Title
Operator Resource modelling in a Multiple wafer Sizes fabrication Environment using discrete Event simulation.
Abstract
Infineon Villach wafer fab facility has a unique characteristic of producing products of different wafer sizes with shared resources, both operators and tools. Daily adaptation of resource allocation to manage changing workloads is done dynamically and imposes challenges in providing high accuracy simulation forecast. In this paper, we discuss the modelling approach that we have taken to represent this dynamic feature, where resources are adjusted in simulation based on WIP situation. The concept is similar to acquiring KANBAN prior to running a production lot. KANBAN quantity is kept at a minimum number in low WIP situation, while the quantity is kept at maximum number at high WIP situation. These values were adjusted by studying the historical moves observed for a period of 3 months. Using this approach, we managed to improve the forecast quality by 7 percentage points in moves and 64 percentage points in WIP.
Year
DOI
Venue
2018
10.1109/WSC.2018.8632398
WSC
Field
DocType
ISSN
Kanban,Wafer,Semiconductor device modeling,Computer science,Simulation,Wafer fabrication,Resource allocation,Operator (computer programming),Throughput,Reliability engineering,Discrete event simulation
Conference
0891-7736
ISBN
Citations 
PageRank 
978-1-5386-6570
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Georg Seidel101.69
Patrick Preuss2124.16
André Naumann301.69
Soo Leen Low400.68
Chew Wye Chan500.68
Boon Ping Gan632934.25