MIT Libraries homeMIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Libraries
  • MIT Theses
  • Theses - Sloan School of Management
  • Management - Master's degree
  • View Item
  • DSpace@MIT Home
  • MIT Libraries
  • MIT Theses
  • Theses - Sloan School of Management
  • Management - Master's degree
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Cycle time reduction through wafer starts control

Author(s)
Wang, Sam, M.B.A. Massachusetts Institute of Technology
Thumbnail
DownloadFull printable version (8.590Mb)
Other Contributors
Leaders for Manufacturing Program.
Advisor
Stephen Graves and Deborah J. Nightingale.
Terms of use
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582
Metadata
Show full item record
Abstract
Intel's Fab 17, located in Hudson, Massachusetts, has experienced dramatic improvements in its cycle time performance in the last two years. These improvements have been attributed to lean implementation efforts, reduced tool variability, as well as other key initiatives. In its efforts to continuously improve cycle time and cycle time variability, a new methodology of conducting wafer starts was developed and pilot implementations were conducted. The new methodology was based upon the concept of Little's Law of Cycle Time = Inventory / Output, whereby controlling the level of inventory through wafer starts would positively impact cycle time performance. Thus, by monitoring the current Work-in-Process levels at selected areas of operations and contrasting it with the optimal levels based upon Little's Law, an appropriate level of wafer starts could be determined.Close collaboration between the manufacturing, engineering, and planning departments allowed for the creation and pilot implementations of the wafer starts control model. The pilot implementations were conducted in three separate phases, providing opportunities for data analyses and methodology improvements. Model parameters and logic were modified between each phase to better reflect actual fab realities and to achieve more effective outcomes. Positive results were observed during the pilot implementations, as cycle time variability (as defined by standard deviations) decreased and overall fab cycle time remained consistently lower, all during a period of increased production. As of the conclusion of the internship, Fl7 planned to adopt the wafer starts control model as part of its routine starts process.
Description
Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division; in conjunction with the Leaders for Manufacturing Program at MIT, 2008.
 
Includes bibliographical references (p. 55).
 
Date issued
2008
URI
http://hdl.handle.net/1721.1/44298
Department
Sloan School of Management.; Massachusetts Institute of Technology. Engineering Systems Division.; Leaders for Manufacturing Program.
Publisher
Massachusetts Institute of Technology
Keywords
Sloan School of Management., Engineering Systems Division., Leaders for Manufacturing Program.

Collections
  • Engineering Systems - Master's degree
  • Engineering Systems - Master's degree
  • Management - Master's degree
  • Management - Master's degree
  • Theses

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries homeMIT Libraries logo

Find us on

Twitter Facebook Instagram YouTube RSS

MIT Libraries navigation

SearchHours & locationsBorrow & requestResearch supportAbout us
PrivacyPermissionsAccessibility
MIT
Massachusetts Institute of Technology
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.