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Evaluating Sheet Metal Nesting Decisions
(1998)
This paper describes models that estimate the cost and time of sheet metal punching when nesting (batching) orders. These models help decision-makers plan production and evaluate the impact of changing the nesting policy. ...
Integrated Manufacturing Facility Design
(1995)
This dissertation addresses for the first time the integrated problem of designing the manufacturing shop layout concurrently with its material handling system. Specifically, this study provides a method to derive shop ...
Integrated Dynamic Simulation of Rapid Thermal Chemical Vapor Deposition of Polysilicon
(1997)
A physically-based dynamic simulator has been constructed to investigate the time-dependent behavior of equipment process, sensor, and control system for rapid thermal chemical vapor deposition (RTCVD) of polysilicon from ...
Polysilicon RTCVD Process Optimization for Environmentally- Conscious Manufacturing
(1996)
In the semiconductor manufacturing industry, optimization of advanced equipment and process designs must include both manufacturing metrics (such as cycle time, consumables cost, and product quality) and environmental ...
A User Interface for Discrete Optimization-Based Tradeoff Analysis
(1998)
The motivation of this thesis is to perform research in the arena of discrete tradeoff analysis. There are two fundamental aspects to the problem domain to be be studied. The first involves modeling the manner in which the ...
Run-to-Run Control Methods Based on the DHOBE Algorithm
(1999)
Many run-to-run (RtR) control methods have been developed in recentyears. Two particular set-valued RtR control schemes based on the Dasgupta-Huang OptimalBounded Ellipsoid (DHOBE) algorithm are introduced. Compared to ...
Randomized Difference Two-Timescale Simultaneous Perturbation Stochastic Approximation Algorithms for Simulation Optimization of Hidden Markov Models
(2000)
We proposetwo finite difference two-timescale simultaneous perturbationstochastic approximation (SPSA)algorithmsfor simulation optimization ofhidden Markov models. Stability and convergence of both thealgorithms is ...
Current Research on Manufacturing Shop and Material Handling System Design
(1995)
The importance of the manufacturing shop design in the successful operation of a production system is well known and as a result, significant research has been devoted to this area. This paper reviews important literature ...
A System to Test Rescheduling Algorithms
(1998)
As part of the ongoing research in operations research, new reschedulingalgorithms are constantly being invented. Until now, however, the testingand analysis of these algorithms was unstandardized. The method forcomparing ...
Improving Cluster Tool Performance by Finding the Optimal Sequence and Cyclic Sequence of Wafer Handler Moves
(2000)
The research aims to develop algorithms that can minimize the total lot processing time (makespan) of cluster tools used for semiconductor manufacturing. Previous research focuses on finding an optimal sequence of wafer ...