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Data Mining for Process and Quality Control in the Semiconductor Industry

  • Mark Last
  • Abraham Kandel
Part of the Massive Computing book series (MACO, volume 3)

Abstract

Like in any other industry, manufacturing departments of semiconductor plants are evaluated by their ability to meet the delivery schedules. However, the final quantities and the flow times of individual semiconductor batches are affected by multiple uncertain factors, like material quality, process variability, equipment condition, and others. Thus, the tasks of predicting the batch quality (measured by yield) and its total flow time are an important part of the production planning activities. Beyond prediction, the plant management is interested in identifying the main causes of yield excursion and process delays.

In this paper, we are applying several methods of data mining and knowledge discovery to WIP (Work-in-Process) data, collected in a semiconductor plant. The information on each manufacturing batch includes its design parameters, process tracking data, line yield, etc. The data is prepared for data mining by converting a sequential dataset into a relational format. Classification models for predicting line yield and flow times are built from the pre-processed data by using the Info-Fuzzy Network (IFN) methodology. Fuzzy-based techniques of automated perception are used for post-processing the data mining results. We conclude the paper with a critical evaluation of the discovered knowledge and the methods used.

Keywords

Data Mining Membership Function Mutual Information Association Rule Fuzzy Rule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • Mark Last
    • 1
  • Abraham Kandel
    • 2
  1. 1.Department of Information Systems EngineeringBen-Gurion UniversityBeer-ShevaIsrael
  2. 2.Department of Computer Science and EngineeringUniversity of South FloridaTampaUSA

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