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ETS23 Sponsors and Organizers ETS23赞助商和组织者
Pub Date : 2023-05-22 DOI: 10.1109/ets56758.2023.10173956
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引用次数: 0
A Single-Event Latchup setup for high-precision AMS circuits 用于高精度AMS电路的单事件锁定装置
Pub Date : 2023-05-22 DOI: 10.1109/ETS56758.2023.10174024
G. Léger, A. Ginés, E. Peralías, Valentín Gutiérrez, C. Dominguez, M. A. Jalón, L. Carranza
One of the most critical radiation effects, because it is potentially destructive, is the Single-Event Latchup (SEL). Positive feedback in parasitic bipolar structures, triggered by a current pulse induced by an ionizing particle, creates a low impedance path between supply and ground. If the supply is not rapidly shut down, high currents can cause burnout or metal opens. Any radiation campaign must thus implement some protection at the board level to properly detect the onset of a latchup and shut the circuit power down. This paper describes an SEL detection platform, designed for a 13b 40Msps ADC prototype, that takes into account the specific requirements of high-precision Analog and Mixed-Signal circuits.
最关键的辐射效应之一是单事件闭锁(SEL),因为它具有潜在的破坏性。寄生双极结构中的正反馈由电离粒子引起的电流脉冲触发,在电源和地之间产生低阻抗路径。如果不迅速关闭电源,大电流可能导致烧坏或金属开路。因此,任何辐射运动都必须在电路板层面实施一些保护措施,以正确地检测闭锁的开始并关闭电路电源。本文介绍了一种针对13b 40Msps ADC原型设计的SEL检测平台,该平台考虑了高精度模拟和混合信号电路的特殊要求。
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引用次数: 0
DEV-PIM: Dynamic Execution Validation with Processing-in-Memory DEV-PIM:内存处理的动态执行验证
Pub Date : 2023-05-22 DOI: 10.1109/ETS56758.2023.10174063
Alper Bolat, Yahya Can Tugrul, Seyyid Hikmet Çelik, S. Sezer, M. Ottavi, O. Ergin
Instruction injections or soft errors during execution on the CPU can cause serious system vulnerabilities. During the standard program flow of the processor, the injection of unauthorized instruction or the occurrence of an error in the expected instruction are the main conditions for potentially serious such vulnerabilities. With the execution of these unauthorized instructions, adversaries could exploit SoC and execute their own malicious program or get higher-level privileges on the system. On the other hand, non-intentional errors can potentially corrupt programs causing unintended executions or the cause of program crashes. Modern trusted architectures propose solutions for unauthorized execution on SoC with additional software mechanisms or extra hardware logic on the same untrusted SoC. Nevertheless, these SoCs can still be vulnerable, as long as deployed security detection mechanisms are embedded within the same SoC’s fabric. Furthermore, validation mechanisms on the SoC increase the complexity and power consumption of the SoC. This paper presents DEV-PIM, a new, high-performance, and low-cost execution validation mechanism in SoCs with external DRAM memory. The proposed approach uses processing-in-memory (PIM) method to detect instruction injections or corrupted instructions by utilising basic computing resources on a standard DRAM device. DEV-PIM transfers instructions scheduled for execution on the CPU to the DRAM and validates them by comparing content with the trusted program record on the DRAM using PIM operations. By optimising the DRAM scheduling process validation tasks are only executed when memory access is idle. The CPU retains uninterrupted memory access and can continue its normal program flow without penalty. We evaluate DEV-PIM in an end-to-end DRAM-compatible environment and run a set of software benchmarks. On average, the proposed architecture is able to detect 98.46% of instruction injections for different validation. We also measured on average only 0.346% CPU execution overhead with DEV-PIM enabled.
