This study is intended to evaluate a risk of overseas construction companies. To achieve this, a survey was empirically carried out to overseas construction site experts. The results were as follows. The relative importance of parent factors showed that‘social culture’(0.157) was the highest, followed by ‘institutional regulation’(0.150),‘environment’(0.145),‘productivity’ (0.142),‘economic finance’(0.137),‘market condition’(0.136) and‘political policy’(0.133). As for the above-mentioned findings, the most important risk factor in overseas construction was social culture of entry countries, followed by construction-related legal system. All construction companies, contractors and design companies said that social culture was the most important parent factor, varying from construction industry. And they said that workforce availability was also the most important in the importance of sub-factors, followed by conflict due to the differences in lifestyle. Consequently, it is important to manage risk for socio-cultural factors in overseas construction, risk for double workforce, and risk for the differences in thinking or lifestyle by the participation of multinational workforce.
Semiconductor is one of the biggest export items in Korea and one of future foods. In this study, the development of the product due to the repetition of the engineer mistakes repeatedly occurred due to the experience and habit of the individual in the semiconductor design process until now, resulting in an increase in the development period of the product and the economic loss of sales. As a result, the need for database of engineers' knowledge and know-how has emerged. This study investigate show to integrate and utilize data that is not managed on On/off-line for semiconductor knowledge and know-how. To do this, we intend to construct a RCT(RootCauseTracker) system that enables statistical analysis of the data on design failure accumulated over the previous year in any company.
Semiconductor processes are mainly divided into FAB process, package and test. The FAB process is promoting smart factories over a long period of time. The situation of the package and test process is manual, but there is a wafer testing process that prepares the latest topic "SmartFactory". The purpose of this study is to study the key variables for the completion of the material allocation scheduling system which will be the base environment of the smart factory in the wafer test process and to build the system based on the designed research model.
This study applied the self-protected maintenance activities of the TPM activities that are implemented as a means of ensuring operability of the facility as a result of maintenance of facilities and maintenance. 1 STEP is to achieve the basis and systemic management of the equipment preservation by maintaining the initial cleaning, maintenance of the 2nd STEP source, filling the TDEP cleaning tank, filling the TDEP function 6 STEP functions, maintaining the overall STEP Independent Inspection, 6 STEP Independent Inspection, and SEEP Independent Management. Based on the introduction of the TPM activities by the Tire Automation Center, the analysis of the environment, personnel and facility changes was analyzed by the implementation of the TPEP activity at the site of the project. As a result, productivity improvements and facility management have become important. It is expected that the application of the TPM activities to the automated manufacturing plant will be implemented and enforced to enhance competitiveness through enhancing vitality and facility efficiency.
In order to secure competitiveness of companies in the semiconductor industry, state management of equipment is one of the most important key factors. Particularly, after carrying out preventive maintenance (PM) work to maintain the best equipment condition, process reliability inspection is carried out. This work must be performed manually by the intervention of the operator. This inspection work is becoming more and more difficult due to the difficulty of the manufacturing worker, the increase of the simple repetitive workload, and the increase of the inspection items for the engineer, as the condition and the procedure continuously change as the semiconductor scaling down. Therefore, we would like to carry out an empirical study on the construction of an automatic inspection system in order to carry out the more reliable and efficient inspection procedure by eliminating the problems and unreasonableness of the past based on the investigation and analysis of the work procedures and conditions of the existing manual method.
This study is intended to look into the effects of employee's working environment on work loss and productivity in overseas construction sites of Korean construction companies. To achieve this, a survey was empirically carried out to overseas construction site experts. The results were as follows. The weight by 5 loss factors of overseas construction projects showed that project management environment was the highest, followed by construction company environment, owner environment, government support environment and entry country environment, which the biggest work loss factor was the project management section. The weight by loss factors of entry country environment showed that local environment was highest, followed by social environment, economical environment, political environment and cultural environment. In other words, awareness and management of weak social bases, which are not well-institutionalized as properties of most preferred loss, are important in that local environment of new entry countries is the most important thing. As for the above-mentioned findings, the most important project management of overseas construction projects will need to take advantage and have know-how for construction companies' ability to cope with a crisis or the most preferred management and loss prevention of owner environment, government support environment and entry country environment.
The company's most important goal is to generate revenue. Managers want to lower prices, improve quality, and increase productivity. So many innovative activities have been developed. Businesses must perform management innovation. But many companies fail due to the difficulties of innovation. POSCO developed QSS with advantages such as TPS(Toyota Production System), TPM(Total Quality Management), Six Sigma, and IE(Industrial Engineering). The KOREA government spread QSS activities to enterprises. QSS activities are applied to manufacturing companies through training and activities, and basic capacities, maintenance capabilities, and improvement capacities are evaluated before and after the evaluation. An empirical study on BPR of companies through QSS innovation.
The background of this study is to establish a systematic development process for SSD(Solid State Drive) which is being watched as the next generation auxiliary memory device and to make stable production. In order to do so, we select the two products that have been developed and classify and analyze all defects generated in each product by type and process of defects. The root cause of the fault and its background were reflected in the contradiction matrix of TRIZ's technical contradiction, and the improvements suggested in the 40 inventive principles were reflected in the test case design methodology of each process. Finally, this study suggests a process optimization method for systematic development.
