Title

Throughput performance analysis for closed-loop vehicle-based material handling systems

Authors

Authors

D. Nazzal;L. F. McGinnis

Comments

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Abstract

A computationally effective analysis of the throughput performance of a closed-loop multi-vehicle automated material handling system (AMHS) used in highly automated 300 mm wafer fabrication facilities (fabs) is presented. A probabilistic model is developed, based on a detailed description of AMHS operations, and the system is analyzed as an extended Markov chain. The model represents vehicle operations on the closed-loop considering the possibility of vehicle blocking. This analysis provides essential parameters such as the vehicle blocking probabilities and the throughput capacity of the AMHS. A numerical example is analyzed and simulated using AutoMod to demonstrate and validate the stochastic model.

Journal Title

Iie Transactions

Volume

40

Issue/Number

11

Publication Date

1-1-2008

Document Type

Article

First Page

1097

Last Page

1106

WOS Identifier

WOS:000258774000009

ISSN

0740-817X

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