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21 Resources for

manufacturing and institute for operations research

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Module-Based Modeling of Flow-Type Multistage Manufacturing Systems Adopting Dual-Card Kanban System
A systematic procedure of module-based modeling is designed and proposed to develop a simulation of any flow type multistage manufacturing system adopting especially the dual-card Kanban system. First, functional analysis is performed to present kanban flows exactly in the same fashion in a simulation model as they are actually appeared...
Tags: Research & Development, modeling, manufacturing, supplier, workstation, analysis
White papers 2004-11-11
Using Autonomous Modular Material Handling Equipment for Manufacturing Flexibility
This paper describes a modular autonomous material handling equipment solution for flexible automation. Discrete Event Simulation is in this case used as a tool for shortening time spent in many different phases of a manufacturing systems lifecycle. The paper presents the concept of autonomous modular material handling equipment, and how...
Tags: PRODUCTIVITY, knowledge, tool, manufacturing
White papers 2004-11-11
A Queuing Network Approximation of Semiconductor Automated Material Handling Systems: How Much Information Do We Really Need?
Queuing networks are sometimes used to model material handling in flexible manufacturing systems. The paper explores the use of a closed queuing network model to approximate an intraday automated material handling system AMHS in semiconductor manufacturing. Rather than solving the model analytically, it proposes simulating it. The classification aids modelers...
Tags: Semiconductors, semiconductor, Semiconductor Manufacturing, manufacturing, network
White papers 2004-11-11
Nonlinear Regression Fits for Simulated Cycle Time vs. Throughput Curves for Semiconductor Manufacturing
This paper illustrates an example of the use of a metamodeling approach to simulation through an example of two real world semiconductor manufacturing systems. The approach aims at reducing the amount of simulation work necessary to generate high quality cycle time-throughput (CT-TH) curves. The paper specifically focuses on demonstrating that,...
Tags: Semiconductors, Semiconductor Manufacturing, manufacturing, semiconductor
White papers 2004-11-11
Improving the Performance of Dispatching Rules in Semiconductor Manufacturing by Iterative Simulation
This paper considers semiconductor manufacturing processes that can be characterized by a diverse product mix, heterogeneous parallel machines, sequence-dependent setup times, a mix of different process types, i.e. single wafer vs. batch processes, and reentrant process flows. It uses dispatching rules that require the estimation of waiting times of the...
Tags: Semiconductors, Semiconductor Manufacturing, semiconductor, manufacturing, performance, job
White papers 2004-11-11
Simulation-Based Advanced WIP Management and Control in Semiconductor Manufacturing
The paper develops a hierarchical distributed production planning and control methodology, called DISCS, for a large and unstable semiconductor manufacturing process. The upper layer of DISCS periodically optimizes work-in-process inventory WIP levels to meet demands and sets a target WIP level for each workstation. One of key technologies required for...
Tags: Semiconductors, Semiconductor Manufacturing, semiconductor, manufacturing, workstation
White papers 2004-11-11
The Role of Process Simulation and Scheduling Tools in the Development and Manufacturing of Biopharmaceuticals
Pharmaceutical manufacturers generally employ either organic synthesis or biotechnology. Each of these technologies has unique challenges, but batch process simulation and scheduling tools can facilitate process development in both. Batch process simulation is distinct from both traditional chemical process simulation and dynamic simulation and is uniquely suited to pharmaceutical processes....
Tags: pharmaceutical company, biotechnology, manufacturing, tool
White papers 2004-11-11
Information Structure to Support Discrete Event Simulation in Manufacturing Systems
Discrete Event Simulation DES is ranked among the top three tools for management support. However, it lags in becoming the successful tool in the industry that many experts have predicted. In this paper, sixteen projects accomplished in the area of DES have been analyzed in order to find the reasons...
Tags: PRODUCTIVITY, manufacturing, tool, decision-making, industry
White papers 2003-10-31
A Simulation-Based Design Framework for Automated Material Handling Systems in 300mm Fabrication Facilities
This paper describes a methodology to tackle the problem of designing Automated Material Handling Systems AMHS for 300mm wafer fabrication facilities. The proposed framework divides the design process into two levels: architectural and elaborative. Prior to the design, fab data are preprocessed using simulation of manufacturing operations. The output data...
Tags: decision-making, manufacturing
White papers 2003-10-31
A Hybrid Approach to Manufacturing Enterprise Simulation
Manufacturing enterprise decisions can be classified into four groups: business decisions, design decisions, engineering decisions, and production decisions. Numerous physical and software simulation techniques have been used to evaluate specific decisions by predicting their impact on the system as measured by one or more performance measures. This paper focuses on...
