Flexible planning model for fabrication with high volume and high mixture
AssigneeSkyworks Solutions, Inc.
InventorEddy Martin Delgado Arana
Life of this patent
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Abstract
Described herein are, among others, systems and methods associated with electrical test planning in a semiconductor manufacturing context. Within an electrical test planning system in the semiconductor industry, various models that allow a better utilization of installed capacity were developed. The workflow in the plant and the information flow in the electrical test planning area were analyzed to reduce or minimize setup times on the equipment. A paradigm shift is disclosed, with which planning is done at the product family level instead of at the level of the part number, starting with priority products required by the market.
Claims20
A method for scheduling production in a flow shop, the method comprising:
- grouping products into families based on geometric similarities;
- within a family, grouping products into lots;
- prioritizing lots within individual families;
- determining a constraint on production capacity by analyzing a number of functioning machines in the flow shop;
- determining a constraint on raw materials associated with production by analyzing a quantity of available raw material;
- generating a production schedule that reduces changeover times by ordering lots within individual families;
- and
- updating the production schedule to produce an updated production schedule responsive to a determination that the production schedule violates the determined constraint on production capacity or the determined constraint on raw materials.
A planning system configured to generate a production schedule, the planning system comprising:
- a family module configured to group products into families based on geometric properties;
- a priority module configured to prioritize lots within individual families;
- a constraints module configured to determine a constraint on production capacity by analyzing a number of functioning systems in a flow shop and to determine a constraint on raw material by analyzing a quantity of available raw materials;
- a scheduling module configured to generate a production schedule that reduces changeover times by ordering lots within individual families based on priority and geometric similarity and to update the production schedule to produce an updated production schedule responsive to a determination that the production schedule violates the determined constraint on production capacity or the determined constraint on raw materials;
- and
- a controller configured to control operation of one or more modules of the planning system.
Dependencies are inferred from the claim text.