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Intricacies of Time: Demystifying Factory Clock Synchronization and Time Stamping for E-Manufacturing



Ya-Shian Li-Baboud, Harvey Wohlwend, Lance Rist, Eric D. Simmon


Accurate clock synchronization and time stamping will play an increasingly significant role in ensuring data quality as the semiconductor industry faces an imminent data explosion and increasing pressure for equipment effectiveness. Accurately time-stamped data plays a fundamental role in data quality and security. Advanced process control capabilities such as Fault Detection and Classification (FDC) and run-to-run control will rely on accurate timing to maximize their effectiveness. As timing issues are not unique to the semiconductor industry, distributed clock synchronization solutions are available and evolving to meet current and future needs. This presentation will provide an educational overview of factors involved in clock synchronization and time stamping. Common timing issues and lessons learned from other industries as well as potential solutions arising from current and evolving standards will also be described. Proposals for industry efforts to effectively integrate mainstream synchronization solutions into the factory are also discussed.
Proceedings Title
AEC/APC Symposium
Conference Dates
September 26-29, 2005
Conference Location
Indian Wells, CA, USA


Li-Baboud, Y. , Wohlwend, H. , Rist, L. and Simmon, E. (2006), Intricacies of Time: Demystifying Factory Clock Synchronization and Time Stamping for E-Manufacturing, AEC/APC Symposium, Indian Wells, CA, USA (Accessed April 12, 2024)
Created August 31, 2006, Updated October 12, 2021