Factory cycle-time prediction with a data-mining approach

Phillip Backus, Mani Janakiram, Shahin Mowzoon, George Runger, Amit Bhargava

Research output: Contribution to journalArticle

59 Scopus citations


An estimate of cycle time for a product in a factory is critical to semiconductor manufacturers (and in other industries) to assess customer due dates, schedule resources and actions for anticipated job completions, and to monitor the operation. Historical data can be used to learn a predictive model for cycle time based on measured and calculated process metrics (such as work-in-progress at specific operations, lot priority, product type, and so forth). Such a method is relatively easy to develop and maintain. Modern data mining algorithms are used to develop nonlinear predictors applicable to the majority of process lots, and three methods are compared here. They are compared with respect to performance in actual manufacturing data (to predict times for both final and intermediate steps) and for the feasibility to maintain and rebuild the model.

Original languageEnglish (US)
Pages (from-to)252-258
Number of pages7
JournalIEEE Transactions on Semiconductor Manufacturing
Issue number2
Publication statusPublished - May 2006



  • Due date
  • Scheduling
  • Statistical models
  • Work-in-progress (WIP)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Industrial and Manufacturing Engineering
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics

Cite this