• 한국IT서비스학회지
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• 제5권1호
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• pp.1-16
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• 2006

This paper analyzes the technical efficiencies of 40 Korean system integration firms using data envelopment analysis (DEA) and Malmquist productivity indices. Technical efficiencies on average had been decreased over the five year period and the efficiency difference between best practice firms and catch-up firms had been increased during this period, meaning that the industry structure has become matured and the possibilities for catch-up firms to be efficient are not remained so much. The differences in efficiency by the differences in ownership structures are statistically significant. It implies that the efficiencies of group-affiliated firms have come from benefits such as the captive market umbrellas, not from their own management competencies. In addition, the technical efficiency is highly correlated with captive market sales, information productivity, sales per employees, rates of value added, returns on invested capital, and EBITDA.

• JSTS:Journal of Semiconductor Technology and Science
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• 제4권3호
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• pp.182-188
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• 2004

We demonstrate a $2.1\;{\times}\;1.0\;{\times}\;0.1cm^3$ sized compact transmitter using LTCC System-in-Package (SiP) technology for 60GHz-band wireless communication applications. For low-attenuation characteristics and resonance suppression of the SiP, we have proposed and demonstrated a coplanar double wire-bond transition and novel CPW-to-stripline transition integrating air-cavities as well as novel air-cavities embedded CPW line. The fabricated transmitter achieves an output of 13dBm at a RF frequency of 62GHz, an IF frequency of 2.4GHz, and a LO frequency of 59.6GHz. The up-conversion gain is 11dB, while the LO signal is suppressed with the image rejection mixer below -21.4dBc, and the image and spurious signals are also suppressed below -31dBc.

• 한국IT서비스학회지
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• 제1권1호
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• pp.29-43
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• 2002

Having Efficient Contracting Laws and Regulations is one of the critical success factors for SI (System Integration) industry growth. This paper explores problems in contracting systems for SI business. Two perspectives have been used in this analysis. One is on law itself perspective, the other is on industry growth perspective. A comprehensive survey on contracting practices has been done, and the structure of SI industry has been analysed. Also, characteristics of SI contracting processes have been analysed. A framework for efficient contracting laws and regulations for SI industry has been discussed based on the characteristics of SI business and SI industry. Future research will be needed to expand the current framework and to examine the effectiveness of the proposed framework.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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• pp.119-123
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• 2004

This paper describes low temperature poly-Si (LTPS) TFT system on glass (SOG) technology developed in NEC. High resolution SOG-LCDs such as a 230 ppi reflective type LCD, a 2.5", 333 ppi 2D/3D autostereoscopic LCD, and a 2.1" single voltage driven full integration LCD for mobile applications and a 0.9", XGA light valve for projectors are reviewed from the perspective of the high resolution technologies

• 마이크로전자및패키징학회지
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• 제19권3호
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• pp.37-41
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• 2012

Cu 본딩을 이용한 웨이퍼 레벨 적층 기술은 고밀도 DRAM 이나 고성능 Logic 소자 적층 또는 이종소자 적층의 핵심 기술로 매우 중요시 되고 있다. Cu 본딩 공정을 최적화하기 위해서는 Cu chemical mechanical polishing(CMP)공정 개발이 필수적이며, 본딩층 평탄화를 위한 중요한 핵심 기술이라 하겠다. 특히 Logic 소자 응용에서는 ultra low-k 유전체와 호환성이 좋은 Ti barrier를 선호하는데, Ti barrier는 전기화학적으로 Cu CMP 슬러리에 영향을 받는 경우가 많다. 본 연구에서는 웨이퍼 레벨 Cu 본딩 기술을 위한 Ti/Cu 배선 구조의 Cu CMP 공정 기술을 연구하였다. 다마싱(damascene) 공정으로 Cu CMP 웨이퍼 시편을 제작하였고, 두 종류의 슬러리를 비교 분석 하였다. Cu 연마율(removal rate)과 슬러리에 대한 $SiO_2$와 Ti barrier의 선택비(selectivity)를 측정하였으며, 라인 폭과 금속 패턴 밀도에 대한 Cu dishing과 oxide erosion을 평가하였다.

