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WSC
2008

Priority mix planning for cycle time-differentiated semiconductor manufacturing services

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Priority mix planning for cycle time-differentiated semiconductor manufacturing services
Semiconductor fabs often offer manufacturing service of multiple priorities in terms of cycle time-based X-factor targets (XFTs) and fab production must be planned accordingly. This paper studies a priority mix planning (PMP) problem that determines the wafer release rates of individual priorities to maximize fab profit subject to XFT and capacity constraints. It is formulated as a nonlinear programming problem, where the constraints integrate an extended M/G/m:PR queue approximation with contribution theory-based network for modeling how Xfactors of individual priorities are affected by priority mix and fab capacity utilization. It is then demonstrated over a realistic fab example that PMP problem can be solved for effectively planning priority mix and machine tool capacity utilization to provide cycle-time differentiated manufacturing services.
Shi-Chung Chang, Shin-Shyu Su, Ke-Ju Chen
Added 02 Oct 2010
Updated 02 Oct 2010
Type Conference
Year 2008
Where WSC
Authors Shi-Chung Chang, Shin-Shyu Su, Ke-Ju Chen
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