60Co gamma irradiation effects on Low-Voltage Differential Signaling (LVDS) receivers: Analysis with impedance spectroscopy

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-10-14 DOI:10.1016/j.radphyschem.2025.113367

Pierluigi Casolaro, Vincenzo Izzo, Riccardo Vari, Mila D’Angelantonio, Antonio Vanzanella, Claudio Principe, Arbab Imtiaz, Alberto Aloisio

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引用次数: 0

Abstract

Impedance Spectroscopy (IS), a well-established technique in electrochemistry, is applied in this work to investigate Total Ionizing Dose (TID) effects on Low-Voltage Differential Signaling (LVDS) receivers widely used in high-speed serial links. These devices were irradiated with 60Co gamma rays at a dose of 15.4 kGy with a dose rate of 364 Gy/h. Measurements of the current drawn by the receivers, and key waveform parameters such as amplitude, rise time, fall time, and bit error rate, showed no differences before and after irradiation. However, IS analysis, complemented by I-V measurements, identified radiation-induced changes that are generally difficult, or even impossible, to detect with traditional methods. IS enabled the modeling of different device sections through equivalent circuits based on two time constant networks, revealing TID effects both in the power rail, in the Electrostatic Discharge (ESD) protection circuit, as well as in the differential input pair and output buffer. This work shows that IS is a promising technique to investigate radiation effects on solid-state devices.

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60Co γ辐照对低压差分信号（LVDS）接收机的影响：阻抗谱分析

阻抗谱（阻抗谱）是电化学中一项成熟的技术，在本工作中研究了总电离剂量（TID）对广泛用于高速串行链路的低压差分信号（LVDS）接收器的影响。这些装置以60Co伽马射线照射，剂量为15.4 kGy，剂量率为364 Gy/h。在辐照前后，接收机绘制的电流以及振幅、上升时间、下降时间、误码率等关键波形参数的测量结果均无差异。然而，IS分析与I-V测量相辅相成，确定了传统方法通常难以甚至不可能检测到的辐射引起的变化。IS通过基于两个时间常数网络的等效电路实现了不同器件部分的建模，揭示了在电源轨、静电放电（ESD）保护电路以及差分输入对和输出缓冲器中的TID效应。这项工作表明，IS是研究固态器件辐射效应的一种很有前途的技术。

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.