• 한국전자거래학회지
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• 제2권1호
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• pp.131-151
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• 1997

The CALS/EC is the world-wide accepted concept and its application domain is being expanded continuously throughout the private and public sectors. One of the essential points for realization of CALS/EC is to promote the domestic system integration(SI) industry. This paper describes the present status of the domestic SI companies and the clues to solve their facing problems. In order to evaluate the status of the current SI technology, the MBNQA(Malcom Baldridge National Quality Award) is adopted. The surveyed results show that the average levels of 14 SI companies over 7 evaluation criteria turn out to be 30% through 40% point. The major projects' activities of the SI companies on the information systems over the areas of trade, science and technology, industrial manpower, health and welfare, national security, etc are explained. Also, the competitive power of the SI companies is also discussed. As a target sample, the Korea Telecom(KT) CALS model project is described in terms of its Progresses and Problems. Furthermore, the strategic plans and detailed research items are proposed to resolve on-going issues.

• 한국IT서비스학회:학술대회논문집
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• 한국IT서비스학회 2002년도 추계학술대회
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• pp.59-65
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• 2002

SI(System Integration)에 대해서 학문적으로 또는 실용적으로 다양한 개념정의와 분류체계가 사용되고 있으나 기술변화의 속도와 보편화되어 가는 정보통신기술의 사용 등으로 인해서 분류체계의 항목의 범위와 적용의 유연성에 있어서 문제를 드러내고 있으며 무엇보다도 신규 SI 사업자의 사업방식을 반영하는 분류체계를 필요로 하고 있다. 이에 본 논문에서는 SI 분야의 일반적인 특정과 부가가치 창출활동을 중심으로 SI의 개념을 확장하고 있다. 그리고 재정립된 개념을 바탕으로 국내 SI시장의 특징을 반영할 수 있는 새로운 SI산업 분류체계를 제시하고 있다.

• Asia pacific journal of information systems
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• 제11권2호
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• pp.99-119
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• 2001

The creation of knowledge is a major concern for knowledge management practice. In particular, effective knowledge creation is one of the critical success factor in SI(System Integration) industry. This paper designs a framework of effective knowledge creation methods for organizations in SI industry. First, we give a comprehensive survey on knowledge creation and discovery methods. And the structure of SI knowledge has been analysed. Also, characteristics of knowledge management processes of SI industry have been surveyed and analysed. A framework for effective knowledge creation of SI organization has been discussed based on the characteristics of SI knowledge and knowledge management processes. Organizational issues and theoretical issues of the methods have been discussed. Future research will be needed to expand the current framework and to examine the effectiveness of the proposed framework.

• 한국콘텐츠학회논문지
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• 제16권2호
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• pp.399-409
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• 2016

경상북도는 2015년 10월 도청을 이전하고 2027년 인구 10만의 진정한 자족도시 건설을 목표로 신도시를 조성하고 있다. 그러나 신도시는 행정구역이 이원화 되어 있는 관계로 도시건설에서부터 운영에 이르기 까지 많은 문제가 제기되고 있는 실정이다. 이와 같은 문제를 해결하기 위해 본 논문에서는 행정구역개편 추진위원회에서 발표한 지방행정체제 개편 기본계획 중 2012년 중점 과제로 선정된 시 군 구 통합에 관한 내용을 중심으로 연구 범위를 설정하고, 도청신도시가 건설되고 있는 안동시와 예천군을 연구대상으로 분석하였다. 주요 연구 내용은 지방행정체제 개편의 이론적 모델, 지방행정체계개편 기본계획, 안동시와 예천군의 행정구역 개편의 필요성과 방향을 분석하여 도청신도시가 정체성을 확립하고 지속가능한 경북의 신 성장 거점도시로 성장할 수 있는 방안으로 행정 구역 통합을 제안하였다.

• 한국소음진동공학회논문집
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• 제18권11호
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• pp.1111-1117
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• 2008

During the dynamic analysis of a system, the Coulomb friction law is emploved to calculate the friction force. Since the static friction coefficient is only employed during the zero relative velocity, it is impractical to employ the coefficient during the dynamic analysis. To calculate the static friction force, therefore, some friction models have been developed. In this study, the integration stability and the accuracy of the models are investigated with some numerical examples. The effect of time step size during the numerical integration is also investigated. The numerical study shows that the friction model employed for most commercial codes is not as good as the one proposed in this study.