반도체 장비 데이터 통신 네트워크의 성능평가에 관한 연구

박유진(You-Jin Park) 韓國生産管理學會 2015 한국생산관리학회지 Vol.26 No.3

반도체 산업에서 제조비용을 최소화하고 생산성과 수율을 보다 향상시키기 위해서는 새로운 공정기술의 개발뿐만 아니라 효과적인 장비 운영·관리기술의 개발과 적용이 필요하다(박유진과 황하란, 2013). 따라서 모든 반도체 관련 업체들은 보다 효율적으로 반도체 생산장비를 운영하고 관리하기 위해 다양한 활동을 지속적으로 수행하고 있다. 효율적인 장비 운영·관리를 위해서는 우선적으로 반도체 생산장비와 운영(제어)시스템간 또는 반도체 생산장비간의 데이터 통신 네트워크 성능이 매우 높아야 한다. 특히 차세대 반도체 웨이퍼인 450mm 웨이퍼 생산체제로 전환 시, 생산장비와 운영(제어)시 스템에서 발생하는 다양한 형태의 대용량 데이터를 안정적으로 수집·관리하고, 이를 제어하기 위한 시스템을 구축하는데 많은 노력을 기울이고 있다. 따라서 본 연구에서는 반도체 장비 데이터 통신 네트워크의 성능을 나타내는 여섯 가지 지표와 이러한 지표들에 영향을 미치는 세 가지 운영 변수들을 고려하여 통신 네트워크의 성능지표와 운영 변수들의 관계를 통계적으로 모형화한 후, 만족도 함수 최적화 기법과 탐색적 알고리즘들을 이용하여 통신 네트워크 성능을 평가하고 이를 통해 효과적인 네트워크 운영방안을 제시하고자 한다. In semiconductor industries, in order to improve productivity and yield, and also to minimize the production cost, it is necessary to develop effective operation and control techniques as well as to develop noble process technologies. So, semiconductor industries are carrying out diverse activities consistently for managing semiconductor process equipment efficiently. For efficient operation and control of semiconductor process equipment, performance of the data communication network between process equipment and the corresponding operating system or among process equipment must be highly excellent. In particular, when moving toward 450mm wafer fabrication system, semiconductor industries are trying to construct an organized system that collects and controls various and big-sized data generated from both equipment and operating system stably. Thus, in this research, after statistically modeling the relationship between key performance factors of communication network in semiconductor manufacturing system and operating parameters which influence key performance factors, we evaluate the performance of communication network and then propose effective network operating strategy using both desirability function optimization method and efficient heuristic algorithms.

Minimization of Total Weighted Earliness and Tardiness on a Single Burn-In Oven U sing a Genetic Algorithm

박유진,Park, You-Jin Society of Korea Industrial and System Engineering 2008 한국산업경영시스템학회지 Vol.31 No.4

본 연구는 반도체 제조공정에서 사용되는 단일 Burn-In oven에서의 Total weighted earliness와 Tardiness를 최소화하기 위한 생산 스케줄링을 결정하는 문제를 다룬다. 본 연구에서는 모든 작업은 상시에 시작가능하고 각각은 서로 다른 가중치를 가지고 있다고 가정하였다. 일반적으로 단일 Burn-In oven은 다양한 작업들이 동시에 가능한 Batch processing 기계이다. 따라서 다양한 작업들로 구성된 하나의 Batch의 Processing time은 그 Batch 내에 있는 가장 긴 Processing time을 가지는 작업에 의해 결정된다. 본 연구에서 Batch size는 미리 결정되지 않은 상황이라고 가정한 후, 최적의 Batch 개수와 작업의 순서를 결정하기 위해 유전자 알고리즘을 적용하였다. 수리적 예제를 통해서 다양한 접근방법의 성능들을 비교한 결과, 유전자 알고리즘이 Total weighted earliness와 Tardiness를 최소화하는데 가장 뛰어난 성능을 가지고 있음을 알 수 있다.

회원작품: 북서울 꿈의 숲 문화센타

박유진,Park, You-Jin 대한건축사협회 2010 建築士 Vol.2010 No.6

회원작품 - 서초동 1703-9

박유진,Park, You-Jin 대한건축사협회 2009 建築士 Vol.2009 No.12

성동구내 어린이집 원아 부모의 소아 한방치료에 대한 인식 및 이용에 관한 조사 연구

박유진,이슬지,윤지연,명성민,Park, You-Jin,Lee, Seul-Ji,Yoon, Ji-Yeon,Myoung, Sung-Min 대한한방소아과학회 2011 대한한방소아과학회지 Vol.25 No.1

