Capacity management in a wafer fabrication plant

Details Capacity management in a wafer fabrication plant Capacity management in a wafer fabrication plant

2006-11-28

2006-11-28

Picard, Leo (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S103000, C700S121000, C705S002000

Reexamination Certificate

active

07142937

ABSTRACT:
In a wafer fabrication plant, the capacity management process10begins with identifying an initial capacity plan based on a demand plan (step12). For each Product Group in the initial capacity plan a consumption sensitivity factor is defined (step14). Next, a bottleneck capability variable is calculated (step16). The capacity boundaries for each of the product groups are next determined (step18). Thereafter, in the first of two branches, a determination of maximum wafer output is then performed for changing Product Group mixes to determine a maximum (step20). The Product Group mix giving maximum wafer output is then determined for the fabrication plant (step22). In the second branch, a determination of maximum profit is performed for changing Product Group mixes (step24), then the Product Group mix giving maximum profit is determined for the fabrication plant (step26).

REFERENCES:
patent: 5444632 (1995-08-01), Kline et al.
patent: 5950170 (1999-09-01), Pan et al.

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