CPU执行过程中的指令注入或软错误会导致严重的系统漏洞。在处理器的标准程序流程中,注入未经授权的指令或在预期指令中出现错误是潜在严重漏洞的主要条件。通过执行这些未经授权的指令,攻击者可以利用SoC并执行他们自己的恶意程序或在系统上获得更高级别的权限。另一方面,非故意错误可能会破坏程序,导致意外执行或导致程序崩溃。现代可信架构提出了在SoC上未经授权执行的解决方案,在相同的不可信SoC上使用额外的软件机制或额外的硬件逻辑。然而,只要部署的安全检测机制嵌入到相同的SoC结构中,这些SoC仍然容易受到攻击。此外,SoC上的验证机制增加了SoC的复杂性和功耗。本文提出了一种新的、高性能的、低成本的运行验证机制DEV-PIM。该方法利用标准DRAM设备上的基本计算资源,采用内存处理(PIM)方法检测指令注入或损坏指令。DEV-PIM将计划在CPU上执行的指令传输到DRAM,并通过使用PIM操作将内容与DRAM上的可信程序记录进行比较来验证它们。通过优化DRAM调度过程,验证任务仅在内存访问空闲时执行。CPU保持不间断的内存访问,可以继续其正常的程序流而不会受到惩罚。我们在端到端内存兼容环境中评估DEV-PIM,并运行一组软件基准测试。平均而言,所提出的架构能够检测98.46%的指令注入以进行不同的验证。我们还测量了在启用DEV-PIM时平均只有0.346%的CPU执行开销。
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引用次数: 0
Online Fault Detection and Diagnosis in RRAM RRAM中的在线故障检测与诊断
Pub Date : 2023-05-22 DOI: 10.1109/ETS56758.2023.10174113
M. Fieback, Filip Bradaric, M. Taouil, S. Hamdioui
Resistive Random Access Memory (RRAM, or ReRAM) is a promising memory technology to replace Flash because of its low power consumption, high storage density, and simple integration in existing IC production processes. This has motivated many companies to invest in this technology. However, RRAM manufacturing introduces new failure mechanisms and faults that cause functional errors. These faults cannot all be detected by state-of-the-art test and diagnosis solutions, thus leading to slower product development and low-quality products. This paper introduces a design-for-test (DFT) based on a parallel-multi-reference read (PMRR) circuit that can detect all RRAM array faults. The PMRR circuit replaces the standard sense amplifier and compares the cell’s state to multiple references during one read operation. Thus, it can be used as a DFT scheme and a normal read circuit at once. This allows for speeding up production testing and the online detection of faults. Furthermore, the circuit is extendable so that more references can be compared, which is required for efficient diagnosis. Finally, the references can be adjusted to maximize the production yield. The circuit outperforms state-of-the-art solutions because it can detect all RRAM faults during diagnosis, production testing, and during its application in the field while minimizing yield loss.
电阻式随机存取存储器(RRAM,简称ReRAM)具有功耗低、存储密度高、易于集成等优点,是一种有望取代闪存的存储器技术。这促使许多公司投资于这项技术。然而,RRAM制造引入了新的失效机制和导致功能错误的故障。这些故障无法通过最先进的测试和诊断解决方案全部检测到,从而导致产品开发速度减慢和产品质量降低。本文介绍了一种基于并行多参考读电路的测试设计(DFT)方法,该方法可以检测RRAM阵列的所有故障。PMRR电路取代了标准的感测放大器,并在一次读取操作期间将单元的状态与多个参考进行比较。因此,它可以同时用作DFT格式和普通读电路。这允许加快生产测试和在线检测故障。此外,电路具有可扩展性,因此可以比较更多的参考,这是有效诊断所必需的。最后,可以调整参考,以最大限度地提高生产收率。该电路优于最先进的解决方案,因为它可以在诊断、生产测试和现场应用过程中检测到所有RRAM故障,同时最大限度地减少产量损失。
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引用次数: 0
Hybrid Ring Generators for In-System Test Applications 用于系统内测试应用的混合环发生器
Pub Date : 2023-05-22 DOI: 10.1109/ETS56758.2023.10174093
J. Rajski, Maciej Trawka, J. Tyszer, Bartosz Wlodarczak
Ring generators are high speed devices formed by transformations that alter the structure of conventional linear feedback shift registers (LFSRs) while preserving a transition function of the original circuits [8]. They feature a reduced number of levels of XOR logic, minimized internal fan-outs, and simplified layout and routing. This paper discusses hybrid ring generators – a new class of lightweight linear finite state machines. While they use the principal design rules of conventional ring generators, the new devices can reduce the number of XOR gates up to seven times compared to conventional rings implementing the same characteristic polynomial. It makes a substantial contribution toward the performance of linear circuits used in a variety of test applications. Several issues related to hybrid ring generators such as designing MISRs, programable PRPGs, or phase shifters are also discussed in the paper along with data providing architectural details of hybrid ring generators for sizes up to 256 bits.
