Minimization of inspection cost in a Back-Lit-Unit (BLU) inspection system using a steady-state flow analysis

Minimization of inspection cost in a Back-Lit-Unit (BLU) inspection system using a steady-state flow analysis

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Article ID: iaor20103017
Volume: 15
Issue: 2
Start Page Number: 21
End Page Number: 30
Publication Date: Jun 2009
Journal: International Journal of Management Science
Authors: ,
Abstract:

In this paper, we address a problem for minimizing the number of items inspected in a back-light-unit (BLU) inspection system, which includes a K-stage inspection system, a source inspection shop, and a re-inspection shop. In order to formulate our objective, we make a steady-state flow analysis between nodes (or shops), and derive the steady-state amount of flows between nodes and defective rates by solving a nonlinear balance equation. We provide an enumeration method for determining an optimal value of K which minimizes the number of items inspected. Our methodology could be applied and extended to similar situations with slight modification.

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