Objectives: The purpose of this study is to examine the parental recognition and utilizing patterns of oriental medical care in children who live in Seong-Dong district. Methods 802 day-care center children's parents participated in the survey on recognition and utilizing patterns of oriental medical care, and 702 of the surveys were analyzed. Results: 1. 38.33% has received previous oriental medical treatments and most were received at the children's age under 12-24 months. Majority of the treatments took place in the clinical settings. By recommendation, some also received their treatment at the medical centers. One of the reasons why they receive oriental medical treatments was that they prefer to balance their treatment with the orental medical treatments along with the western's. 2. 53.85% of those who received oriental medical treatments were satisfied with their treatments. The effective treatment results were the major reason for the satisfaction. 3. 49.56% of those who had oriental medical treatments chose specific oriental medical facilities for the children's ailment. Most specific oriental medical facilities were local oriental medical clinics. Reputation fame were the main reason in choosing the clinics. 4. In 2009, 55.26% had received care in the specific oriental medical clinics for the diseases, such as respiratory symptoms, systemic symptoms, gastrointestinal symptoms, skin problems, neurological and psychiatric disease for infants, and respiratory symptoms, gastrointestinal symptoms, systemic symptoms, skin problems, neurological and psychiatric symptoms, urinary symptoms and musculoskeletal symptoms for toddlers. 5. The average duration of herbal treatment were 7-14 days, preferably 4-6 days, and preferred number of medical visits were once a week on Saturdays and preferred day for night cares were on Friday nights. Average treatment fee per treatment was less than 10,000 won which coincided with the preferred treatment fee per visit. 6. The very first medical institutions chosen by parents once their children are ill are the following; Western medical institutions, western medical clinics, pharmacies, oriental medical clinics, health centers, and lastly, oriental medical institutions. The major concerns in receiving oriental medical cares include pesticides in herbs and hazardous substances in heavy metals. Preferred form of oriental medicine was decoction, the negative feedback of oriental medicine was mostly due to the bitter taste of the oriental herbal decoctions. Preferred frequency of intake was twice a day with less than 10cc~20cc per single intake. Conclusions: Taken all together, we conclude that the growing recognition of Oriental Pediatric medicine is needed among parents.

성동구내 어린이집 어린이의 수면 및 식생활 실태와 성장과의 관련성에 대한 보고

박유진,윤지연,Park, You-Jin,Yoon, Ji-Yeon 대한한방소아과학회 2009 대한한방소아과학회지 Vol.23 No.2

Objectives : The purpose of this study is to examine sleeping patterns and diet patterns of the children in day-care centers in Seongdong-district and to find out the relationships between those two patterns and children growth. Methods : 686 day-care center kids participated in the examination. We measured their heights and weights. We also conducted a questionnaire survey (of them) on their sleeping patterns and diet patterns. Based on the findings, we have analyzed correlations of the factors. Results : 1. We have interviewed 686 children in day-care centers in Seongdong-district. Substantial survey was conducted to 672(14 kids didn't go through regular medical checkups). Their age ranged from 4 months to 120 months and weights covered from 6.20 kg to 50.80 kg with the average of 16.97kg. Their height ranges were from 70.4cm to 140.6cm and the average was 100.76cm. 2. The survey results showed that birth-height affects children's current height. The results from the group of age over 25months and the group covering 2 to 6 years indicated that birth-height affected the current height as well. However, the result from the age group over 37 months showed that birth-height didn't relate to the current height. 3. Results from questionnaires on sleeping patterns indicate that children sleeping longer are taller than the other. Results of other questionnaires showed no substantial relations to height. 4. Results from questionnaires on diet patterns, cold food eating habit affects growth. Conclusions : According to the results above, sleeping patterns substantially affects the growth. In order to find out, however, the specific relations between them, further research would be necessary.

성동구내 어린이집 어린이의 알레르기 질환과 허약아의 실태 및 관련성에 대한 보고

박유진,윤지연,명성민,Park, You-Jin,Yoon, Ji-Yeon,Myoung, Sung-Min 대한한방소아과학회 2010 대한한방소아과학회지 Vol.24 No.2

Objectives The purpose of this study is to find the relationships between the allergy and weakness in children in Seong-Dong district. Methods 802 day care centers children were participated for survey on allergic disease, risk factors, and weakness. From the result, we analyzed the relationships between the aforementioned factors. Results 1. 802 children were participated for the survey. We eliminated survey answers with unclear answers, and selected 792 survey sheets as our final subject of study. The age of majority of subjects(720 children) were between one to six years old, and the others were under the age of one and over seven. 2. The prevalence rate of asthma in a lifetime was 6.69%, allergic rhinitis was 14.87%, atopic dermatitis was 28.82%, allergic conjunctivitis was 6.29%, food allergies was 9.58%, and drug allergies was 1.4%. In 2009, the prevalence rate of allergies during treatments is 6.69% for asthma, 13.41% for allergic rhinitis, 13.64% for atopic dermatitis, 4.13% for allergic conjunctivitis, 5.23% for food allergies, 0.96% for drug allergies. 3. The significant risk factors were types of dwelling, pet with fur, dirty environments without vacuum cleaners, the numbers of times bed covers were washed, frequency of air ventilation, changes in body after moving, family history. 4. The distribution of the number of children with weakness within the five visceras were respiratory weakness, digestive weakness, psychoneurologic weakness, neuromotor weakness, and urogenital weakness in the order of most to the least. More specifically, children who only has respiratory weakness were the majority, while children who have respiratory and digestive weaknesses, children who have respiratory, digestive, and psychoneurologic weaknesses, children who have respiratory and psychoneurologic were followed. 5. With the exception of children with urogenital weakness, Most of the children with respiratory weakness, digestive weakness, psychoneurologic weakness, and neuromotor weakness had been treated for allergies in 2009, while children who were diagnosed with allergic diseases at least once in their lifetime most likely had weak respiratory, digestive or psychoneurologic systems. Conclusions The results of this study showed that there was a correlation between children with weak viscera and children with allergic diseases. However, further research would be necessary.

