. Bronnikov, Kirill A. Skvortsov, Mikhail I. Churin, Alexey E. Babin, Sergey A. Institute of Automation and Electrometry of the SB RAS 1 Acad. Koptyug Ave Novosibirsk630090 Russia

ISBN: (纸本)9783035737936

In this paper we investigate the fiber Bragg grating (FBG) arrays selectively inscribed in a multicore fiber for a different sensor and laser applications. Particularly, wavelength-switchable and tunable fiber laser was realized based on uniform and non-uniform FBGs precisely positioned in the selected cores. A quasi-distributed 3D shape sensor based on FBG array inscribed in a multicore fiber with helically twisted side cores was fabricated and applied for shape reconstruction of papillotome. © 2020 Trans Tech Publications Ltd, Switzerland.

关键词： Fiber lasers

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development of ASIC for SiPM sensor readout

Development of ASIC for SiPM sensor readout

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作者： CHENG, WEISHUAI Polytechnic University of Turin

学位级别：博士

Silicon photo-multiplier (SiPM) is a new generation of solid-state photon sensors, invented by Russian scientists during the 1990s, which working principle is based on the operation of photo-diode arrays in Geiger mode. Similarly to the conventional Photon-Multiplier Tube (PMT), a SiPM features a high gain in the same range, high Photon Detect Efficiency (PDE) and excellent time response. On top of that, SiPMs provide important advantages such as low operating voltage, com- pactness and insensitivity to magnetic fields. Initial drawbacks in terms of high cross-talk, dark count and generally high correlated noise, has been significantly reduced with constant improvements in manufacturing technology. As a conse- quence, SiPMs became an attractive choice for an increased number of applications in nuclear medicine, high energy and astroparticle physics experiments, automotive (LIDAR) and homeland security. ASICs (Application Specified Integrated Circuits) have been used in radiation sensor readout for more than 40 years, providing specific solutions in terms of signal amplification, shaping, and digitization. The development of custom integrated electronics for the readout of highly segmented SiPM matrices allowed for the con- struction of compact photoelectronic modules for detectors implementing aggressive spatial resolution and channel density. This thesis exploits the development of innovative CMOS integrated electronics for SiPM readout. The versatility of the architecture of the ASICs herein described should allow for the use of these electronics in system-grade detectors for medical imaging, particle and nuclear physics, using both room temperature inorganic (crystal) scintillators or the fast scintillation of compton scattering in novel noble-liquid based PET detectors operating at cryogenic temperatures. This manuscript provides detailed description, analytical depiction and silicon characterisation results of the front-end CMOS circuitry to readout SiPM sensor

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Editors' Choice-Critical Review-A Critical Review of solid state Gas sensors

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JOURNAL OF THE ELECTROCHEMICAL SOCIETY 2020年第3期167卷

作者： Hunter, Gary W. Akbar, Sheikh Bhansali, Shekhar Daniele, Michael Erb, Patrick D. Johnson, Kevin Liu, Chung-Chiun Miller, Derek Oralkan, Omer Hesketh, Peter J. Manickam, Pandiaraj Vander Wal, Randy L. NASA Glenn Res Ctr Cleveland OH 44134 USA Ohio State Univ Columbus OH 43210 USA Florida Int Univ Miami FL 33174 USA North Carolina State Univ Raleigh NC 27695 USA Univ North Carolina Chapel Hill Chapel Hill NC 27599 USA US Naval Res Lab Washington DC 20375 USA Case Western Reserve Univ Cleveland OH 44106 USA Georgia Inst Technol Atlanta GA 30332 USA CSIR Cent Electrochem Res Inst Karaikkudi 630003 Tamil Nadu India Penn State Univ State Coll PA 16801 USA

solid state gas sensors are a core enabling technology to a range of measurement applications including industrial, safety, and environmental monitoring. The technology associated with solid-state gas sensors has evolved in recent years with advances in materials, and improvements in processing and miniaturization. In this review, we examine the state-of-the-art of solid state gas sensors with the goal of understanding the core technology and approaches, various sensor design methods to provide targeted functionality, and future prospects in the field. The structure, detection mechanism, and sensing properties of several types of solid state gas sensors will be discussed. In particular, electrochemical cells (solid and liquid), impedance/resistance based sensors (metal oxide, polymer, and carbon based structures), and mechanical sensing structures (resonators, cantilevers, and acoustic wave devices) as well as sensor arrays and supporting technologies, are described. development areas for this field includes increased control of material properties for improved sensor response and durability, increased integration and miniaturization, and new material systems, including nano-materials and nano-structures, to address shortcomings of existing solid state gas sensors. (c) 2020 The Author(s). Published on behalf of The Electrochemical Society by IOP Publishing Limited.

