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Based on the technical improvement of the High Frequency Partial Discharge Measurement applied to the insulation diagnosis of Extra-High-Voltage power cable system since last two decades in the world-wide market, the first model for Partial Discharge Monitoring System was also developed in Korea and then it was applied to KEPCO underground power cable system several years ago. However, it has brought...
In this paper, we investigate the impact of Ta and Ta2O5 thickness and of thermal treatment for the Ta2O5 layer on the forming and switching characteristics of Pt/Ta2O5/Ta/Pt ReRAM devices. The forming voltage (VFORM) decreases with increasing Ta and decreasing Ta2O5 thickness. However, VFORM saturates (∼ 2 V) for thicker Ta layers. Thinner Ta2O5 switching layer can further reduce the forming voltage...
In this work, to increase the timing yield of Tunnel Field Effect Transistor (TFET) circuits in the presence of the process variation, we propose to use MOSFET-based gates instead of some TFET-based gates in the TFET circuits. This hybridization approach originates from the fact that TFETs are more sensitive to process variation, when compared to conventional MOSFETs. First, we investigate the impact...
The reliability of commercial Silicon Carbide (SiC) Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs) is investigated, and comparative assessment is performed under various test environments. The MOSFETs are tested both regarding the electrical properties of the dies and the packaging properties of the devices. The results of each reliability stress are utilized not only for mutual comparison...
Due to its advantages in terms of cost, size, weight, performance and availability, plastic encapsulated devices are used widely. However, the long-term reliability of plastic encapsulated devices is influenced by the internal connection failure between dies and lead frames, including first bond, second bond, bond wire and die-attach. The paper introduced five common failure mechanisms of internal...
Shingled write disks (SWDs) adopt shingled magnetic recording (SMR) to overcome the density limit faced in the conventional hard disk drives (HDDs) and RAID5 provide high performance and high reliability for reasonable cost. Meanwhile Flash memory based Solid State Drives (SSDs) are becoming an important part of computer storage hierarchy to significantly improve performance and energy efficiency...
The trends for smartphone and other mobile devices are more than ever for integration and lower cost. Meanwhile, a higher degree of functionality and performance, thinner profile, and longer battery life are some of the additional market drivers seen in these devices. The implications of these market drivers on the packaging content of mobile devices including internet of things (IoT) and wearable...
A production run is usually referred to as a group of identical or similar goods that is produced by a particular manufacturing process. In various manufacturing industries, the manufacturing activity is carried out by deploying a series of production runs of different products according to customer orders. In this paper, we consider finite production run-based manufacturing in serial lines with machines...
Physically Unclonable Functions (PUFs) were introduced over a decade ago for a variety of security applications. Silicon PUFs exploit uncontrollable random variations from manufacturing to generate unique and random signatures/responses. Existing research on PUFs has focused on either PUF design at the architectural level or optimization of lithography to increase sensitivity to random process variations...
In order to improve hardware utilization, a novel Protection & Control Architecture based on virtual devices in digital substation is proposed in this paper. An “all-in-one” monitoring and control device is developed to support new architecture. Based on a Cloud Computing platform, the protection and control functions are built as virtual devices. Based on virtual protection & control, the...
We present a platform that enables a service drone to guarantee reliability for mission completion and to update an application while in flight, using a robot operating system (ROS). The ROS is a flexible framework for writing robot software. It is a collection of tools, libraries, and conventions that aim to simplify the task of creating complex and robust robot behavior across a wide variety of...
An ideal selector device should have ultra-low leakage current, high reliability and fast recovery speed. In this work, we present a Cu BEOL compatible threshold switching (TS) selector being capable of maintaining ultra-low leakage for hours and recovering low leakage after write operation rapidly. High reliability and uniformity are achieved in both read operation and write operation.
The reliability characterization is a milestone for the design of semiconductor power devices operating in those applications where a high robustness is a critical point, as in the case of the automotive field. In order to realize a reliability model that can describe the degradation of power devices, due to a cyclic thermo-mechanical stress, the Coffin-Manson equation is widely applied. Generally...
Wireless technologies such as WiFi and Bluetooth are widely used for mobile data communications. However, these technologies are affected by interference resulting from shared access to unlicensed frequency bands. Visible light communication is an alternative means for data exchange over an optical channel. It has several advantages over currently used radio-based technologies, including a full-duplex...
There are several standard methods for evaluating the performance of models for objective quality assessment with respect to results of subjective tests. However, all of them suffer from one or more of the following drawbacks: They do not consider the uncertainty in the subjective scores, requiring the models to make certain decision where the correct behavior is not known. They are vulnerable to...
For IoT applications that require near real-time wireless connections, the traditional TCP protocol is not adept enough due to the size of its packet header, its conservative Additive Increase Multiplicative Decrease (AIMD) congestion control algorithm and its slow start strategy. This paper mainly evaluates three kinds of reliable UDP-based transport protocols namely, RUBDP, UDT, and PA-UDP, for...
We propose a novel unified radio frame structure and medium access control (MAC) protocol for low-latency and highly reliable vehicle-to-X (V2X) communications. The radio frame structure enables short latency transmission and the unified device-to- device (D2D) communication for V2X services. The unified MAC protocol simultaneously enables the cellular-assisted and ad-hoc D2D communications to enable...
We daily add more devices and services into existing intelligent home networks. Consequently, various networking standards evolutions being experienced world over have not left home networks behind. These evolutions results in competition and depletion of the available limited resources. Consumers therefore, experience unavailable, unreliable and poor performing network both locally and remotely....
The emergence and evolution of any package technology is driven by market trends as experienced by the end application. With the maturation of the mobile market, the trends for Smartphone and other mobile devices are more than ever for lower cost. Meanwhile, a higher degree of functionality and performance, thinner profile, and longer battery life are some of the additional market drivers seen in...
Neighbour discovery is an important process in device-to-device (D2D) communications. In cellular networks, D2D discovery signals are multiplexed with cellular signals causing in-band emission interference (IEI). IEI degrades D2D user equipments (DUEs) discovery range and cellular user equipments (CUEs) throughput. In this paper, a new discovery method is proposed by applying power control strategy...
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