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2014 IEEE 34th International Scientific Conference on Electronics and Nanotechnology, ELNANO 2014

作者： Vazgen, Sh. Melikyan Ani, L. Aleksanyan Vache, A. Galstyan Ani, S. Harutyunyan Department of Microelectronics Circuits and Systems State Engineering University of Armenia Yerevan Armenia

ISBN: (纸本)9781479945801

A method of on-die resistance self-calibration for receiver and transmitter Input/Output devices, without external reference resistor is presented. Resistance mismatch elimination method, using reference clock and dc current is provided. The proposed method provides opportunity to measure the difference of the termination resistor and the transmission line impedance which is assumed 50-Ohm, detect the variation and minimizing it. A self-calibration technique for termination resistors mismatch elimination is implemented. © 2014 IEEE.

关键词： Resistors

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A Novel Multiple Modes Resonant Sensor Featuring Blue Sideband Excitation

A Novel Multiple Modes Resonant Sensor Featuring Blue Sideba...

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IEEE International Conference on Micro Electro Mechanical systems

作者： Jiao Xu Zhuoyue Zheng Jingqian Xi Ziqian Zhang Huafeng Liu Pan Zhang Jianlin Chen Chen Wang Michael Kraft Yuan Wang R. P. Martins Pui-In Mak MOE Key Laboratory of Fundamental Physical Quantities Measurement PGMF and School of Physics Huazhong University of Science and Technology Wuhan P. R. China Institute of Microelectronics State Key Laboratory of Analog and Mixed-Signal VLSI University of Macau Macau China National Key Laboratory of Advanced Micro and Nano Manufacture Technology School of Integrated Circuits Peking University China School of Microelectronics Shanghai University China Department of Electrical Engineering-MNS KU Leuven Leuven Belgium

ISBN: (数字)9798331508890

ISBN: (纸本)9798331508906

This paper reports a novel MEMS resonant structure functioning as a baseline resonant electrostatic force/temperature sensor, highlighting its substantial potential in sensing applications. The resonator, characterized by a dual-cosine structure, is capable of simultaneous multiple resonant modes actuation within the 300 kHz range, through a sole-source drive approach using the recent emerging Blue Sideband Excitation (BSE) technique. This method enables a distinctive multi-modal response, essential for multi-parameter measurements. The research focuses on the sensor’s temperature characteristics, electrostatic perturbation sensitivity, and noise floor. Notably, the study reveals intriguing temperature responses across different modes, where certain modes exhibit a significant frequency rise with increasing temperature, this is counter-intuitive with common MEMS resonator devices, prompting further investigation into the underlying mechanisms. The analysis of electrostatic perturbation sensitivity and noise background further unfolds the resonator’s performance under various excitation conditions, laying a foundation for advancing sensor functionality, and providing solid evidence on the viability of the subject. To sum up, this study highlights the resonator’s potential as a high-precision sensor, opening new opportunities for MEMS sensor design and multi-parameter measurement applications.

关键词： Temperature measurement Micromechanical devices Temperature sensors Electric potential Temperature Sensitivity Perturbation methods Noise Sensors Electrostatics

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Design of high-efficiency digital-control multi-topology step-down switched capacitor converter 35

Design of high-efficiency digital-control multi-topology ste...

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2015 35th IEEE International Conference on Electronics and Nanotechnology, ELNANO 2015

作者： Melikyan Vazgen, Sh. Galstyan Vache, A. Department of Microelectronics Circuits and Systems State Engineering University of Armenia Synopsys Armenia CJSC Yerevan Armenia

ISBN: (纸本)9781467365345

This paper presents a multi-topology step-down switched-capacitor (SC) converter with a novel digital control. The feedback control system performs digital control over operating frequency and topology of the converter to efficiently modify the SC configuration depending on actual current load as well as required output voltage. The feedback is designed without the usage of reference voltages which provides easy integration of proposed SC converter in digital systems. The converter achieves maximal efficiency of 88%, while providing a wide range of load current and low level of output voltage ripple. Due to the multi-topology structure, high efficiency is provided over 1.3V of input voltage. The converter is designed in 28nm CMOS process using the proposed technique. © 2015 IEEE.