关键词： Metals

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Investigation of bowing effect of 4’’ epitaxial wafer and reliability of gan-based micro-led devices 57th

Investigation of bowing effect of 4’’ epitaxial wafer and ...

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57th SID International Symposium, Seminar and Exhibition, Display Week, 2020

作者： Zhang, Ke Liu, Yibo Cha, Ka Wah Yeung, Sze-Yan Sun, Xiaowei Liu, Zhaojun Kwok, Hoi-Sing State Key Laboratory of Advanced Displays and Optoelectronics Technologies The Hong Kong University of Science and Technology Hong Kong Department of Electrical and Electronic Engineering Southern University of Science and Technology China

GaN-based Micro-LEDs have shown great potential in various filed, such as solid-state lighting, display, sensor, visible light communication and multifunctional devices. The performance of Micro-LEDs in various operating environment drew enormous attention recently. We investigate the fabrication process of Micro-LED devices with 4’’ epitaxial wafer. The problems occurred during the process, especially bowing effect, were systematically introduced. Several solutions have been proposed and compared. In addition, the characterization and reliability test were measured to show sufficient quality of those devices. © 2020 SID.

关键词： Light emitting diodes

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A 47.14-$\mu\text{W}$ 200-MHz MOS/MTJ-Hybrid Nonvolatile Microcontroller Unit Embedding STT-MRAM and FPGA for IoT applications

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IEEE JOURNAL OF solid-state CIRCUITS 2019年第11期54卷 2991-3004页

作者： Natsui, Masanori Suzuki, Daisuke Tamakoshi, Akira Watanabe, Toshinari Honjo, Hiroaki Koike, Hiroki Nasuno, Takashi Ma, Yitao Tanigawa, Takaho Noguchi, Yasuo Yasuhira, Mitsuo Sato, Hideo Ikeda, Shoji Ohn, Hideo Endoh, Tetsuo Hanyu, Takahiro Tohoku Univ Res Inst Elect Commun Lab Brainware Syst Sendai Miyagi 9808577 Japan Tohoku Univ Ctr Spintron Integrated Syst Sendai Miyagi 9808577 Japan Tohoku Univ Ctr Innovat Integrated Elect Syst Sendai Miyagi 9808577 Japan Tohoku Univ Res Inst Elect Commun Sendai Miyagi 9808577 Japan Tohoku Univ Ctr Innovat Integrated Elect Syst Sendai Miyagi 9808572 Japan Tohoku Univ Ctr Spintron Integrated Syst Grad Sch Engn Sendai Miyagi 9808572 Japan Tohoku Univ Ctr Spintron Integrated Syst Sendai Miyagi 9808572 Japan Tohoku Univ Ctr Spintron Res Network Sendai Miyagi 9808572 Japan Tohoku Univ Res Inst Elect Commun Sendai Miyagi 9808572 Japan Tohoku Univ WPI Adv Inst Mat Res Sendai Miyagi 9808577 Japan Tohoku Univ Ctr Spintron Res Network Sendai Miyagi 9808577 Japan Tohoku Univ Grad Sch Engn Sendai Miyagi 9808572 Japan

The demand for energy-efficient, high-performance microcontroller units (MCUs) for the use in power-supply-critical Internet-of-Things (IoT) sensor-node applications has witnessed a substantial increase. In response, research concerning the development of several low-power-consuming MCUs has been actively pursued. The performance level of such MCUs, however, has not been sufficient, thereby rendering them non-feasible for the use in IoT sensor-node applications that process a large number of received signals immediately followed by extraction of valuable information from them to limit data transferred to a data center. To realize next-generation IoT systems based on intelligent sensor-node application, ultra-low-power high-performance MCUs need to be developed. This paper presents an ultra-low-power-consuming and high-performance MCU configuration based on the spintronics device technology, using which all modules are non-volatilized, and any wasteful power consumption is eliminated by controlling the power supplied independently to each module. By incorporating a reconfigurable accelerator module, for performing various signal-processing procedures in sensor-node applications, and a memory controller, which can speed up the entire system by relaxing the data-transfer bottleneck of logic and memory, the proposed MCU configuration achieves ultra-low power consumption and high-speed operation. As confirmed by the results obtained via measurements performed on a fabricated chip, the proposed MCU design, on average, consumed 47.14 $\mu \text{W}$ power at an operating frequency of 200 MHz. This corresponds to the world's highest signal-processing performance and energy efficiency of highly functional IoT sensor nodes powered by harvested energy

