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ReARTSim: an ReRAM ARray Transient Simulator with GPU optimized runtime acceleration

NEUROMORPHIC COMPUTING AND ENGINEERING 2024年第1期4卷 014006-014006页

作者： Sui, Yu Yu, Tianhe Song, Shiming USA 1127 Munich Terrac Sunnyval NJ 94089 USA

The demand for computation driven by machine learning and deep learning applications has experienced exponential growth over the past five years (Sevilla et al 2022 2022 international Joint conference on Neural Networks (IJCNN) (IEEE) pp 1-8), leading to a significant surge in computing hardware products. Meanwhile, this rapid increase has exacerbated the memory wall bottleneck within mainstream Von Neumann architectures (Hennessy and Patterson et al 2011 Computer architecture: a quantitative approach (Elsevier)). For instance, NVIDIA graphical processing units (GPUs) have gained nearly a 200x increase in fp32 computing power, transitioning from P100 to H100 in the last five years (NVIDIA Tesla P100 2023 (***/en-us/data-center/tesla-p100/);NVIDIA H100 Tensor Core GPU 2023 (***/en-us/data-center/h100/)), accompanied by a mere 8x scaling in memory bandwidth. Addressing the need to mitigate data movement challenges, process-in-memory designs, especially resistive random-access memory (ReRAM)-based solutions, have emerged as compelling candidates (Verma et al 2019 IEEE Solid-State circuits Mag. 11 43-55;Sze et al 2017 Proc. IEEE 105 2295-329). However, this shift in hardware design poses distinct challenges at the design phase, given the limitations of existing hardware design tools. Popular design tools today can be used to characterize analog behavior via SPICE tools (PrimeSim HSPICE 2023 (***/implementation-and-signoff/ams-simulation/***)), system and logical behavior using Verilog tools (VCS 2023 (***/verification/simulation/***)), and mixed signal behavior through toolbox like CPPSIM (Meninger 2023 (***/Tutorials/wideband_fracn_***)). Nonetheless, the design of in-memory computing systems, especially those involving non-CMOS devices, presents a unique need for characterizing mixed-signal computing behavior across a large number of cells within a memory bank. This requirement f

关键词： ReRAM in memory computing transient simulation GPU acceleration AI simulation

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simulation Analysis of Mechanical Response of Wire Bonding in SiP under Thermal-mechanical-electrical Coupling Load 3

Simulation Analysis of Mechanical Response of Wire Bonding i...

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3rd IEEE international conference on Integrated circuits, Technologies and Applications, ICTA 2020

作者： Chen, Fangzhou Chen, Si Zhou, Bin Huang, Yun Qin, Fei Science and Technology on Reliability Physics and Application of Electronic Component Laboratory Guangzhou China Beijing University of Technology Beijing China

ISBN: (纸本)9781728180328

The heat dissipation of chips rise the risk for reliability of the system in package (SiP). Sequential coupling FEM simulation method was adopted to evaluate the reliability of SiP. The sub-model technology was used to analyze the thermo-mechanical response of gold wire leads in the whole SiP device. Based on the simulation, the stress and temperature distribution of the lead wires are obtained. The maximum value is compared with the ultimate strength to evaluate the reliability of the product under working conditions. © 2020 IEEE.

关键词： system-in-package

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Research on the Fringing-Field Effect of LCoS Devices with Opposite Pretilt Angles for Adjacent Pixels 3

Research on the Fringing-Field Effect of LCoS Devices with O...

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3rd international conference on circuits, system and simulation, iccss 2019

作者： Gong, Yonghao Yang, Shiyi Gang, Kang Chen, Jun Li, Kun Li, Qing Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering Southeast University Nanjing China

ISBN: (纸本)9781728136578

In order to research on influence of the fringe field effects caused by high-resolution Liquid Crystal on Silicon (LCoS) devices, a working mode of LCoS device with opposite pretilt angles for adjacent pixels is designed in this paper. Firstly, the method of calculating the phase-modulation rate of liquid crystal devices is introduced. Then, the distribution of phase modulation of high-resolution LCoS devices in this working mode are simulated by using the TechWizLCD software and software Matlab. Finally, the influence of fringe field effect on phase modulation characteristics of LCoS devices in this working mode is analyzed by comparing phase modulation characteristics with traditional anti-parallel mode (ECB mode). The results show that this working mode restrains the fringe field effects on the adjacent pixels on both sides of the target pixel, while the fringe field effects on the pixel edges of the other pixels is enhanced. © 2019 IEEE.

关键词： Pixels

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Pumped Stimulated Vertical Cavity Surface Emitting Laser by Solution-processed Method 3

Pumped Stimulated Vertical Cavity Surface Emitting Laser by ...

