• 제목/요약/키워드: bottom-up process

검색결과 294건 처리시간 0.023초

Dual Damascene 공정에서 Bottom-up Gap-fill 메커니즘을 이용한 Cu Plating 두께 최적화 (Cu Plating Thickness Optimization by Bottom-up Gap-fill Mechanism in Dual Damascene Process)

  • 유해영;김남훈;김상용;장의구
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2005년도 하계학술대회 논문집 Vol.6
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    • pp.93-94
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    • 2005
  • Cu metallization using electrochemical plating(ECP) has played an important role in back end of line(BEOL) interconnect formation. In this work, we studied the optimized copper thickness using Bottom-up Gap-fill in Cu ECP, which is closely related with the pattern dependencies in Cu ECP and Cu dual damascene process at 0.13 ${\mu}m$ technology node. In order to select an optimized Cu ECP thickness, we examined Cu ECP bulge, Cu CMP dishing and electrical properties of via hole and line trench over dual damascene patterned wafers split into different ECP Cu thickness.

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상향식 방법을 이용한 산업 부분의 온실가스 배출량 산정 연구 (A study on the calculation of greenhouse gas from the industry sector using bottom-up methodology)

  • 안재호;안상전
    • 한국태양에너지학회 논문집
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    • 제30권6호
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    • pp.34-43
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    • 2010
  • Recently environmental regulations like the Kyoto Protocol, adopted in 1997, required the reduction of the greenhouse gas of 5.2% up to 1990 regulations. and 13th General Assembly in 2007, held in Bali of India, have agreed to duty reduction even in developing countries in 2013. Because of the lack of information about real process in small or middle size industries, most recent research omitted to calculate green house gas emissions from the industrial process. Bottom-up methodology will be applied for calculation of green house gasemission from industry sector to solve these problems in this research. Total amount from industry sector of Shicheung-City in 2007 was about 1,797,305 tons of greenhouse gas $CO_2$ and 3,049,403 tons of the greenhouse gas $CO_2$ calculated from industry sector of Ansan-City in 2007.

상향식 공정분석을 통한 국내 유리산업의 온실가스 인벤토리 산정 (Greenhouse Gas Emission Inventory Calculation of Korean Glass Industry through the Bottom-up Production Process Analysis)

  • 백천현;정용주;유종훈
    • 경영과학
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    • 제32권1호
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    • pp.101-111
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    • 2015
  • The glass production is classified into an energy intensive industry. This study develops a systematic procedure to derive Greenhouse Gas (GHG) emission inventory for the Korean glass industry. Based on the bottom-up approach in which the energy intensity in each production process is characterized, the EBs (energy balances) of glass production processes are derived. And the GHG emission is calculated for each of four types of glasses-flat glass, container glass, fiber glass, and LCD glass.

BOTTOM-UP MODEL FOR THE FORMATION OF GMC'S

  • SONG GUO-XUAN
    • 천문학회지
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    • 제29권spc1호
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    • pp.165-166
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    • 1996
  • A bottom-up model for the formation of GMCs is described, where the observed GMCs are the aggregates of less massive clouds. The aggregates are getting more and more massive in the process of consecutive collision between clouds.

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Robust Face Detection Based on Knowledge-Directed Specification of Bottom-Up Saliency

  • Lee, Yu-Bu;Lee, Suk-Han
    • ETRI Journal
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    • 제33권4호
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    • pp.600-610
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    • 2011
  • This paper presents a novel approach to face detection by localizing faces as the goal-specific saliencies in a scene, using the framework of selective visual attention of a human with a particular goal in mind. The proposed approach aims at achieving human-like robustness as well as efficiency in face detection under large scene variations. The key is to establish how the specific knowledge relevant to the goal interacts with the bottom-up process of external visual stimuli for saliency detection. We propose a direct incorporation of the goal-related knowledge into the specification and/or modification of the internal process of a general bottom-up saliency detection framework. More specifically, prior knowledge of the human face, such as its size, skin color, and shape, is directly set to the window size and color signature for computing the center of difference, as well as to modify the importance weight, as a means of transforming into a goal-specific saliency detection. The experimental evaluation shows that the proposed method reaches a detection rate of 93.4% with a false positive rate of 7.1%, indicating the robustness against a wide variation of scale and rotation.

PSC 연속 거더교의 연속화부 거동에 관한 해석적 연구 (Analysis of the Behaviors of Continuous parts in Continuous PSC Girders Bridges)

  • 구민서;김훈희;정영도
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2002년도 가을 학술발표회 논문집
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    • pp.404-411
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    • 2002
  • The PSC 2-span-continuous-bridge by Up-Down Method on construction process is used for this research. It is measured the strain of lower-steel-plate at continuous section on the active range of negative moment at the stage of introducing compressive stress to bottom-plate and compared with results of structural analysis. On the basis of these results, it is confirmed the introduced compressive stress tか bottom-plate. The object of this research is presenting the degree of continuity at the stage of lifting up process.