关键词： Frequency modulation

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MemMIMO: A Simulation Framework for Memristor-Based Massive MIMO Acceleration

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IEEE Transactions on Computer-Aided Design of Integrated circuits and systems 2025年

作者： Xu, Jiawei Zheng, Yi Stathis, Dimitrios Wang, Ruijia Shen, Ruisi Zheng, Li-Rong Zou, Zhuo Hemani, Ahmed University of Macau State-Key Laboratory of Analog and Mixed-Signal VLSI Institute of Microelectronics Faculty of Science and Technology ECE Department China Fudan University State Key Laboratory of Integrated Chips and Systems School of Information Science and Technology Shanghai China KTH Royal Institute of Technology School of Electrical Engineering and Computer Science Stockholm Sweden

Memristor-based crossbar architectures have proven highly effective for matrix vector multiplication (MVM) operations, making them a promising solution for accelerating the MVMs widely used in precoding algorithms for multiple input multiple output (MIMO) wireless communication systems. However, real-world implementation of memristor-based computing systems face challenges due to commonly observed non-idealities in both the devices themselves and the circuits they’re built into. To facilitate a rapid design flow and investigate the impact of non-idealities, an integrated open-source simulation framework MemMIMO is developed. The simulation framework estimates the accuracy and hardware performance of the computing system, offering a variety of flexible design options. MemMIMO integrates a behavioral model of the mix-signal architecture with a digital front-end. There are three major building blocks in MemMIMO: the device fitting block, the mapping block, and the performance estimation block. These blocks work together to map the complex MVMs in precoding algorithms for MIMO systems to crossbar-based architectures that incorporate memristor models characterized by physical device behavior. Using two typical use cases targeting six-generation (6G) massive MIMO communication as case studies, MemMIMO is used to model different memristor devices, explore the impact of non-idealities on system accuracy, and benchmark circuit-level performance metrics including area, speed, and power. © 1982-2012 IEEE.

关键词： System-on-chip

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High PSRR and accuracy receiver active equalizer

High PSRR and accuracy receiver active equalizer

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2014 IEEE 34th International Scientific Conference on Electronics and Nanotechnology, ELNANO 2014

作者： Vazgen, Sh. Melikyan Arthur, S. Sahakyan Dingchyan Hayk, H. Nazeli, V. Melikyan Ani, L. Aleksanyan Armen, S. Sahakyan Vahe, S. Babayan Department of Microelectronics Circuits and Systems State Engineering University of Armenia Yerevan Armenia Department of Control and Informatics in Technical Systems State Engineering University of Armenia Yerevan Armenia

ISBN: (纸本)9781479945801

High accuracy equalization and high power supply rejection ratio equalizer in the receiver of a high-speed serial link presented. To validate the proposed architecture, conducted experiments, for examples, with various injected faults, for which the conventional approach of examining the eye opening at the output of the equalizer results. Proposed equalizer have supply noise with 35% higher rejection ratio than USB specification required and hence this equalization mechanism can be used in the special input/output circuits of Universal Serial Bus (USB) and some other protocols as well. © 2014 IEEE.

关键词： Equalizers

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Time-varying Algorithm for Swarm Robotics

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IEEE/CAA Journal of Automatica Sinica 2018年第1期5卷 217-222页

作者： Ligang Hou Fangwen Fan Jingyan Fu Jinhui Wang Laboratory of VLSI and Systems College of Microelectronics Beijing University of Technology Department of Electrical and Computer Engineering North Dakota State University

Ever since the concept of swarm intelligence was brought out, a variety of control algorithms for swarm robotics has been put forward, and many of these algorithms are stable enough and efficient. Most of the researches only take an invariable controller which functions through the whole stage into consideration, the situation in which controller changes over time is rarely taken into account. However, there are limitations for invariable controller dominated algorithms in practical situation,which makes them unable to meet changing environment. On the contrary, variable controller is more flexible and can be able to adapt to complex environment. Considering such advantages,a time-varying algorithm for swarm robotics is presented in this paper. The algorithm takes time as one of the independent variables so that the controller is no longer fixed through the time,but can be changed over time, which brings more choices for the swarm robot system. In this paper, some relevant simulations are designed to test the algorithm. Different control strategies are applied on the same flock during the time, and a more complex,flexible and practical control effect is acquired successfully.