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3rd international conference on circuits, system and simulation, iccss 2019

作者： Chen, Jing Wang, Lixi Pan, Jiangyong Zheng, Yaosheng Lei, Wei Zhang, Wei Ding, Shuyi Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering Southeast University Nanjing210096 China Shenzhen China Star Optoelectronics Semiconductor Display Technology Co.Ltd ShenZhen518132 China School of Information Engineering Nanjing Normal University Taizhou College China

ISBN: (纸本)9781728136578

In this paper, It is fully demonstrated that the characteristics of the vertical cavity surface emitting laser (VCSEL) can be versatilely engineered by independent adjustment of the cavity and solution-processable CdSe/ZnS quantum dots (QDs), featuring low threshold (8.9 μJ/cm2), directional output (beam divergence of ≈ 10 degree), and favorable stability. Importantly, the lasing wavelength can be broadcasted to cover across the red, green, and blue region maintaining comparable thresholds, which is promising in developing single-source-pumped full-color visible lasers. The results unambiguously reveal the feasibility of CdSe/ZnS QDs as practical laser media. © 2019 IEEE.

关键词： Surface emitting lasers

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simulation of the Magnetic Field of a Bitter-like HTS Magnet

Simulation of the Magnetic Field of a Bitter-like HTS Magnet

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2020 IEEE international conference on Applied Superconductivity and Electromagnetic Devices, ASEMD 2020

作者： Cui, Yingmin Wang, Yinshun Lyu, Gang Zhang, Huipeng Zhao, Zhanlong Pi, Wei The State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources Department of Physics North China Electric Power University Beijing Baoding China

ISBN: (纸本)9781728152158

Applications of REBCO coated conductors for the generation of magnetic fields are increasing sharply. In this paper, an equivalent screen current model is proposed to calculate the entire field of a Bitter-like REBCO magnet. This kind of magnet is assembled by REBCO annular coated plates and insulators interactively and energized by flux-pump. In the model, the screen current in the plate is equivalent to the superposition of concentric ring circuits. The magnetic field distribution of this Bitter-like magnet is simulated and discussed. Their field effects on operating temperature, size and anisotropy are analyzed and discussed. This study aims at developing our understanding of the field distribution of this Bitter-like HTS magnet for future applications. © 2020 IEEE.

关键词： Magnets

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Non-volatile in Memory Dual-Row X(N)OR Operation with Write Back Circuit Based on 1T1C FeRAM 15

Non-volatile in Memory Dual-Row X(N)OR Operation with Write ...

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15th IEEE international conference on Solid-State and Integrated Circuit Technology, ICSICT 2020

作者： Qiao, Wang Zhao, Yuling Yang, Jianguo Liu, Chao Jiang, Pengfei Ding, Qingting Gong, Tiancheng Luo, Qing Lv, Hangbing Liu, Ming Key Laboratory of Microelectronics Devices and Integrated Technology Institute of Microelectronics of the Chinese Academy of Sciences Beijing100029 China School of Microelectronics University of Science and Technology of China Hefei230026 China Zhejiang Lab Hangzhou311121 China

ISBN: (纸本)9781728162355

Von Neumann computing architecture system has the characteristic of high energy consumption and slow speed due to the memory bottlenecks of hardware platforms when it processes computing tasks that rely on big data. The drawbacks of memory bottlenecks in traditional structures can be improved significantly using PIM (processing-in-memory) architectures. FeRAM (ferroelectric memory) is a novel memory with the advantages of simple structure, high integration and low power consumption. Thus, it has always been considered as one of the most proper memories for PIM. In this paper, FeRAM was designed as memory and converted to basic computing cells, based on its charge sharing function. A mechanism of two-line activation was adopted during the process of X(N)OR. Then, peripheral circuits were moderately modified to implement bit-by-bit X(N)OR operations between operands stored in the same bit line. Besides, the simulation of X(N)OR logic was carried out. The final simulation results show that the speed, area and power consumption of current FeRAM-based logic operations are improved. The research can be used to enhance the performance of arithmetic logic units for future PIM. © 2020 IEEE.

关键词： Timing circuits

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Multi-node Power/Performance Modeling for HPC system 34

Multi-node Power/Performance Modeling for HPC System

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34th international Technical conference on circuits/systems, Computers and Communications (ITC-CSCC)

作者： Han, Sangwoo Jeong, Tae Yang Chung, Eui-Young Yonsei Univ Dept Elect & Elect Engn Seoul South Korea

ISBN: (纸本)9781728132716

High Performance Computing (HPC) system refers to using a cluster of hundreds or more processing nodes for application which requires a lot of computation. The need for HPC systems has increased in recent years as more applications require a lot of computations such as Deep learning and AI. Various tools and techniques are being developed and researched to efficiently operate HPC systems in line with this need. In this paper, we develop multi-node power/performance modeling. This will help HPC system users to predict power and performance before they configure the system so that they can implement the optimal HPC system for programmers. Power and performance prediction modeling achieves 90% accuracy and takes less than an hour to predict.

