Title :
Identification and Cost Estimation of WIP Bubbles in a Fab
Author :
Hassoun, Michael ; Rabinowitz, Gad ; Lachs, Shlomi
Author_Institution :
Ben-Gurion Univ. of the Negev, Beer-Sheva
fDate :
5/1/2008 12:00:00 AM
Abstract :
We quantify the impact of work in process (WIP) bubbles on a semiconductor fab. As a preliminary step, we formalize the concept of WIP bubbles by decomposing them into local events of relatively acute and temporary WIP congestion. The local bubble is empirically identified and its impact on local waiting time distribution is assessed. We then estimate its marginal impact on the overall line waiting time and cost. Finally, a novel visualization tool for the bubble´s progression is proposed.
Keywords :
costing; semiconductor device manufacture; work in progress; WIP bubbles; cost estimation; local bubble; local waiting time distribution; semiconductor fab; work in process bubbles; Costs; Delay effects; Electronics industry; Helium; Humans; Lithography; Production management; Propagation delay; Semiconductor device manufacture; Visualization; Congestion; production management; semiconductors; work-in-process;
Journal_Title :
Semiconductor Manufacturing, IEEE Transactions on
DOI :
10.1109/TSM.2008.2000264