关键词： Advanced self-organization behavior agentbased distributed control system aggregation swarm intelligence

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Silicon-on-Insulator 2×2 Symmetric Optical Switch Based on Total Internal Reflection

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Chinese Physics Letters 1997年第2期14卷 106-108页

作者： ZHAO Ce-zhou LIU En-ke LI Guo-zheng LIU Yu-liang GUO Lin Microelectronics Institute Xidian UniversityXi'an 710071 Department of Electronic Engineering Xi'an Jiaotong UniversityXi'an 710049 Sichuan Institute of Solid-state Circuits Chongqing 630060

Based on the large cross-section single-mode rib waveguide condition,the total internal reflection and the free-carrier plasma dispersion effect,a silicon-on-insulator(SOI)2×2 symmetric optical waveguide switch with a transverse injection structure has been proposed and fabricated,in which the SOI technique utilizes silicon and silicon dioxide thermal bonding and *** device performance is measured at the wavelength of 1.3μ*** shows that the crosstalk and insertion loss are less than -18.1 and 4.8 dB,respectively,at an injection current of 60mA,and response time is 110 ns.

关键词： waveguide SOI polishing

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Integrated plasmonic ruler using terahertz multi-BIC metasurface for digital biosensing

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Moore and More 2025年第1期2卷 1-13页

作者： Ren, Qun Jia, Sheng Li, Jingtong He, Liu Xu, Yan Huang, Hao Wang, Xiaoman Ooi, ZherYian Liang, Yongshan Zhang, Yaoyin Xu, Hang Zhang, Zhang You, Jianwei Sha, Wei E. I. Yao, Jianquan School of Electrical and Information Engineering Tianjin University Tianjin China Department of Ultrasound Diagnosis and Treatment Tianjin Medical University Cancer Institute and Hospital Tianjin China Key Laboratory of Opto-Electronics Information Technology Ministry of Education School of Precision Instruments and Opto-Electronics Engineering Tianjin University Tianjin China Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology School of Microelectronics Tianjin University Tianjin China School of Electronic and Information Engineering Changshu Institute of Technology Jiangsu China State Key Laboratory of Millimeter Waves School of Information Science and Engineering Southeast University Nanjing China Key Laboratory of Micro-Nano Electronic Devices and Smart Systems of Zhejiang Province College of Information Science and Electronic Engineering Zhejiang University Hangzhou China

In recent years, continuous bound states in the continuum (BIC) have gained significant attention for their practical applications in optics, chip technology, and modern communication. Traditional approaches to realizing and analyzing BIC typically rely on magnetic dipole models, which have limitations in quantitative analysis and integration. This creates a gap in understanding how to efficiently harness BIC with higher Q-factors for enhanced performance in real-world applications, particularly in scenarios involving terahertz imaging and multi-channel communication. In this study, we introduce a novel approach using a metallic resonator model that leverages toroidal dipole moments to generate symmetry-protected BIC with high Q-factors. By systematically varying the asymmetry parameters of the metasurface, we gradually break its symmetry, achieving a transition from the BIC mode to the quasi-BIC mode and facilitating the gradual release of stored electromagnetic energy. Our theoretical analysis confirms the existence and generation of BIC, and experimental measurements of the transmission response spectrum validate these theoretical predictions. The results indicate that terahertz metasurface with high Q-factors can produce strong resonances at specific frequencies, enhancing resistance to electromagnetic interference and ensuring stable imaging quality in complex environments. Additionally, this study suggests the potential for an integrated plasmonic ruler to achieve high-resolution and efficient biological imaging. These findings bridge the gap by demonstrating how high Q-factor BIC can be effectively utilized for multi-channel terahertz dynamic imaging and biosensing applications. This advancement lays a new foundation for developing robust systems in multi-channel communication and biomedical sensing, offering significant potential for future technological and medical innovations.

