• Title/Summary/Keyword: Film Market

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A Study on the Market and Technology Development Trends of Thin Film Solar Cells (박막 태양전지 시장전망 및 기술개발 동향)

  • Chun, H.S.;Kim, J.H.;Heo, P.S.
    • Electronics and Telecommunications Trends
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    • v.24 no.4
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    • pp.135-146
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    • 2009
  • 박막 태양전지(Thin Film Solar Cells)는 기존의 결정질 실리콘 태양전지와는 달리 유리 등 저가의 기반을 활용하고 표면에 박막으로 실리콘 등 재료를 증축시킨 2세대 태양전지이다. 그동안 변환효율이 실리큰형보다 낮아 건물 외벽이나 기둥 등 일부 용도에만 사용이 국한되었다. 그러나 최근 들어 제조과정에 에너지가 적게 소모되어 짧은 기간 내에 투자비용을 회수할 수 있고, 소재비용도 대폭 줄일 수 있는 등 뛰어난 경제성으로 인해 태양전지 업체들이 투자를 늘리고 신규업체가 진입하는 등 박막 태양전지가 유망 태양전지 아이템으로 부상하고 있다.

Technology Trends and Prospects of Silicon Solar Cells (실리콘 태양전지의 기술현황 및 전망)

  • Park, Cheolmin;Cho, Jaehyun;Lee, Youngseok;Park, Jinjoo;Ju, Minkyu;Lee, Youn-Jung;Yi, Junsin
    • Current Photovoltaic Research
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    • v.1 no.1
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    • pp.11-16
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    • 2013
  • The current solar cell industry is experiencing a temporary plateau due to a sluggish economy and oversupply. It is expected that the solar industry can see similar growth to that of the recent past by overcoming the current situation, as there is growing demand globally for solar energy. The current situation led to restructuring of the world's solar industry, and domestic firms will need to have competitiveness through strategic approaches and proprietary technology to survive in the global solar market. Crystalline and amorphous silicon based solar cells have led the solar industry and occupied half or more of the market thus far. They will do so in the future PV market as well by playing a pivotal role in the solar industry. In this paper, the current status and prospects of silicon based solar cells, from materials to comprehensive and high efficiency technology that can emerge in the future, are discussed.

A Study on the Psychological Responses by the change of Illuminance and Color temperature in LED (LED 광원의 색온도와 조도 변화에 따른 심리반응 연구)

  • Yi, Yon-Soo;Ha, Mi-Kyoung
    • Korean Institute of Interior Design Journal
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    • v.21 no.6
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    • pp.129-136
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    • 2012
  • As the importance of eco-friendly and energy saving issues are emphasized in lighting as consciousness about energy saving is elated worldwide, demand for natural resources such as gas increases, supply of LED lighting is spread. Owing to white LED's development and price fall. It is expected to LED High Luminance Emitting Diode. LED's brightness and long life-time that surpass fluorescent light in the latest as well as is used by back light source of thin film LCD, low electric power attrition rate by advantage do and widen the market at the world lighting lamp market that is potential market. Accordingly, study about suitability of LED lighting is activated but space that apply actual LED lighting fixtures yet is less and advanced researches about LED fixtures' applied apaces are slight compared to existing light source up to now because is not many on this. The result of the experiment shows similar tendency with the existing light sources'. Through a psychological reaction experiment in the LED lighting experiencing space that can control of color temperature and lighting level, this study is wished to use to the data for lighting design of space that LED lighting fixtures are applied hereafter.

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Development of the Korean Film Industry and Its Spatial Characteristics: Gangnam Region of Seoul as A New Cluster in A New Renaissance? (한국 영화산업의 발전과 공간적 집적 특성: 새로운 부흥의 중심지로서 서울 강남지역의 등장 ?)