关键词： Multi-node Power/Performance simulation model

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An 8 MHz Boost Converter with Feed-Forward Compensation and Adaptive Dead-Time Control

An 8 MHz Boost Converter with Feed-Forward Compensation and ...

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IEEE international conference on Electron Devices and Solid-State circuits (EDSSC)

作者： Liao, Xufeng Huang, Wenbin Liu, Lianxi Xidian Univ Sch Microelect Xian Shaanxi Peoples R China Xidian Univ Shaanxi Key Lab Integrated Circuits & Syst Xian Shaanxi Peoples R China

ISBN: (纸本)9781728102863

This paper proposes an 8 MHz boost converter with optimized line transient response and adaptive dead time for energy harvest system. The feed-forward compensation technique is proposed to achieve rapid line transient response. A dead-time control circuit is presented to achieve the adaptive dead time, which minimizes the body-diode conduction loss and thus improves the efficiency. The proposed converter is implemented in 0.18 pm standard CMOS process with an active area of 0.80x0.75 mm(2). According to the simulation results, the line transient response is improved by 86.6%. Less than 1 ns body-diode conduction time has been achieved without bringing in shoot-through current across 10-150 mA load current range. The 1.8 V output voltage is achieved from 0.35-1.5 V input voltage, and the peak efficiency is 88.9%.

关键词： high frequency boost converter feed forward adaptive dead-time control

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A 28GHz Quadrature Up-conversion Transmitter in 65nm CMOS for 5G mmWave Radio 16

A 28GHz Quadrature Up-conversion Transmitter in 65nm CMOS fo...

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16th international system-on-Chip Design conference (ISOCC)

作者： Kim, Byeonghyeon Kim, Soyeon Lee, Yongho Kim, Seungsoo Shin, Hyunchol Kwangwoon Univ High Speed Integrated Circuits & Syst Lab Seoul South Korea

ISBN: (纸本)9781728124780

A 28GHz RF transmitter is designed in 65nm CMOS for 5G millimeter-wave radio applications. The transmitter is based on a direct-conversion quadrature up-conversion architecture for achieving small silicon area and low power dissipation. The image suppression is improved by adopting I/Q LO mismatch calibration at the LO driving buffer of mixer. The power amplifier is designed in a differential type with cross-coupled neutralized capacitors for stability and reverse-isolation improvement. Combined schematic and EM simulation results show that the transmitter gives the power gain of 37 dB, OP1dB of +5.8 dBm, and P-sat of +11.6 dBm. The total transmitter consumes 111 mW from a 1.2 V supply and occupies 1.78 mm(2).

关键词： RF transmitter quadrature up-conversion power amplifier 5G 28GHz CMOS

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Structural design and simulation of a micro-gyroscope based on nano-grating detection

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MICROsystem TECHNOLOGIES-MICRO-AND NANOsystemS-INFORMATION STORAGE AND PROCESSING systemS 2019年第5期25卷 1627-1637页

作者： Li, Mengwei Wang, Zi Geng, Hao Wu, Qiannan Zhang, Rui Cui, Zhiqin Wang, Xiaoyan Wang, Gao North Univ China Microsyst Integrat Ctr Taiyuan 030051 Shanxi Peoples R China North Univ China Key Lab Instrumentat Sci & Dynam Measurement Minist Educ Taiyuan 030051 Shanxi Peoples R China North Univ China Engn & Technol Res Ctr Shanxi Prov Opt Elect Info Taiyuan 030051 Shanxi Peoples R China

The central concept underpinning the operation of the micro-gyroscope is the detection of the weak Coriolis force. We describe in detail the working principle of an optical micro-gyroscope based on nano-grating detection. A double-layer reflective metal nano-grating is used to detect the Coriolis force acting on the gyroscope. To analyze its structural sensitivity, a simulation model of the gyroscope is configured, results from which show that the structure achieves good modal matching and a structural sensitivity of 6.402nm/degrees/s. Furthermore, the structure of the nano-grating is analyzed in an optical simulation, and a tolerance analysis is performed of several structural parameters to gain insight into realizing an actual device. Finally, a model of the gyroscope system was implemented in the SIMULINK environment. Using parameter values obtained from calculations, simulations of the nano-grating gyroscope gave a total sensitivity of 3.03mv/degrees/s, along with a theoretical noise floor of 5.95x10(-5)degrees/s/Hz. This confirms that the proposed optical micro-gyroscope performs well as designed.

关键词： Gyroscopes

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