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Millimeter-Wave Co-Polarized Self-Decoupled Substrate-Integrated Dielectric Resonator Antennas for In-Band Full-Duplex and MIMO systems

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IEEE Transactions on Antennas and Propagation 2025年

作者： Liu, Zheng Hu, Peng Fei Pan, Yong Mei Leung, Kwok Wa Zheng, Shao Yong Sun Yat-sen University School of Electronics and Information Technology School of Microelectronics Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems Guangzhou510006 China South China University of Technology School of Electronic and Information Engineering Guangzhou510630 China Sun Yat-sen University School of Electronics and Information Technology Guangzhou510006 China City University of Hong Kong State Key Laboratory of Terahertz and Millimeter Waves Department of Electrical Engineering Kowloon Hong Kong CityU Shenzhen Research Institute Information and Communication Technology Centre Shenzhen518057 China

Millimeter-wave (mm-wave) co-polarized self-decoupled substrate-integrated dielectric resonator antennas (SIDRA) are investigated. A dual-port design is first studied which employs the loading effect of the feeding probe to modify the E-field distributions of the dielectric resonator (DR) (Formula presented) mode. The interaction between the probe-loaded and DR modes results in the formation of a quasi-fundamental mode (Formula presented) and a weak field region at the coupled port, leading to stable radiation patterns for each port with high port isolation. Additionally, metal vias is used to surround the DR to reduce cross-polarization. Also, the metal vias form electric walls which can reduce the DR size effectively. A hole is introduced at the center of the DR to further enhance the isolation. Based on the dual-port antenna element, a 2 × 3-port MIMO array with a center-to-center distance of 0.49λ0 is developed. To improve isolation between adjacent elements, a leaky wave decoupling structure and two strips are introduced, increasing the isolation by 11 dB. Both the antenna element and the MIMO array were fabricated to validate the designs. Experimental results indicate that the –10-dB impedance bandwidth and isolation level of the dual-port antenna element are 6% and 24.4 dB, respectively. For the 2 × 3-port MIMO array, the –10-dB bandwidth and isolation level are 5% and 20 dB, respectively. Stable radiation patterns with low cross-polarization levels are obtained for each port. Our designs feature a simple structure using a single substrate only, with the design methodology extendable to larger MIMO arrays. © 1963-2012 IEEE.

关键词： Millimeter waves

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Low Stress TSV Arrays for High-Density Interconnection

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engineering 2024年第7期38卷 201-208页

作者： Binbin Jiao Jingping Qiao Shiqi Jia Ruiwen Liu Xueyong Wei Shichang Yun Yanmei Kong Yuxin Ye Xiangbin Du Lihang Yu Bo Cong Institute of Microelectronics Chinese Academy of SciencesBeijing 100000China School of Integrated Circuits University of Chinese Academy of SciencesBeijing 100000China State Key Laboratory for Manufacturing Systems Engineering Xi’an Jiaotong UniversityXi’an 710049China

In three-dimensional(3D)stacking,the thermal stress of through-silicon via(TSV)has a significant influence on chip performance and reliability,and this problem is exacerbated in high-density TSV *** this study,a novel hollow tungsten TSV(W-TSV)is presented and *** hollow structure provides space for the release of thermal *** results showed that the hollow W-TSV structure can release 60.3%of thermal stress within the top 2 lm from the surface,and thermal stress can be decreased to less than 20 MPa in the radial area of 3 *** ultra-high-density(1600 TSV∙mm2)TSV array with a size of 640×512,a pitch of 25 lm,and an aspect ratio of 20.3 was fabricated,and the test results demonstrated that the proposed TSV has excellent electrical and reliability *** average resistance of the TSV was 1.21 *** leakage current was 643 pA and the breakdown voltage was greater than 100 *** resistance change is less than 2%after 100 temperature cycles from40 to 125℃.Raman spectroscopy showed that the maximum stress on the wafer surface caused by the hollow W-TSV was 31.02 MPa,which means that there was no keep-out zone(KOZ)caused by the TSV *** results indicate that this structure has great potential for applications in large-array photodetectors and 3D integrated circuits.

关键词： Thermal stress Through-silicon via(TSV)High-density integration

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