关键词： Nonvolatile memory Spintronics Performance evaluation Magnetic tunneling Central Processing Unit Memory management Standards Energy harvesting field-programmable gate arrays Internet of Things magnetic tunnel junction microcontroller unit (MCU) spin-transfer-torque magnetoresistive random access memory (STT-MRAM)

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Laser induced graphene on phenolic resin and alcohol composite sheet for flexible electronics applications

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FLEXIBLE AND PRINTED ELECTRONICS 2020年第4期5卷 042001-042001页

作者： Kothuru, Avinash Goel, Sanket BITS Pilani Dept Elect & Elect Engn Microflud & Nanoelect Lab MEMS Hyderabad Campus Hyderabad Telangana India

Harnessing Laser-induced graphene (LIG) on various substrates, its optimization and application for various electronic devices has increased in the recent years. LIG has been reported as an alternative process for the realization of graphene for flexible electronics with excellent strength, conductivity and mechanical robustness. However, in a single-step manufacturing process, the development of a cost-effective, scalable electronic system using LIG is very challenging. In this work, a novel, simple, low-cost, and solid-state approach has been introduced to print and develop LIG-based conductivity traces and patterns. Here, the LIG conductive zones have been formed on various platforms by using phenolic resin (PR). The LIG regions were effectively developed from direct CO(2)laser ablation on the PR and polyvinyl alcohol (PR-PVA) composite sheets. This technique makes it possible to easily create highly conductive arrays on various substrates for realizing the components and devices for flexible electronics. By utilizing the augmented power and the speed of CO(2)laser, and the ratio of PR-PVA, the optimal conductivity of the formed LIG on PR-PVA sheet has been observed. Unique characteristics of LIG on PR-PVA include simple synthesis process, flexibility, ability to form a thin film with desired conductivity, and cost-effectiveness. The feasibility and viability of the successful LIG on PR-PVA sheet was demonstrated for applications like the capacitive touch sensor and the pressure sensor matrix.

关键词： laser-induced graphene phenolic resin polyvinyl alcohol CO(2)laser flexible electronics touch pad

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A universal 3D imaging sensor on a silicon photonics platform

arXiv

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arXiv 2020年

作者： Rogers, Christopher Piggott, Alexander Y. Thomson, David J. Wiser, Robert F. Opris, Ion E. Fortune, Steven A. Compston, Andrew J. Gondarenko, Alexander Meng, Fanfan Chen, Xia Reed, Graham T. Nicolaescu, Remus Pointcloud Inc San FranciscoCA94107 United States Optoelectronics Research Centre University of Southampton University Road Southampton HampshireSO17 1BJ United Kingdom Opris Consulting San JoseCA95138 United States

Accurate 3D imaging is essential for machines to map and interact with the physical world[1, 2]. While numerous 3D imaging technologies exist, each addressing niche applications with varying degrees of success, none have achieved the breadth of applicability and impact that digital image sensors have achieved in the 2D imaging world[3-10]. A large-scale two-dimensional array of coherent detector pixels operating as a light detection and ranging (LiDAR) system could serve as a universal 3D imaging platform. Such a system would offer high depth accuracy and immunity to interference from sunlight, as well as the ability to directly measure the velocity of moving objects[11]. However, due to difficulties in providing electrical and photonic connections to every pixel, previous systems have been restricted to fewer than 20 pixels[12-15]. Here, we demonstrate the first large-scale coherent detector array consisting of 512 (32×16) pixels, and its operation in a 3D imaging system. Leveraging recent advances in the monolithic integration of photonic and electronic circuits, a dense array of optical heterodyne detectors is combined with an integrated electronic readout architecture, enabling straightforward scaling to arbitrarily large arrays. Meanwhile, two-axis solid-state beam steering eliminates any tradeoff between field of view and range. Operating at the quantum noise limit[16, 17], our system achieves an accuracy of 3.1 mm at a distance of 75 metres using only 4 mW of light, an order of magnitude more accurate than existing solid-state systems at such ranges. Future reductions of pixel size using state-of-the-art components could yield resolutions in excess of 20 megapixels for arrays the size of a consumer camera sensor. This result paves the way for the development and proliferation of low cost, compact, and high performance 3D imaging cameras, enabling new applications from robotics and autonomous navigation to augmented reality and healthcare. Copyright © 2020, Th

关键词： Pixels

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