Geometry-based scheduling of fabrication with high volume and high mixture
AssigneeSkyworks Solutions, Inc.
InventorEddy Martin Delgado Arana
Life of this patent
Estimating the term…
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 having a plurality of different part numbers and geometries into a plurality of families such that, within a first family, products with a first part number have a length and a height that respectively differ by less than 10% from a length and a height of products with a second part number that is different from the first part number;
- for each family, grouping all products having identical part numbers into respective lots resulting in a plurality of lots for each family, the first family including a first lot for products with the first part number and a second lot for products with the second part number;
- and
- generating a production schedule wherein the plurality of lots are ordered within each family to minimize changeover times.
A planning system configured to generate a production schedule for a flow shop, the planning system comprising:
- a family module configured to group products having a plurality of different part numbers and geometries into a plurality of families such that, within a first family, products with a first part number have a length and a height that respectively differ by less than 10% from a length and a height of products with a second part number that is different from the first part number, and, within each family of the plurality of families, to group all products having identical part numbers into respective lots resulting in a plurality of lots for each family, the first family including a first lot for products with the first part number and a second lot for products with the second part number;
- and
- a scheduling module configured to generate a production schedule wherein the plurality of lots are ordered within each family to minimize changeover times.
Dependencies are inferred from the claim text.