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CAD/CAM시스템을 이용한 상향식 가공에 의한 고효율가공에 관한 연구 (Research on High-Efficiency Machining through Bottom-up Machining using CAD/CAM System)

  • 정대훈;한규택
    • 한국기계가공학회지
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    • 제18권11호
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    • pp.89-95
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    • 2019
  • In this research, the effect of roughing on tool load through bottom-up machining is investigated through actual machining. Generally, through the use of high-speed machining technology, machining methods, such as general roughing, operate by deepening the cutting depth for as long as the tool is able to withstand it, giving a slower feed rate, less cutting depth, and faster feed. However, when the cutting depth is deep, there is a problem in that the stepped shape of the cutting area is increased (e.g., by the shaking of the tool or the chipping load). However, if the cutting is performed less, the cutting time becomes relatively long. To compensate for these drawbacks and extend the service life of the tool, economic efficiency needs to be secured.

상향식 모형을 이용한 국내 조선업의 온실가스 배출 분석 (A Bottom-up Approach for Greenhouse Gas Emission Analysis of Korean Shipbuilding Industry)

  • 백천현;김후곤;김영진;정용주
    • 경영과학
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    • 제31권1호
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    • pp.41-48
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    • 2014
  • This study presents a bottom-up approach for analyzing greenhouse gas (GHG) emissions for the shipbuilding industry in Korea. The overall procedures for deriving GHG emissions from the Korean shipbuilding industry are presented. Based on the long-term forecast on energy demands of the Korean shipbuilding industry, reference energy system (RES) and energy balance (EB) for the shipbuilding process are derived for bottom-up modeling.

ICANN의 진화과정 고찰을 통해 본 한국 인터넷주소 거버넌스의 개선방향 (An Overview of the Developments of ICANN Internet Governance and Some Recommendations for Korea)

  • 정찬모
    • 정보화정책
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    • 제19권3호
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    • pp.36-49
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    • 2012
  • 국제인터넷주소자원관리기구인 ICANN은 1998년 창설 이후 줄기차게 제기되어 온 미국 의존성에 대한 비판을 완화하기 위해 종래 미국 상무부와의 협약에만 역할의 정당성을 인정받던 방식에서 일부 탈피하여 국제인터넷공동체에 대한 책임성을 높이기 위하여 2009년 9월 30일 ICANN 운영에 대한 검토를 국제적인 독립 기구로부터 점검받는 것을 약속하는 형태의 '의무 확인' (Affirmation of Commitments)을 미상무부와 공동으로 행하였다. 이에 의해 설치된 4개 검토팀 중 하나인 '책임성 투명성 검토팀' (ATRT)은 2010년 12월 31일 27개의 권고사항을 발표하고 이사회는 이의 이행을 약속하였다. 이는 선진 인터넷 거버넌스를 지향하는 한국에 시사하는 바가 적지 않다. 특히, 국제 인터넷 거버넌스 체계에 있어 민간주도의 상향적 정책결정이란 특성과 국내제도의 정합성을 제고할 필요가 있다. 인터넷주소에 관련된 비정부, 민간조직의 의견을 적극적으로 수렴하는 '공식적인' 절차가 필요하다.

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신제도주의 관점에서의 한국 상향식 농촌지역개발사업 분석 (Analysis of the Bottom-up Rural Development Project viewed from the New Institutionalism in Korea)

  • 김정태;유병욱
    • 농촌계획
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    • 제21권3호
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    • pp.67-84
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    • 2015
  • Although the bottom-up rural area development project was conceived with great expectations, the general evaluation of the project so far reveals that it does not significantly differ from projects carried out in a top-down manner. This paper examines the nature of the bottom-up rural area development project with a focus on its background, including the roles of authority and project participants. Results revealed that the project was designed to be implemented in line with the state affairs ideology of the leader in a negative position of bureaucratic society. Though the form of implementation for the project seemed bottom-up as seen in the process of the roles and authorities in supporting organizations the top-down method of implementation can be seen in the authorities and roles of the central government. It was also noticed that the private sector, designed to elicit participation of various experts, looked to be managed and controlled by public organizations. The abovementioned signifies that the Korea rural area development project has been implemented not in a bottom-up manner but rather in an ever-strong top-down manner, which means that the central government holds more responsibility for the project's results, evaluation, and discussions. Furthermore, as seen in the background of the project, policies have been implemented in a top-down manner without the confidence of the bureaucratic society. Therefore, in order to implement a proper bottom-up rural area development project, there is a need for the bureaucratic society to have confidence in the rural societies.