회원작품: 미야찌 코리아 사옥

박유진,Park, You-Jin 대한건축사협회 2011 建築士 Vol.2011 No.3

입방형 영역에서의 G-효율이 높은 Model-Robust 실험설계

박유진(You-Jin Park),이윤주(Yoon-Ju Yi) 대한산업공학회 2010 산업공학 Vol.23 No.2

The determination of a regression model is important in using statistical designs of experiments. Generally, the exact regression model is not known, and experimenters suppose that a certain model form will be fit. Then an experimental design suitable for that predetermined model form is selected and the experiment is conducted. However, the initially chosen regression model may not be correct, and this can result in undesirable statistical properties. We develop model-robust experimental designs that have stable prediction variance for a family of candidate regression models over a cuboidal region by using genetic algorithms and the desirability function method. We then compare the stability of prediction variance of model-robust experimental designs with those of the 3-level face centered cube. These model-robust experimental designs have moderately high G-efficiencies for all candidate models that the experimenter may potentially wish to fit, and outperform the cuboidal design for the second-order model. The G-efficiencies are provided for the model-robust experimental designs and the face centered cube.

도식구성도(Graphic Organizers)를 활용한 영어 동화 읽기 지도가 유아의 영어 학습 흥미도와 어휘력에 미치는 효과

박유진(Park You-Jin),정동빈(Jeong Dong-Bin) 한국영유아보육학회 2010 한국영유아보육학 Vol.0 No.61

본 연구는 만 4세 유아를 대상으로 동화책을 활용한 도식구성도(graphic organizers)의 학습지도방법을 적용한 유아영어학습자의 어휘학습 흥미도와 어휘력에 대한 실험관찰연구이다. 이를 통해 유아영어 학습자에게 도식구성도를 이용한 교수 학습모형을 제시하고 어휘학습의 성취도와 정의적 영역에서 미치는 학습흥미와 동기의 영향에 대해 고찰하기 위해서 서울시 G유치원 유아(5.6세, 평균 546개월) 47명을 대상으로 실험반과 비교반으로 나누어 실시하였다. 본 연구에서 도식구성도를 이용한 유아영어학습자의 영어어휘 학습에 대한 효과분석 결과는 다음과 같다. 첫째, 도식구성도를 이용한 어휘학습은 전통적인 어휘 학습지도 방식보다 유아의 학습자에게 더 학습의 흥미를 일으킨다. 둘째, 도식구성도를 이용한 어휘학습은 학습의 성취도면에서 전통적인 어휘학습 방식보다 유아의 학습자에게 효과적으로 나타났다. 따라서 동화책을 활용한 도식구성도의 학습지도 방법은 유아학습자에게 있어 학습을 주도적으로 길러주며 학습을 효과적으로 길러주는데 효과적인 교수ㆍ학습방법임을 알 수 있다. 따라서 유아영어교육현장의 유아교사들은 도식구성도를 활용한 수업 커리큘럼을 활용하여 다양한 교수 학습 방법을 유아들에게 제공해야 할 것이다. The purpose of the present study was to find out the effect of English vocabulary learning of storybooks by young children with teaching application of graphic organizers. This study employed an experimental research method, where two classes of the equivalent language abilities and interest in English were chosen as research samples by pre-test. The subjects were 47 six-year-old young children at an English kindergarten in Seoul. The research lessons were conducted 10 times over a period of 16 weeks. In the experimental group, students took storybook lessons using graphic organizers, while the controlled group was taught storybooks based on a Communicative Language Teaching; CLT. The results of this study were as follows: Firstly, there was a statistically significant difference in the reading test results between the two groups. The experimental group learning English with storybooks using graphic organizers displayed a higher level of improvement in their English interest than the controlled group taught through CLT. Secondly, the two groups showed a statistically significant difference in their motivation. The group learning English with storybooks using graphic organizers displayed a higher level of improvement in English than the group taught through CLT. Thirdly, the difference between the two groups in English achievement was statistically significant. The group learning English with storybooks using graphic organizers showed a higher level of increase in their English achievement than the group taught through CLT. From these findings, we can conclude that English learning with storybooks using graphic organizers is relatively more effective for young children to improve their vocabulary abilities and interest in English than storybook lessons based on CLT.