  • Choo Sung-Jae
    • Journal of the Korean Geographical Society
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    • v.41 no.3 s.114
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    • pp.245-266
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    • 2006
  • This study aims to explain the emergence of Gangnam Region of Seoul as a new cluster of the Korean film industry in the context of its history of growth, recent development characteristics, and its production system. Statistical analyses of Korean industries and in-depth interview surveys to film producers were conducted. The results of the analyses show that there has been obvious tendency of film makers' move from Chungmuro, a traditional cluster of the Korean film industry, to Gangnam and many births of new film makers in Gangnam. This new cluster, however, is operating on informal networking between film makers and related personnel, not on formalized production system composed of specialized functions and labor market. Therefore, it can be called as loosely-articulated cluster. This form of cluster has much to do with production milieu of Gangnam, such as advantages of obtaining information and consumer trend, diverse atmosphere which makes it easier to meet diverse people, favorable environment to embed creativity and fresh idea, etc. This trend of the film industry to orient a specific area can be explained in conjunction with the uniqueness of the film industry, such as uncertainty, project-based work, generation gap between film makers, participation of large companies or increasing size of investment.

DEVELOPMENT OF PACKAGING MACHINE FOR FRUITS AND VEGETABLES

  • Park, J.R.;Cho, N.H.;Choi, S.M.;Cho, Y.K.;Yang, H.C.
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 2000.11c
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    • pp.729-735
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    • 2000
  • Moisture loss of fresh fruits and vegetables is a main cause of deterioration. It resulted not only in the direct quantitative loss, but also in change in appearance, texture and nutrition. To reduce the loss of moisture content during the distribution in the market, fresh products are packaged using plastic films. But, most of the fresh products are packaged manually in Korea. In order to minimize the labor requirement, the packaging machine for fruits and vegetables was developed and tested. Prototype was composed of film feeding unit, bag former, products feeding conveyor, film feeding roller, center sealer, end sealer and discharge conveyor. Green peppers, carrots and perilla leaves were tested with prototype. Prototype could pack 1780, 1390, 1780 bags per hour at the feeding speed of 0.08m/s respectively and 2250, 1810, 2640bags per hour at the feeding speed of 0.10m/s respectively. And packaging speed of green peppers and carrots was improved by 3.7 and 3.4 times compared with manual packaging. The packaging condition with the prototype was good and the products had almost no damages.

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YBCO - film production by thermal co-evaporation for microwave and electrical power applications

  • Prusseit, W.;Semerad, R.
    • 한국초전도학회:학술대회논문집
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    • v.10
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    • pp.145-145
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    • 2000
  • Large area YBCO - films are series produced by thermal co-evaporation using a deposition scheme known as Garching process, which allows intermittent oxygen supply in a high vacuum ambient by an oxygen cup spaced closely underneath the moving substrates. The deposition area of 9" diameter is capable to handle very large wafers up to 8" diam. or numerous smaller wafers. The large distance between substrates and boat sources and an elaborate heater design guarantee excellent film uniformity over the entire deposition area. YBCO - films deposited by this technique are commercially fabricated for a variety of applications - the most prominent are resistive fault current limiters and microwave filters for mobile or satellite communications. IMUX and OMUX - filters are currently space qualined by Robert Bosch GmbH and are expected to be launched and installed on an experimental platform of the international space station ALPHA in 2001. Both of the above applications require quite different film specifications on the one hand, but at the same time extremely high uniformity and reproducibility on the other hand, since hundreds of YBCO - films are combined to large systems or have to be approved for manned space missions. The success of such projects is direct evidence that the technique of thermal evaporation is readily capable to meet these high demands and has become the major deposition technique to support the emerging HTS market.

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Improvement of COF Bending-induced Lead Broken Failure in LCD Module (LCD Module내 COF Bending에 따른 Lead Broken Failure의 개선)

  • Shim, Boum-Joo;Choi, Yeol;Yi, Jun-Sin
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.21 no.3
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    • pp.265-271
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    • 2008
  • TCP(Tape Carrier Package), COG (Chip On Glass), COF(Chip On Film) are three methods for connecting LDI(LCD Driver IC) with LCD panels. Especially COF is growing its portion of market place because of low cost and fine pitch correspondence. But COF has a problem of the lead broken failure in LCD module process and the usage of customer. During PCB (Printed Circuit Board) bonding process, the mismatch of the coefficient of thermal expansion between PCB and D-IC makes stress-concentration in COF lead, and also D-IC bending process during module assembly process makes the level of stress in COF lead higher. As an affecting factors of lead-broken failure, the effects of SR(Solder Resister) coating on the COF lead, surface roughness and grain size of COF lead, PI(Polyimide) film thickness, lead width and the ACF(Anisotropic Conductive Film) overlap were studied, The optimization of these affecting manufacturing processes and materials were suggested and verified to prevent the lead-broken failure.

