1,721,251 research outputs found
Prediction of Characteristics of Future Scaled 3D NAND Flash Memory by Using TCAD and SPICE
No full textIn this work, we predicted the characteristics of 3D NAND Flash for lateral and vertical scaling by using simulation tools such as TCAD and SPICE. We fitted our SPICE models to TCAD results, and then we developed a model which predicts the on-current (I-on), threshold voltage (Vth), and subthreshold swing (S.S.) with according to lateral scaling. We also analyzed the program efficiency with scaling the thickness of tunneling oxide by using SPICE. Finally, we predicted I-on with increasing number of word-line layers.N
The Impact of Trust on Intention to use in Virtual Communities according to Customer Type
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A review in thermal management for advanced chip packaging from chip to heat sink
No full textAs the architectural complexity of semiconductor devices increases, energy-efficient thermal management in semiconductor packages has become a significant challenge. The effectiveness of thermal management dictates the performance and reliability of semiconductor packaging, making it a crucial factor in the design of highperformance and high-density systems. This review provides a detailed overview of recent advances in thermal management solutions for semiconductor packages, with a particular focus on heat conduction from the chip to the heat sink. The review first introduces advanced thermal characterization techniques, which are essential for evaluating the passive thermal performance of chip packages. It then explores the use of high thermal conductivity materials in various components, such as thermal interface materials (TIMs), heat spreaders, and package substrates, all of which are critical for improving heat dissipation. Additionally, the review examines design aspects aimed at enhancing heat removal rates, including interface engineering between dissimilar components and the incorporation of thermal vias within a package. The aforementioned approaches can be combined to optimize overall thermal performance in semiconductor packages, requiring careful material selection and appropriate thermal engineering design.
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
SNQL: A Query Language for Sensor Network Databases
No full textDatabase management in the wireless sensor network requires features that are different from the traditional database management. Data are collected from a massively large number of battery-operated sensor nodes in a wireless network. A large amount of dynamically changing data should be temporally queried and collected from the sensor nodes of multiple layers. In this paper, we focus on devising a new query language, SNQL that is efficient in dynamic data collection and energy-saving for massively large sensor networks. To minimize the energy consumption SNQL reduces unnecessary query executions for nodes by adaptive query operations to dynamic environments. SNQL also introduces a querying mechanism of controlling the quality of collected data in association with node selection strategy to minimize the energy consumption for the entire sensor network. We show how the language constructs in SNQL achieve the intended energy efficiency and further show the performance evaluation result
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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