环形发生器是一种高速器件,通过改变传统线性反馈移位寄存器(lfsr)的结构,同时保留原始电路的过渡函数而形成[8]。它们的特点是减少了XOR逻辑的级别,最小化了内部扇出,简化了布局和路由。本文讨论了一类新的轻型线性有限状态机——混合环发生器。虽然它们使用传统环发生器的主要设计规则,但与实现相同特征多项式的传统环相比,新设备可以减少至多七倍的异或门的数量。它对各种测试应用中使用的线性电路的性能做出了实质性的贡献。本文还讨论了与混合环发生器相关的几个问题,如设计misr、可编程prpg或移相器,并提供了256位混合环发生器的架构细节数据。
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引用次数: 0
Evaluating the Prevalence of SFUs in the Reliability of GPUs 评估gpu可靠性中sfu的患病率
Pub Date : 2023-05-22 DOI: 10.1109/ETS56758.2023.10174110
J. E. R. Condia, Juan-David Guerrero-Balaguera, Edward Javier Patiño Nuñez, Robert Limas Sierra, M. Reorda
1 Currently, Graphics Processing Units (GPUs) are extensively used in several safety-critical domains to support the implementation of complex operations where reliability is a major concern. Some internal cores, such as Special Function Units (SFUs), are increasingly adopted, being crucial to achieving the necessary performance in multimedia, scientific computing, and neural network training. Unfortunately, these cores are highly unexplored in terms of their impact on reliability.In this work, we evaluate the incidence of SFUs on the reliability of GPUs when affected by soft errors. First, we analyze the impact of SFU cores on the GPU’s reliability and the running workloads. We resort to applications configured to use or not the SFU cores and evaluate the effect of soft errors by using a software-based fault injection environment (NVBITFI) in an NVIDIA Ampere GPU. Then, we focus on evaluating the impact of soft errors arising in the SFUs. A fine-grain RTL evaluation determines the soft error effects on two SFUs architectures for GPUs (’fused’ and ’modular’). The experiments use an open-source GPU (FlexGripPlus) instrumented with both SFU architectures. The results suggest that workloads using SFUs are more vulnerable to faults (from 1 up to 5 orders of magnitude for the analyzed applications). Moreover, the RTL results show that modular SFUs are less vulnerable to faults (in up to 47% for the analyzed workloads) in comparison with fused SFUs (base of commercial devices), so allowing us to identify the more robust SFU architecture.
目前,图形处理单元(gpu)广泛应用于几个安全关键领域,以支持复杂操作的实现,其中可靠性是一个主要关注的问题。一些内部内核,如特殊功能单元(sfu),被越来越多地采用,对于实现多媒体、科学计算和神经网络训练所需的性能至关重要。不幸的是,就其对可靠性的影响而言,这些核心还没有得到充分的研究。在这项工作中,我们评估了sfu在受到软错误影响时对gpu可靠性的影响。首先,我们分析了SFU内核对GPU可靠性和运行工作负载的影响。我们求助于配置为使用或不使用SFU内核的应用程序,并通过在NVIDIA安培GPU中使用基于软件的故障注入环境(NVBITFI)来评估软错误的影响。然后,我们重点评估了sfu中出现的软错误的影响。细粒度RTL评估确定了gpu的两种sfu架构(“融合”和“模块化”)的软误差影响。实验使用了一个开源GPU (FlexGripPlus),该GPU配备了两种SFU架构。结果表明,使用sfu的工作负载更容易受到故障的影响(对于所分析的应用程序,从1到5个数量级)。此外,RTL结果表明,与融合的SFU(商业设备的基础)相比,模块化SFU更不容易受到故障的影响(在分析的工作负载中高达47%),因此允许我们识别更健壮的SFU架构。
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引用次数: 0
ETS 2023 Foreword
Pub Date : 2023-05-22 DOI: 10.1109/ets56758.2023.10174207
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引用次数: 0
Approximate Communication: Balancing Performance, Power, Reliability, and Safety 近似通信:平衡性能、功率、可靠性和安全性
Pub Date : 2023-05-22 DOI: 10.1109/ets56758.2023.10174057
Abdalrhman Badran, Somayeh Sadeghi Kohan, Jan Dennis Reimer, S. Hellebrand
Interconnect is essential for the performance, power consumption, and safety of modern digital circuits. In the context of approximate computing, various methods have been proposed to improve the system performance by decreasing the amount of transmitted data or reducing power consumption through reduced switching activity on the interconnects. However, their impact on the reliability and safety of interconnect has not yet been evaluated. In this work, the effects of approximate communication on the reliability and safety of interconnects in digital circuits are assessed. The results show that while these methods increase performance, they can also harm the reliability and mission time of interconnects. We propose some modifications to address the safety and reliability issues when using approximate communication. Our results show that these modifications can increase the mission time, and establish a proper balance between performance, power consumption, and safety.
