Dispatch Configuration
Configuration projects are quoted on a fixed price basis for each site, and typically include:
Dispatch rule and factor configuration.
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Training.
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Dispatch list feed to the MES (if applicable).
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Dispatch Factors
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Batch code at the current tool.
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Lot priority.
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Downstream tool priority.
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Current tool FIFO.
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Current tool idle time.
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Downstream batch efficiency.
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Critical ratio.
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Earliest-due-date.
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Current step processing time.
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Remaining processing time.
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Current step qualified tool count.
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Up to five other site-specific factors.
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FabTime Dispatching Module
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Do you struggle to balance lot priorities and due dates with tool
utilization and moves goals?
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Do your critical bottleneck tools ever starve?
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Do you use standard dispatch rules, but feel that your
fab’s situation is more complex, requiring custom blended rules?
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Do you know how well your fab executes your dispatching strategy?
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FabTime’s dispatching module is an add-on to our
web-based digital dashboard software.
At any point, for any tool in your fab, FabTime will show
you the list of all lots qualified to run on that tool.
This list will be ordered by the dispatching logic that
your site has selected for that tool. This logic can use
standard dispatch rules such as Priority-FIFO and Critical
Ratio. However, you can also create custom dispatching logic
using any combination of dispatch factors (shown to the left).
You can display dispatch lists in FabTime, and/or export
them back to your MES. FabTime also includes a dispatch
reservation system to hold downstream tools when a lot is
started on an upstream tool, as well as dispatch performance
reporting.
FabTime Dispatching Module Benefits
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Ensure that wafers needed by management are in fact the wafers that are run, while requiring less manual intervention on the part of management.
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Improve delivery to schedule, and the display of performance to schedule.
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Document the dispatching logic used by the best operators and make this available to all shifts.
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