Thermal Stability of Self-formed Barrier Stability Using Cu-V Thin Films

  • Han, Dong-Seok;Mun, Dae-Yong;Kim, Ung-Seon;Park, Jong-Wan
    • Proceedings of the Korean Vacuum Society Conference
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    • 2011.02a
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    • pp.188-188
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    • 2011
  • Recently, scaling down of ULSI (Ultra Large Scale Integration) circuit of CMOS (Complementary Meta Oxide Semiconductor) based electronic devices, the electronic devices, become much faster and smaller size that are promising property of semiconductor market. However, very narrow interconnect line width has some disadvantages. Deposition of conformal and thin barrier is not easy. And metallization process needs deposition of diffusion barrier and glue layer for EP/ELP deposition. Thus, there is not enough space for copper filling process. In order to get over these negative effects, simple process of copper metallization is important. In this study, Cu-V alloy layer was deposited using of DC/RF magnetron sputter deposition system. Cu-V alloy film was deposited on the plane SiO2/Si bi-layer substrate with smooth surface. Cu-V film's thickness was about 50 nm. Cu-V alloy film deposited at $150^{\circ}C$. XRD, AFM, Hall measurement system, and AES were used to analyze this work. For the barrier formation, annealing temperature was 300, 400, $500^{\circ}C$ (1 hour). Barrier thermal stability was tested by I-V(leakage current) and XRD analysis after 300, 500, $700^{\circ}C$ (12 hour) annealing. With this research, over $500^{\circ}C$ annealed barrier has large leakage current. However vanadium-based diffusion barrier annealed at $400^{\circ}C$ has good thermal stability. Therefore thermal stability of vanadium-based diffusion barrier is desirable for copper interconnection.

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Freshness of Paprika Packed with PLA Films (개발 PLA 필름으로 포장한 파프리카의 신선도)

  • Park, Hyung-Woo;Kim, Sang-Hee;Lee, Sun-Ah
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.17 no.1
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    • pp.7-11
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    • 2011
  • This research was conducted to compare the quality of paprika ($Capsicum$ $annuum$ L.) packed with PLA film and OPP/PE film pouches during storage at $6^{\circ}C$. Weight loss of paprika fruit was higher in OPP/PE film pouches, mold decay was shown in OPP/PE pouches after 6 days, but was not yet shown in PLA pouches. Hardness decreased in all packages. Soluble solid content was highest in PLA1 film pouch, vitamin C content was also highest in PLA2. Mold decay was not shown in PLA pouches after 9 day, but shown at calyx of paprika fruit in OPP/PE pouches. Off-flavor was strong in the OPP/PE pouches when the pouches were opened, decay was also serious in the same pouches after 15 days and thus quality was inadequate for sale in market.

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Characterization of Off-flavors from Film-Packed Soybean Sprouts (필름 포장된 콩나물의 유통 중 축적되는 이취의 종류 및 발생 특성)

  • Cho Kyoung-Shim;Kim Yong-Ho;Lee Young-Sang
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.51 no.3
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    • pp.220-226
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    • 2006
  • Soybean sprout is a traditional food and its market circulation as packed in a transparent film is increasing. To characterize the off-flavor produced from film-packed soybean sprouts, harvested soybean sprouts were stored at different temperature and oxygen conditions, and time-series changes in heads pace $O_2,\;CO_2$, ethanol (EtOH) concentrations as well as sensory off-flavor levels were measured. Lower temperature resulted in lower consumption of $O_2$, lower production of EtOH and less off-flavor. No off-flavors could be detected when atmospheric $O_2$ concentration was maintained over 4%, while alcoholic-flavor and off-flavor were initiated when $O_2$ decreased down to 2% and 1%, respectively. Under low $O_2$ conditions alcoholic-flavor following EtOH production preceeded prior to sensory off-flavor detection. Various aldehydes and fatty acids such as nonylaldehyde, decylaldehyde and stearic acid were identified by GC/MS from film-packed sprouts producing off-flavors. In conclusion to suppress off-flavor, soybean sprouts should be packed in a film which can control $O_2$ concentration over 2% and stored at low temperature around $4^{\circ}C$.