• Title/Summary/Keyword: STI

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PCS Research and Development in Shinsegi Telecomm. Inc. (신세기통신의 PCS 연구개발현황)

  • 박용길;정동근;이도영
    • Information and Communications Magazine
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    • v.12 no.8
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    • pp.53-64
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    • 1995
  • In this article, criteria and considerations for selecting a domestic Personal Communications Services (PCS) system in Korea are presented and upbanded IS-95 Common Air Interface (CAI) is asserted to be appropriate as a result of evaluation by the criteria. And Shinsegi Telecomm, Inc. (STI) is claimed to be a suitable operator to provide PCS by upbanded IS-95 considering the experiences as the cellular operator adopting IS-95 CDMA technology. The PCS R&D plan and strategies of STI are given and the joint R&D plan with domestic manufacturers to develop PCS systems are explained. The results from R&D so far are mentioned. The PCS network architecture and various services-basic voice service, value-added services and wireless data services-are discussed.

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Simulations of Fabrication and Characteristics according to Structure Formation in Proposed Shallow Trench Isolation (제안된 얕은 트랜치 격리에서 구조형태에 따른 제작 및 특성의 시뮬레이션)

  • Lee, Yong-Jae
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.1
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    • pp.127-132
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    • 2012
  • In this paper, the edge effects of proposed structure in active region for high voltage in shallow trench isolation for very large integrated MOSFET were simulated. Shallow trench isolation (STI) is a key process component in CMOS technologies because it provides electrical isolation between transistors and transistors. As a simulation results, shallow trench structure were intended to be electric functions of passive, as device dimensions shrink, the electrical characteristics influence of proposed STI structures on the transistor applications become stronger the potential difference electric field and saturation threshold voltage.

A Method for Evaluating Product Degradation Status Using Product Usage Data (제품 사용데이터를 활용한 제품 열화상태 평가 방안에 대한 연구)

  • Shin, Jongho;Jun, Hongbae;Cattaneo, Cedric;Kiritsis, Dimitris;Xirouchakis, Paul
    • Korean Journal of Computational Design and Engineering
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    • v.18 no.1
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    • pp.36-48
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    • 2013
  • In general, the product is used under several circumstances including environmental and usage conditions. According to the circumstances, the product has various performance degradation processes. In order to optimize the lifecycle of product usage, it is important to observe the degradation process and make suitable decisions on product operations. However, there are not much research works in evaluating the degree of product degradation based on product usage data. Recently, due to emerging ICT (Information and Communication Technology) technologies, it becomes possible to get the product usage data. Based on the gathered data, it is possible to analyze the degree of product degradation. The analysis of product usage data can improve product use and product design with advanced decisions. To this end, this study addresses one approach based on FMEA/FMECA method, called PDMCA (Performance, Degradation Modes and Criticality Analysis) for evaluating product degradation status and making suitable decisions.

A Study on the Prioritization of Policy for Gendered Innovations

  • Hwangbo, Wonju;Park, Young Il;Lee, Heisook
    • Asian Journal of Innovation and Policy
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    • v.8 no.3
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    • pp.325-342
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    • 2019
  • Gendered innovation in Science, Technology and Innovation, which seeks better science for both men and women by integrating sex and gender analysis, has become an important issue in the entire process of STI, as initiated by the European Commission, Canadian Institutes of Health Research in Canada and the National Institutes of Health in the United States. Korea has also attempted to reflect gendered innovations in Science and Technology as a critical factor in the 3rd and 4th National Plan, followed by the Act on Women Scientists and Engineers (2002). Against this background, the aim of this study is to prioritize the policy instruments regarding gendered innovation in Research and Development. Through the Focus Group Interview (FGI) and the Analytic Hierarchy Process (AHP), this study attempts to set the priority among selected criteria, various types of policy instruments, and the applied research development area. As a result, this study shows the preparation of the relevant legal and institutional mechanisms for the full introduction of gendered innovation in S&T, and the importance of various policy instruments for S&T innovation in the fields of planning, budgeting, managing national R&D projects, evaluating and impact assessment, etc., being derived in a systematic way to ensure their effectiveness.

Effect of Slurry Characteristics on Nanotopography Impact in Chemical Mechanical Polishing and Its Numerical Simulation (기계.화학적인 연마에서 슬러리의 특성에 따른 나노토포그래피의 영향과 numerical시뮬레이션)

  • Takeo Katoh;Kim, Min-Seok;Ungyu Paik;Park, Jea-Gun
    • Proceedings of the Materials Research Society of Korea Conference
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    • 2003.11a
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    • pp.63-63
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    • 2003
  • The nanotopography of silicon wafers has emerged as an important factor in the STI process since it affects the post-CMP thickness deviation (OTD) of dielectric films. Ceria slurry with surfactant is widely applied to STI-CMP as it offers high oxide-to-nitride removal selectivity. Aiming to control the nanotopography impact through ceria slurry characteristics, we examhed the effect of surfactant concentration and abrasive size on the nanotopography impact. The ceria slurries for this study were produced with cerium carbonate as the starting material. Four kinds of slurry with different size of abrasives were prepared through a mechanical treatment The averaged abrasive size for each slurry varied from 70 nm to 290 nm. An anionic organic surfactant was added with the concentration from 0 to 0.8 wt %. We prepared commercial 8 inch silicon wafers. Oxide Shu were deposited using the plasma-enhanced tetra-ethyl-ortho-silicate (PETEOS) method, The films on wafers were polished on a Strasbaugh 6EC. Film thickness before and after CMP was measured with a spectroscopic ellipsometer, ES4G (SOPRA). The nanotopogrphy height of the wafer was measured with an optical interferometer, NanoMapper (ADE Phase Shift)

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A Study on STI Database Construction on Demand (이용 기반 데이터베이스 구축 방안에 관한 연구)

  • 조현양
    • Journal of the Korean Society for information Management
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    • v.17 no.2
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    • pp.155-170
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    • 2000
  • In this research, several ways of creating effective STI(Scientific & Technological Information) databases were suggested. We put emphasis on the selection of input data, while on the other was handled, such factors as standardization for data entry, data entry system, etc.. In order to decide priority of target data, the status of document delivery service was analyzed. The result shows that conference proceedings were given priority to academic journals. In case of journals, ranking in the number of documents requested at KORDIC (Korea R&D Information Center) and 16 Specialized Information Centers was compared with the ranking in citation frequency and impact factor, appeared at SCI.

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A Structural Analysis and Policy Recommendations on the Scientific and Technological Information (STI) in Korea (과학기술정보의 유통체제 구조분석 및 개선방향 : 산업기술정보원 (KINITI)과 연구개발정보센터 (KORDIC)의 비교를 중심으로)

  • 조찬식
    • Journal of the Korean Society for information Management
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    • v.12 no.2
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    • pp.103-126
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    • 1995
  • This study, through the use of the comparative method, intends to contribute to the effective and productive use of Korea's STI. This study first tries to understand the nature of ST1 as well as the development in the field of science and technology in Korea. And then, the historical background of the two leading ST1 centers. KINITI(Korea Institute of Industry & Technology Information) and KORDIC(Korea Research & Development Information Center), is described. Furthermore, the ST1 structures of KINITI and KORDIC are compared and analyzed in the light of their network, collection development, databases, and information services. Finally, based on these findings, this study tries to make some policy recommendations.

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