• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.491-492
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• 2008

According to high-speed large scale integration trend of Memory module product, many type of noises, such a reflection, cross-talk simultaneous switching noise, occur on the Package PCB and they make the deterioration of memory module's performance and reliability. As module products have more high efficiency, Hardware of test board and socket has to be considered In test of the high-speed Memory Module. we mainly focused on improvement of Signal integrity Using the High Frequency Test socket that we invented

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2001.04a
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• pp.983-987
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• 2001

This paper deals with an automated computer-aided process planning system by which designer can determine operation sequences even if they have little experience in process planning of wheel bolt products by a multi-stage former. The approach to the system is based on knowledge-based rules and a process knowledge base consisting of design rules is built. Knowledge for the system is formulated from plasticity theories, empirical results and the empirical knowledge of field experts. Programs for the system have been written in AutoLISP for the AutoCAD using a personal computer and are composed of two main modules. An attempt is made to link programs incorporationg a number of expert design rules to form a useful package. Results obtained using the modules enable the designer and manufacturer of wheel bolt product to be more efficient in this field.

• Transactions on Electrical and Electronic Materials
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• v.9 no.1
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• pp.33-37
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• 2008

This paper describes the development of a new $5.0{\times}3.2mm$ SAW filter bank which is consist of 12 L, C matching components and 4 SAW bare chips on PCB substrate with CSP technology. We improved the manufacturing cost by removing the ceramic package through direct flip bonding of $LiTaO_3$ SAW bare chip on PCB board after mounting L, C passive element on PCB board. After that we realized the hermitic sealing by laminating the epoxy film. To confirm the confidentiality and durability of the above method, we have obtained the optimum flip bonding & film laminating condition, and figured out material property and structure to secure the durability & moisture proof of PCB board. The newly developed super mini $5.0{\times}3.2mm$ filter bank shows the superior features than those of existing products in confidence, electrical, mechanical characters.

• Proceedings of the Korea Contents Association Conference
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• 2013.05a
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• pp.409-410
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• 2013

본 연구조사결과 영유아 세치제 패키지 디자인의 중요도는 포장디자인(일러스트, 패턴)는 약간중요가 28%, 포장디자인(라벨) 약간중요가 42%, 제품의 신뢰성 약간중요 46%, 제품의 안정성 약간중요 46% 로 나타났다. 영유아 세치제 패키지디자인에 색채 분석결과 유기농 제품의 경우 KS 6.25Y 2/2라는 안정된 색상을 45.37%사용하였고 딸기 ? 세치제는 KS 1.25YR 7/2 색상, KS 계통색 연한 자줏빛 분홍을 43.2% 사용하여 캐릭터와 딸기라는 것을 패키지 디자인으로 드러냈다. 본 연구 결과 영유아 세치제 패키지 디자인 색채분석을 통해서 영유아 세치제의 구매 동향 분석과 포장디자인의 개선을 위한 후속연구가이루어 져야 할 것이다.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.26 no.3
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• pp.24-30
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• 2012

A proposed the electrical fan heater using induction heating is innovative system which applied IH(Induction Heating) magnetic induction heating generated from induction-heated metallic package and high-frequency power circuit technique for thermal converse technique. In this occurs not burning, so that the working environment and deterioration of products can be improved. The existing heater that low efficiency by heated resistance or using fossil fuel of coal, diesel, kerosene has problems about burden for high cost price. In this paper are compared efficiency the existing heaters and designed electrical fan heaters using 3[kW]-Class full-bridge resonant inverter. In addition, action analysis and application of system are discussed.

• IE interfaces
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• v.20 no.1
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• pp.21-32
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• 2007

This paper deals with the simulation model for A-Mart logistic center design and operations. In developed simulation model, receiving docks, conveyor sorter, conveyor system, shipping docks, material handling devices and manual sorting stations are considered. Three types of cargo such as transfer center cargo, distribution center cargo and supermarket cargo are considered. The simulation model and process animation are developed using the simulation package ARENA. Among various design and operation alternatives consisting of the number of workers of receiving dock, allocation of receiving docks by cargo types, conveyor sorter velocity, the number of folk-lift, the number of manual sorting operators and overall layout, the best alternatives of each subsystem are selected by simulation analysis. The major performance measures such as sorter throughput, utilization of operators at each station, receiving docks utilization and folk-lift utilization are considered for the alternative evaluation.

