Verilog-A单光子雪崩二极管雪崩动力学和猝灭模型

2020 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD) Pub Date : 2020-09-23 DOI:10.23919/SISPAD49475.2020.9241648

Y. Oussaiti, D. Rideau, J. Manouvrier, V. Quenette, B. Mamdy, C. Buj, J. Grebot, H. Wehbe-Alause, A. Lopez, G. Mugny, M. Agnew, E. Lacombe, M. Pala, P. Dollfus

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引用次数: 4

摘要

我们提出了一个Verilog-A模型，用于计算单光子雪崩二极管(SPADs)的时间雪崩积累及其统计。将这种基于物理的方法与TCAD混合模式分析预测和测量进行了比较。这种累积可以在数百皮秒的量级上，影响统计脉冲宽度分布，这是经过实验验证的。此外，我们还详细讨论了雪崩及其淬火过程中器件上的电压摆动，研究了其对功耗的影响。该模型可以帮助芯片设计人员优化SPAD光电二极管的淬火电路。

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Verilog-A model for avalanche dynamics and quenching in Single-Photon Avalanche Diodes

We present a Verilog-A model accounting for the temporal avalanche buildup and its statistics in Single-Photon Avalanche Diodes (SPADs). This physics-based approach is compared to TCAD mixed-mode analyzing predictions, as well as measurements. The buildup that can be in the order of hundreds picoseconds, affects the statistical pulse width distribution, which is experimentally verified. Furthermore, we address in detail the voltage swing across the device during avalanche and its quenching, studying its impact on power consumption. This model can help a chip designer to optimize circuits for quenching the SPAD photodiode.

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2020 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD)

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