互连对于现代数字电路的性能、功耗和安全性至关重要。在近似计算的背景下,已经提出了各种方法来通过减少传输数据量或通过减少互连上的切换活动来降低功耗来提高系统性能。然而,它们对互连的可靠性和安全性的影响尚未得到评估。在这项工作中,评估了近似通信对数字电路互连可靠性和安全性的影响。结果表明,这些方法在提高互连性能的同时,也会损害互连的可靠性和任务时间。我们提出了一些修改,以解决使用近似通信时的安全性和可靠性问题。我们的研究结果表明,这些改进可以增加任务时间,并在性能,功耗和安全性之间建立适当的平衡。
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引用次数: 0
Learning Electrical Behavior of Core Interconnects for System-Level Crosstalk Prediction 用于系统级串扰预测的核心互连电行为学习
Pub Date : 2023-05-22 DOI: 10.1109/ETS56758.2023.10173987
Katayoon Basharkhah, Raheleh Sadat Mirhashemi, Nooshin Nosrati, Mohammad-Javad Zare, Z. Navabi
Efficient distribution of tasks in an SOC between various components of an embedded system affect rate of data exchange between cores and obviously the number and fanout of interconnecting cores. Data rate and interconnect fanouts depend on post-layout wire characteristics that, in the worst-case situation, must be evaluated for abovementioned system level decisions. In this work we are making provisions for avoiding this large gap between high-level decision making and low-level physical properties. IP-core interconnects can be fully characterized by post layout information of the IP-core, load properties, and the number of destination cores they are driving. This information can be back-annotated into abstract system-level interconnect models to be used by core integrators for design space exploration (DSE). Fanout and/or frequency of operation of an IP-core can be decided by this DSE environment. In this work, we propose a machine-learning based methodology that uses signoff parasitic information and the actual wire data to generate the dataset and train a model. The model was evaluated in fast high-level SystemC environment for two RISC-V based processors in two SoCs. The models were 26 times faster than the low-level simulations with a crosstalk fault coverage of 1.5% error.
在嵌入式系统的SOC中,任务在各个组件之间的有效分配会影响内核之间的数据交换速率,并明显影响互连内核的数量和扇出。数据速率和互连扇出取决于布线后的电线特性,在最坏的情况下,必须对上述系统级决策进行评估。在这项工作中,我们正在为避免高层决策和低层物理性质之间的巨大差距做准备。ip核互连可以通过ip核的后布局信息、负载属性和它们正在驱动的目标核的数量来充分表征。这些信息可以反向注释到抽象的系统级互连模型中,供核心集成商用于设计空间探索(DSE)。扇出和/或ip核的操作频率可以由这个DSE环境决定。在这项工作中,我们提出了一种基于机器学习的方法,该方法使用签名寄生信息和实际线数据来生成数据集并训练模型。该模型在两个soc的两个RISC-V处理器的快速高级SystemC环境中进行了评估。模型速度是低阶模拟的26倍,串扰故障覆盖率为1.5%。
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引用次数: 0
Counterfeit Detection by Semiconductor Process Technology Inspection 半导体制程技术检测的防伪方法
Pub Date : 2023-05-22 DOI: 10.1109/ETS56758.2023.10174131
Matthias Ludwig, A. Bette, Bernhard Lippmann, G. Sigl
With world-wide distributed semiconductor supply chains and a scarcity of microelectronic products, counterfeit devices are gaining momentum. Sourcing products from trusted providers are the theoretical remedy, yet practice shows the reality. Forged electronics are entering the supply chain at a high rate and pose a threat to safety, reliability, and security. Academia and industry have established various pre- or post-production measures to effectively address this issue partially. Yet, several inadequately covered aspects of the field require improvements. First, this work introduces a rating scheme to enable the effective comparison between anti-counterfeiting methods. Recently published methods are compared using this scheme. Second, a novel, generic, generally applicable prover-verifier attestation framework for post-production anti-counterfeiting methods is established. Third, the work implements a new anti-counterfeit method. By introducing technological individual features, the method incorporates technology intrinsic features of the front-end semiconductor manufacturing process as technology distinctive characteristic. Profile parameters are extracted through pattern recognition and statistical methods which are compared to the expected technologies through distance metrics, allowing an assertion of device authenticity. Finally, the versatility of the method is experimentally validated through real samples. Overall, an accuracy of 100% is reported for seven samples which are checked for authenticity.
随着全球半导体供应链的分布和微电子产品的稀缺,假冒设备的势头正在增强。从可信的供应商那里采购产品是理论上的补救措施,但实践表明现实。伪造电子产品正以很高的速度进入供应链,并对安全性、可靠性和安全性构成威胁。学术界和工业界已经制定了各种制作前或制作后的措施来有效地解决这一问题。然而,该领域的几个未充分涵盖的方面需要改进。首先,本文引入了一种评级方案,使防伪方法之间能够进行有效的比较。使用该方案对最近发表的方法进行了比较。其次,建立了一种新的、通用的、普遍适用的证明者-验证者认证框架,用于后期防伪方法。第三,本工作实现了一种新的防伪方法。该方法通过引入技术个体特征,将半导体前端制造工艺的技术内在特征作为技术显著特征。通过模式识别和统计方法提取配置文件参数,通过距离度量将其与预期技术进行比较,从而可以断言设备的真实性。最后,通过实际样品验证了该方法的通用性。总体而言,对7个样品进行真实性检查,报告的准确性为100%。
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引用次数: 1
期刊
2023 IEEE European Test Symposium (ETS)
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