Push-pull production planning of the re-entrant process

Young Hoon Lee, Byungjin Lee

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


Thin film transistor and liquid crystal display (TFT-LCD) fabrication manufacturing is characterised as a re-entrant process, in which a similar sequence of steps is repeated several times. Production control for the re-entrant process is complex, since, without intelligent control, it may incur the congestion of WIP or equipment idleness because of the work in progress (WIP) shortage. In this paper, three kinds of control policies are suggested: push, push-pull and pull types. Exact formulations using linear programming are given, and their performances of solutions are evaluated. It is shown that a pull type control policy gives stable throughput and delivery satisfaction at a small cost and with less production. A push type policy outperforms the other two types in the throughput and manufacturing cycle time.

Original languageEnglish
Pages (from-to)922-931
Number of pages10
JournalInternational Journal of Advanced Manufacturing Technology
Issue number11-12
Publication statusPublished - 2003

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Software
  • Mechanical Engineering
  • Computer Science Applications
  • Industrial and Manufacturing Engineering


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