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The effect of humidity on SiC Power MOSFET modules is investigated in an industrial application. Four modules are operated outdoor and four modules are operated indoor in identical setups, while their breakdown voltages are monitored regularly. The evolution of the leakage current, indicating humidity-induced degradation is observed.
The Integrated Fan Out (InFO) technology can accom-plish package miniaturization and successfully achieve “More than Moore's Law.” Its substrate-free technology also brings great cost-effective attraction to mobile and wearable applications. Ultra-thin integrated passive devices (IPDs) with high capacitance density can further shrink the InFO size and boost the bandwidth. Although the cost for the...
Systems integration (SI) in healthcare uses an enterprise application integration (EAI) or middleware layer to allow disjoint systems on various platforms to exchange information. Health Level 7 (HL7) is the communication exchange standard used in healthcare for this purpose. The message structure and usage of HL7 is standardized but the implementation of HL7 is widely customized to fit specific system,...
Conventional reliability demonstration test based on statistical method is widely used in industry as it is simple and convenient to apply. But for the products with high reliability and long life, this test method fails to satisfy the demand for short cycle and low cost, and is liable to cause the phenomenon of over-test and short-test. This paper gives a step-stress accelerated sequential probability...
We present the results of Single Event Effects (SEE) testing with high energy protons and with low and high energy heavy ions for electrical components considered for Low Earth Orbit (LEO) and for deep space applications.
Mutation Based Fault Localization(MBFL) is a fault localization technique based on mutation analysis, which precisely identifies the location of fault but incurs a high execution cost, since it needs to execute the test suite on a large amount of mutants. Reduction strategies proposed are usually regarding selecting mutation operators or sampling mutants directly, meanwhile at the cost of losing precision...
In this paper, a distributed video coding (DVC) system with spatiotemporal side information is proposed. The proposed framework addresses the problem of poor compression performance of DVC for high-motion video sequences by integrating temporal and spatial prediction schemes in one framework. Super-resolution techniques are employed for spatially-predicted side information generation, and a support...
Embedded cooling systems have enabled higher volumetric heat removal rates at the chip and package levels, permitting advanced power electronic devices to operate closer to their inherent electrical limits. By embedding microchannels directly into the chip or substrate, higher local and global heat fluxes can be reached as the heat removal takes place in close proximity to the source. As this emerging...
An automatic, defect-oriented method is proposed for activating latent defects in analog and mixed-signal integrated circuits. Based on the topology modification technique, added stress transistors generate voltage stress that activates these latent defects. This contrasts with burn-in testing which uses increased temperatures as a fault activation mechanism. Moreover, this Design-for-Testability...
Solar radiation represents one of the most accessible within renewable energy sources. The rapid scaling-up in the number of installed photovoltaic (PV) systems is accompanied by an increase not only in the size of the associated investments and opportunities but also of the related risks. In this context, the study of the environmental effects which may bring to a decrease in their performance during...
We have produced a new, automated Maszara testing tool. This tool can be used to measure the bond strength across the entire interface of a bonded wafer pair and produce a bond strength map. The tool can also be used for IR inspection.
Creating a graduate-level software engineering breadth course is challenging. The scope is wide. Students prefer hands-on work over theory. Industry increasingly values soft skills. Changing software technology requires the syllabus to be technology-agnostic, yet abstracting away technology compromises realism. Instructors must balance scope with depth of learning. At Carnegie Mellon University, we...
Due to the prohibitive costs of semiconductor manufacturing, most system-on-chip (SoC) design companies outsource their production to offshore foundries. An untrusted foundry can manufacture and sell additional unauthorized chips for profit in violation of their contract. This overproduction can not only cause significant loss of revenue to the designer, but may also have national security implications...
Flexible Hybrid Electronics combine the best characteristics of printed electronics and silicon ICs to create high performance, ultra-thin, physically flexible systems. Advances in converting commercial off-the-shelf products into the physically flexible FleX-IC format are presented. This paper examines the FleX-SoC, physically flexible System-on-Chip, and reports evaluation of the NVM after bending...
State-of-the-art i-vector based speaker verification relies on variants of Probabilistic Linear Discriminant Analysis (PLDA) for discriminant analysis. We are mainly motivated by the recent work of the joint Bayesian (JB) method, which is originally proposed for discriminant analysis in face verification. We apply JB to speaker verification and make three contributions beyond the original JB. 1) In...
In this work, we propose a novel wireless time-reversal indoor events detection system (TRIEDS). By leveraging the time-reversal (TR) technique to capture the changes of channel state information (CSI) in the indoor environment, TRIEDS enables low-complexity single-antenna devices that operate in the ISM band to perform through-the-wall multiple events detection. In TRIEDS, each indoor event is detected...
This paper presents a fast and low cost on-line scheme named Charka that analyzes short faults in channels of octagon NoCs. Experimental results demonstrate that the proposed scheme achieves 100% coverage metrics and its online evaluation reveals compelling effect of these faults on system performance. We observe that the proposed scheme is upto 9X faster while packet latency is improved by 13.79–21...
In this paper, we review and prove certain properties regarding t-way coverage when covering arrays are merged together to form larger arrays. Moreover, we build upon these theoretical observations to formulate a procedure on how, from the input space model of a composed SUT and t-way test suites for its components, to create a larger and unified t-way test suite. The proposed modelling methodologies...
This paper presents a universal self-aligned in situ on-chip micro tensile fracture strength tester designed for tensile strength extraction and process evaluation, which will provide, for the first time as far as the authors know, great force(above 100mN) to in situ on-chip specimen without the introduction of precise instrument, especially suitable for bulk micromachining related tests. The whole...
In this work, we demonstrate both high-frequency (1.12 MHz) MEMS tuning fork resonators and lower frequency (39kHz) MEMS test devices capable of withstanding large magnitude inertial shocks. These devices reliably continue to function after the application of repeated inertial shocks in excess of 20,000g. The device performance, and the robust, pure silicon encapsulated environment are both preserved...
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