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A new use for ring-oscillators (ROs) is proposed by which PMOS and NMOS transistor strengths can be measured and monitored in the field. A new metric, based on RO duty-cycle is defined. This new metric, along with RO-frequency, offers a way to profile and bin transistors based on their drive strengths. With ROs configured from payload transistors, along with the natural programmability of FPGAs, this...
In accordance with shrinking of device sizes and the low-power design of VLSI circuits, power supply noises such as IR-drop affects the operation of SRAM memory cells. Error occurrences in SRAM have already been reported, and several countermeasures have been proposed. It is likely that further device shrinking and lower-power design will cause errors similar to those in SRAM for FF circuits, and...
The adoption of multi- and many-core processors in avionic applications is still limited by certification concerns, mainly due to non-deterministic behavior. In this paper, we review requirements of avionic applications, and we identify some of the critical issues that they are going to face on many-core processors. We then propose a preliminary version of a network-on-chip architecture suitable for...
A method is presented that guides diagnosis using multiple transition faults on sensitized embedded segments. Suspect faults are eliminated with non-enumerative operations and non-pruned faults are ranked. The approach also considers speed-ups on gates. Experimental results demonstrate the scalability of the proposed approach and its effectiveness in fault diagnosis.
With increasing use of electronic systems in vehicles for managing critical functionality, the requirements for safety in automotive chip architectures are becoming mandatory. Thus, automotive chips must provide functional safety capabilities in addition to the general functionality. Augmenting logic and memory BIST (Built-in Self-Test) solutions with new features is one of the options to facilitate...
Achieving the lowest possible operating voltage is needed to minimize the power consumption of a circuit but also to increase its reliability w.r.t hardware errors. An in-situ technique to estimate and reduce the design margins of a circuit is presented which significantly minimizes the operating voltage and tracks it during run-time operation of a circuit without failure. A DSP core embedding this...
Transistor aging, due to Bias-Temperature Instability (BTI) is a serious concern in Static Random Access Memories (SRAMs). Under BTI stress an SRAM cell becomes increasingly skewed, which in turn affects its performance characteristics and consequently the memory reliability. In this paper, a variation tolerant technique for the periodic monitoring of the BTI influence on SRAM cells is presented....
MM (Machine Model) is an ESD test method used to test for robustness of the device against the ESD event which is induced by the running equipment in fabrication or testing procedure [1]. Due to zero resistance in the equivalent circuit, MM is difficult to simulate. In most cases, MM capability can be calculated from HBM (Human Body Model) result (MM ∼10∼20∗HBM) [2]. But in this study HBM can reach...
Physical Unclonable Function {PUF) is severely threatened by modeling attacks. This paper proposes a novel Polymorphic PUF for CPU+FPGA SoC. We fully exploit the dynamic reconfigurability of the SoC to minimize the Challenge Response Pair (CRP) correlation so as to resist modeling attacks. An asymmetric RO pair is proposed to produce the response. Experiments on real CPU+FPGA SoCs show the high resistance...
This paper proposes efficient and powerful deep networks for action prediction from partially observed videos containing temporally incomplete action executions. Different from after-the-fact action recognition, action prediction task requires action labels to be predicted from these partially observed videos. Our approach exploits abundant sequential context information to enrich the feature representations...
The modern automotive industry has entered an era where the tendencies are towards increased automation and connectivity. With every new generation, the proportion of electronics-controlled systems in the vehicles is steadily growing. In parallel the safety and reliability requirements to automobiles are becoming more stringent thus requiring more sophisticated approaches. The problem is complicated...
Fraunhofer IMS develops and fabricates far-infrared focal plane arrays (IRFPA) using microbolometers with a pixel pitch of 17μm technology realized on top of a 0.35 μm CMOS readout integrated circuit (ROIC). The microbolometers are encapsulated by a Chip-Scale-Package (CSP) to ensure a high quality vacuum level. The CSP is realized by placing an infrared transparent lid above a solder frame surrounding...
The relation between amplitude and duration of the current pulse induced by a high energy ionizing particle has been proposed as a criterion for evaluating the SET and SEU robustness of integrated circuits. This criterion has advantage over the widely accepted critical charge concept in the sense that it is less dependent on the current pulse shape. However, to the best of our knowledge, there is...
Control methods based on sEMG obtained promising results for hand prosthetics. Control system robustness is still often inadequate and does not allow the amputees to perform a large number of movements useful for everyday life. Only few studies analyzed the repeatability of sEMG classification of hand grasps. The main goals of this paper are to explore repeatability in sEMG data and to release a repeatability...
In this paper, the problem of robust minimax testing of binary composite hypothesis is considered, while the actual probability densities are located in neighborhoods characterized by the Itakura-Saito divergence. And then the existence of a saddle value condition is proved under Sion's minimax theorem. Moreover, we derive the least favorable distributions and the robust decision rule involved four...
We study the problem of analyzing falsifying traces of cyber-physical systems. Specifically, given a system model and an input which is a counterexample to a property of interest, we wish to understand which parts of the inputs are “responsible” for the counterexample as a whole. Whereas this problem is well known to be hard to solve precisely, we provide an approach based on learning from repeated...
Unlike compressive sensing where the measurement outputs are assumed to be real-valued and have infinite precision, in one-bit compressive sensing, measurements are quantized to one bit, their signs. In this work, our contributions are as follows: 1. We show how to recover the support of sparse high-dimensional vectors in the 1-bit compressive sensing framework with an asymptotically near-optimal...
We address the computational challenge of finding the robust sequential change-point detection procedures when the pre- and post-change distributions are not completely specified. Earlier works [1], [2] establish the general conditions for robust procedures which include finding a pair of least favorable distributions (LFDs). However, in the multi-dimensional setting, it is hard to find such LFDs...
The pLDMOS related devices fabricated by a TSMC 0.25 µm 60 V process was investigated in this paper. For the ESD improvement, some DUTs inserting the N+ zone to form an embedded SCR in the drain end or guard-ring area, respectively. From the TLP testing results, the It2 values of the drain parasitic SCR npn-type and pnp-type could reach > 7 A, higher than that of the traditional pLDMOS device....
The classification of dynamical data streams is among the most complex problems encountered in classification. This is, firstly, because the distribution of the data streams is non-stationary, and it changes without any prior “warning”. Secondly, the manner in which it changes is also unknown. Thirdly, and more interestingly, the model operates with the assumption that the correct classes of previously-classified...
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