The escalating need for high-performance artificial intelligence(AI)computing intensifies the"memory bottleneck"of the von Neumann architecture,prompting extensive exploration of computation-in-memory(CIM)so...The escalating need for high-performance artificial intelligence(AI)computing intensifies the"memory bottleneck"of the von Neumann architecture,prompting extensive exploration of computation-in-memory(CIM)solutions.This study is cen-tered on the optimization of a high-efficiency,low-power"L"-shaped split-gate floating-gate(FG)memory for CIM applications.Fabricated on a 55 nm CMOS platform,the memory devices were systematically investigated through wafer acceptance test(WAT),Sentaurus^(TM)simulations and comprehensive evaluations with the DNN+NeuroSim Framework V2.0.Among devices with diverse FG lengths,the 95-nm FG variant exhibits outstanding performance:it achieves a 5.35 V memory window,reaches a maximum conductance of 16.7μS with excellent linearity under the varying voltage and width pulse scheme(VWPS),real-izes 32-state multi-level storage,and attains a 92%training accuracy on the CIFAR-10 dataset using the VGG8 neural network.展开更多
The photoelectric properties of In_(0.3)Ga_(0.7) As solar cells applied in laser wireless power transmission(LWPT) were studied when they were irradiated by 1070 nm continuous wave(CW) laser of various intensities. Th...The photoelectric properties of In_(0.3)Ga_(0.7) As solar cells applied in laser wireless power transmission(LWPT) were studied when they were irradiated by 1070 nm continuous wave(CW) laser of various intensities. The influences of laser intensity on solar cell parameters extracted by the pollination algorithm were analyzed quantitatively.Results show that the conversion efficiency of the cell rose to the maximum and then decreased rapidly in the laser intensity range of 50–900 mW/cm2. With higher energy laser irradiation, the rise of ideality factor and reverse saturation current would lead to the degradation of voltage at the maximum power point, which was the main reason for the decrease of conversion efficiency. The results provide the basis for choosing the appropriate input energy in the case of different transmission systems.展开更多
基金supported by National Key Research and Development Program of China (2022YFF0605803)Zhejiang key R&D project (2023C01017)+1 种基金the Zhejiang Key Research and Development Project (2024SJCZX0030)Zhejiang Technology Innovation Center of CMOS IC Manufacture Process and Design for supporting us to do this research.
文摘The escalating need for high-performance artificial intelligence(AI)computing intensifies the"memory bottleneck"of the von Neumann architecture,prompting extensive exploration of computation-in-memory(CIM)solutions.This study is cen-tered on the optimization of a high-efficiency,low-power"L"-shaped split-gate floating-gate(FG)memory for CIM applications.Fabricated on a 55 nm CMOS platform,the memory devices were systematically investigated through wafer acceptance test(WAT),Sentaurus^(TM)simulations and comprehensive evaluations with the DNN+NeuroSim Framework V2.0.Among devices with diverse FG lengths,the 95-nm FG variant exhibits outstanding performance:it achieves a 5.35 V memory window,reaches a maximum conductance of 16.7μS with excellent linearity under the varying voltage and width pulse scheme(VWPS),real-izes 32-state multi-level storage,and attains a 92%training accuracy on the CIFAR-10 dataset using the VGG8 neural network.
基金supported by the National Defense Basic Scientific Research Program of China(No.JCKY2016606C002)the Shanghai Aerospace Science and Technology Innovation Fund(No.SAST20161113)+1 种基金the National Natural Science Foundation of China(No.11774176)the Fundamental Research Funds for the Central Universities(No.30918011335)
文摘The photoelectric properties of In_(0.3)Ga_(0.7) As solar cells applied in laser wireless power transmission(LWPT) were studied when they were irradiated by 1070 nm continuous wave(CW) laser of various intensities. The influences of laser intensity on solar cell parameters extracted by the pollination algorithm were analyzed quantitatively.Results show that the conversion efficiency of the cell rose to the maximum and then decreased rapidly in the laser intensity range of 50–900 mW/cm2. With higher energy laser irradiation, the rise of ideality factor and reverse saturation current would lead to the degradation of voltage at the maximum power point, which was the main reason for the decrease of conversion efficiency. The results provide the basis for choosing the appropriate input energy in the case of different transmission systems.
