Abstract :
MPLM (Multi-Process Line Management) is a Fab scheduling, goaling, and reporting system At its core is an event-driven sequence of mathematical decision processes, which simulates Fab operation, considering all significant aspects. It employs a set of weighted parameters and optimization criteria, attempting to maximize output and utilization, and to minimize lot tardiness. MPLM produces entity based, lot specific work-plans. Reports aggregate the detailed scheduling plan into shift goals and work-plans, providing on-line monitoring of performance vs. plan at different levels of aggregation. Since implementation at our factory about seven months ago, average WIP velocity increased by 20% (equivalent to 20% throughput time, TPT reduction) while the Fab is fully loaded, with a steady, near 100% delivery performance of dozens of line items per week.
Keywords :
aggregate planning; innovation management; integrated circuit manufacture; mathematical analysis; optimisation; process monitoring; production management; scheduling; work in progress; TPT reduction; WIP velocity; aggregate; event-driven sequence; fab scheduling; goaling; mathematical decision processes; multiprocess line management; on-line monitoring; optimization; reporting system; tardiness; throughput time; utilization; weighted parameters; work-plans; Design engineering; Discrete event simulation; Job shop scheduling; Manufacturing automation; Manufacturing industries; Manufacturing processes; Mathematics; Production facilities; Qualifications; Resource management;