Tags: Semiconductors, semiconductor, manufacturing, technique, benefit, performance
White papers 2003-10-31
Resident-Entity Based Simulation of Batch Chamber Tools in 300mm Semiconductor Manufacturing
This paper describes a resident-entity based pilot simulation study of a class of tools used in 300mm semiconductor manufacturing known as the wets tools or the wet benches. The paper develops a simulation model for the wets processing area that is based on the resident-entity paradigm, but makes use of...
Tags: PRODUCTIVITY, Semiconductors, Semiconductor Manufacturing, semiconductor, manufacturing, tool, modeling
White papers 2003-10-31
Automobile Manufacturing Supply Chain Simulation in the Grids Environment
Supply Chain is the series of activities that an organization uses to deliver value to its customers. In today's competitive environment, the globalization of markets has rapidly substituted the traditional integrated business. The competitive success of an organization no longer depends only on its own efforts, but relies on the...
Tags: Supply chain management (SCM), supply chain, globalization, middleware, environment, collaboration, manufacturing
White papers 2003-10-31
Design, Development and Application of an Object Oriented Simulation Toolkit for Real-Time Semiconductor Manufacturing Scheduling
Real-time scheduling of semiconductor manufacturing operations, semiconductor test operations in particular, is complicated due to the following factors; multi-head resources, multi-level hardware dependency, temperature and hardware criteria, dynamic determination of processing time and indexing time, batch processing and re-entrant flow. This paper reviews the work done in the development of...
Tags: Semiconductors, Semiconductor Manufacturing, semiconductor, object-oriented, hardware, manufacturing
White papers 2002-11-15
The Definition and Potential Role of Simulation Within an Aerospace Company
Simulation software has reached a technological level that provides high flexibility and integration capabilities necessary for product design, development and manufacturing efficiency. Within the manufacturing industry, this simulation potential has not been fully recognized, although it is now becoming a matter of interest through the documented benefits it has provided....
Tags: integration, manufacturing, product design, aerospace, data management, benefit, environment
White papers 2001-11-14
A Simulation Case Study of Production Planning and Control in Printed Wiring Board Manufacturing
Production planning and control in printed wiring board PWB manufacturing is becoming more difficult as PWB's technology is developing and the production routings become more complex. Simultaneously, the strategic importance of delivery accuracy, short delivery times, and production flexibility is increasing with the highly fluctuating demand and short product life...
Tags: Product marketing, product life cycle, customer service, manufacturing, board
White papers 2001-11-14
Structural Analysis of Manufacturer Pricing in the Presence of a Strategic Retailer
Consumer goods manufacturers usually sell their brands to consumers through common independent retailers. Theoretical research on such channel structures has analyzed the optimal behavior of channel members under alternative assumptions of manufacturer-retailer interaction Vertical Strategic Interaction. Research in Empirical Industrial Organization has focused on analyzing the competitive interactions between manufacturers...
Tags: Retail, Manufacturing, retail company, manufacturer, decision support system, pricing strategy, brand
White papers 2001-09-20
Using Simulation to Support Implementation of Flexible Manufacturing Cell
A simulation model was developed and tested using Taylor II to justify the implementation of a Flexible Manufacturing Cell FMC. The current production capacity at the existing Continuous Flow CF assembly line must be increased and among other proposals, a FMC is highly recommended. Simulation models are developed tested, verified,...
Tags: manufacturing, performance
White papers 2000-11-13
A Basic Study on Autonomous Characterization of Square Array Machining Cells for Agile Manufacturing
In this study, a manufacturing system locating machining cells in a square array is considered as an agile manufacturing system that can cope with a variety kinds production with varying volumes. Each cell can process any work whose machining operations for each work are divided into some operation groups common...
Tags: cell, characterization, manufacturing
White papers 2000-11-13
Understanding the Impact of Equipment and Process Changes With a Heterogeneous Semiconductor Manufacturing Simulation Environment
This paper describes a heterogeneous simulation environment for understanding how equipment and process changes affect the performance of a wafer fabrication facility. This integrated tool incorporates response surface models that describe process behavior, operational and optimization models of equipment behavior, and a discrete-event simulation model of factory operations. Thus, the...
Tags: PRODUCTIVITY, Semiconductors, Semiconductor Manufacturing, tool, semiconductor, performance
White papers 2000-11-13
Productivity Modeling of Semiconductor Manufacturing Equipment
Optimizing a semiconductor wafer fab requires balancing technology and productivity. Recent work on productivity modeling will be described and focus on discrete event simulation models of unitary tool, modules, and whole fab. In addition, some related cost-modeling aspects will be presented. The presentation provides a case study performed to analyze...
Tags: Research & Development, PRODUCTIVITY, Semiconductors, fab, modeling, Semiconductor Manufacturing, tool, semiconductor
White papers 2000-11-13