As a result of frequent occurrence of serious industrial accidents due to chemical substances, Korea Occupational Safety & Health Agency has been implementing the PSM system (process safety management) since 1996, and the target sites are required to submit process safety reports. In the semiconductor business, which is becoming smaller and more integrated as the technology advances, many of these hazardous chemicals are used. Most of the semiconductor sites are PSM target sites, and many devices are included in the PSM target equipment. This study optimizes the introduction and setup process of new equipments in the semiconductor workplace using harmful hazardous materials, and conducted an empirical study on the improvement of the safety risk, focusing on the S group semiconductor business, and applied the common standard of work under the PSM system This is an example of improving the risk of leakage of toxic gas components and waste of rework by arranging functions and risks in the space centering method
In order to promote social responsibility, a company reads to engage in various activities to increase their competitiveness to ensure stable and continuous development. One of the activities is to input human/material resources in order to draw and develop the core abilities of member for the productivity improvement of the company. This study is concerned with capability improvement of members in relation to core company performance, the focus of the study is to identify how education training in a company may contribute to team performance by leaning transfer through empirical study. As a result of this study, it was found that the personality of members, as well as the training programs, within the company can be a significant factor for improving productivity and performance of the company. In addition, team members noted that learning transfer take place when effectively lead through the leadership of a boss and identified that this leadership ultimately has a significant effect on team performance.
The traditional Kanban needs a lot of preconditions for fitting conditions of dynamic production processing environment. The traditional Kanban isn't suitable conditions of dynamic production processing environment. Therefore conditions of dynamic production processing environment is needed more stable system. This study is describe CONWIP system such as suitable in dynamic production processing environment. Most Pull system is a Kanban system than use Kanban cards or signal for production management and inventory control. The object of Kanban system is reducing inventory between shop-floor that can reduce inventiry cost. If the system reduce the number of Kanban cards would be reduce the working process WIP, can be reduced and can be found all potential problem of production between shop-floors. This study apply to CONWIP system model for Korean industrial companies.
Each method for economic evaluation has its own characteristics. Therefore adoption of each of them in evaluation production investment project results in many problems. Hence combination & modification of them are required to perform more accurate evaluation about investment project. This paper discuss evaluation method of investment projects expansion and replacement investment on each line or individual in the production. Generally investment evaluation method has add to a few method by Subsidiary means with use a especial method. And then in this paper, a Taguchi Techniques is presented, which may be effective to the facilities appraisal or improvement. We propose a decision model to incorporates the values assigned by a group of experts on different factors in production. Using this model, SN ratio of taguchi method for each of subjective factors as well as values of weights are used in this comprehensive method for reducing production rate in production management.
반도체 제조 시스템에 대한 다양한 상황과 관련한 연구는 많지 않다 게다가, 모든 상황에 항상 적합한 생산시스템 전략은 없다. 반도체 제조공정 시스템에 대한 스케줄은 생산공정의 재진입, 공정의 높은 불확실성, 급속하게 변하는 제품과 기술과 같은 특성 때문에 반도체 제조공정시스템에 대한 스케줄은 복잡하고 어려운 작업이며, 사이클타임의 절감 및 단위시간당 생산량의 증대와 같은 시스템 목적을 달성하기 위하여, 반도체 제조 시스템에 대한 좋은 방법을 발견하기 위한 많은 연구가 있었다. 반도체 산업의 생산 흐름은 가장 독특한 특징을 가지고 있으며 생산계획과 반도체 제조의 스케줄링과 계획을 어렵게 하고 있다. 각각 다른 단계에 있는 자재는 같은 장비의 사용을 위해 경쟁을 하는데, 이로 인하여 작업시간 보다 단지 기다리는 시간에 상당한 시간을 할애하고 있다. 따라서 본 연구에서는 선행 연구를 바탕으로 반도체 공정에 모듈 생산방식을 접목시켜 공정의 사이클 타임을 줄이고, WIP를 최소화하여, 생산량을 최대화는 방안을 제시하고 공정 모듈 시스템 (Process Modular System)을 구축하고자 한다.
Even in the present situation where any general criterion on CRM dose not exist, utilization of CRM is expected to be actively continued, which will cause many problems. In this regard, evaluating CRM counts. As the result, projects are being suspended and budgets cut, plans for introducing CRM suspended or cancelled and many CRM software vendors and technical consulting firms are facing serious management crisis. Yet, this phenomenon can be regarded as an interim one. In fact, some cases that successfully introduced CRM show that CRM is migrating from small scale which is typical when introduced to larger scale through various tests. Therefore, this study tries to segment customer for the sloving the problem. And it make efficient customer management. Using this model, SN ratio of taguchi method for each of subjective factors as well as values of weights are used in this comprehensive method for customer. A example is presented to illustrate the model and to show a rank reversal when compared to a model that does not eliminate extreme values and eliminates the highest and lowest experts' values allocating the weights and the subjective factors.