• The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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• v.24 no.2
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• pp.23-34
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• 2013

Over the past several decades in the microelectronics industry, devices have gotten smaller, thinner, and lighter, without any accompanying degradation in quality, performance, and reliability. One permanent and deniable trend in packaging as well as wafer fabrication industry is system integration. The proliferating options for system integration, recently, are driving change across the overall semiconductor industry, requiring more investment in developing, ramping and supporting new die-, wafer- and board-level solution. The trend toward 3D system integration and miniaturization in a small form factor has accelerated even more with the introduction of smartphones and tablets. In this paper, the key issues and state of the art for system integration in the packaging process are introduced, especially, focusing on ease transition to next generation packaging technologies like through silicon via (TSV), 3D wafer-level fan-out (WLFO), and chip-on-chip interconnection. In addition, effective solutions like fine pitch copper pillar and MEMS packaing of both advanced and legacy products are described with several examples.

• The monthly packaging world
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• s.278
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• pp.54-67
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• 2016

농식품 패키지디자인과 브랜드 개념은 이미 90년대 중반부터 중요성을 인식하고 있었으나, 생산자 위주의 포장디자인과 유사브랜드의 개발로 차별성이 없고 경쟁력이 떨어지고 있다. 특히 오늘날과 같이 고객의 요구가 다양해지고 시장이 세분화 되고 있는 상황에서 농산물도 품질, 기능, 가격 등의 차별화만으로는 더 이상 경쟁력을 확보할 수 없고, 다른 상품과 달리 소비자가 쉽게 구매결정을 하는 저관여제품이므로, 더욱 더 포장디자인의 역할이 중요하다고 볼 수 있다. 외국의 포장디자인의 현황 및 일본의 성공적인 6차 산업과 포장디자인의 사례를 분석한 후 농촌산업의 활성화를 위한 포장디자인의 발전 전략을 제안하고자 한다. 농산물 포장디자인의 기대효과는 농업의 고부가가치화, 농가소득 증대, 농촌경제 활성화를 위한 농촌산업화 전략이다. 이를 위해 체계적인 방안을 모색하여 차별화할 수 있는 연구를 지속적으로 진행하고, 특히 상품판매를 위한 포장디자인은 농산물 소비량 증대와 농촌경제를 성장시키는 중요한 역할을 하므로 이에 대한 전략 방안을 제시하였다.

• Asia pacific journal of information systems
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• v.11 no.4
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• pp.155-173
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• 2001

This study identified CSFs(Critical Success Factors) for successful ERP system implementation in small and medium firms, and empirically tested relationship between CSFs and user performance. Survey questionnaires were distributed via email & fax to 142 firms that have implemented ERP systems. Out of 52 responded questionnaires, 46 data sets were available for statistical analysis with SPSSWin8.0. CEO's participation, vendor support & service, securing human resources, effective use of software, and hardware capacity were identified as CSFs from factor analysis. Among those factors, vendor support & service and effective use of software were related to user performance, and the relationship was shown to be statistically significant. Study results also showed that user performance of ERP system was significantly different among those surveyed firms when ERP system package products were used as a simple proxy measure of independent variable.

• Journal of the Korean Society of Food Culture
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• v.10 no.4
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• pp.357-366
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• 1995

This study was undertaken to investigate college students' perception and preference of Korean traditional foods during November in 1994. 493 students in Taejon area were asked to fill out the questionaires. The collected data were analyzed by SAS package. The average height and weight were 173.04 cm, 64.46 kg for male and 161.73 cm, 49.33 kg for female. Students living their own home were 48.8% and self-lodging students were 30.2%. Male have a meal for hunger and female for pleasure (p<0.002). They choose their foods based on the taste (84.6%) and nutrition (8.2%). 85.5% of students prefer Korean traditional foods. Most students think that the Korean traditional foods should be succeeded and developed. However, they want the taste of Korean traditional foods to be changed for their preference. Kimch'i is the most favorate fermented foods. The fermented fish products and jang-atchi are the most unfavorate ones. They don't like too salty taste and strong smell of the Korean fermented foods.