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US 6,564,113 B1Granted
Lot start agent that calculates virtual WIP time in a multi-product and multi-bottleneck manufacturing environment
AssigneeAdvanced Micro Devices, Inc.
InventorsLarry D. Barto, Steven C. Nettles, Yiwei Li
Life of this patent
Estimating the term…
Abstract
A system and method are provided for calculating virtual WIP time (“VWIP”) in a multiple-bottleneck, multi-product manufacturing facility. The system and method provide for calculation of one or more bottleneck VWIP values. Each of the bottleneck VWIP values represents the amount of work approaching one of n bottleneck workstations, where n>0. The work approaching the bottleneck workstation comprises at least one of m products, where m>0.
Claims20
An automated system that calculates virtual work-in-process time (“VWIP”) in a manufacturing facility, comprising:
- a software object that provides for calculation of one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of n bottleneck workstations, where n>0, wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a segment value, the segment value corresponding to a segment, wherein the segment occupies a position;
- and
- wherein the software object further provides for assigning a weight value to the segment value, based on the position.
1 more element
An automated system that calculates virtual work-in-process time (“VWIP”) in a manufacturing facility, comprising:
- a software object that provides for calculation of one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of n bottleneck workstations, where n>0, wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a product VWIP value;
- wherein the product VWIP value further comprises a segment VWIP value;
- and
- wherein the segment VWIP value further comprises an operation VWIP value.
2 more elements
An automated system that calculates virtual work-in-process time (“VWIP”) in a manufacturing facility, comprising:
- a software object that provides for calculation of one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of n bottleneck workstations, where n>0, wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a segment value;
- and
- wherein the software object further provides for determining whether a value associated with a lot on hold should be excluded from the segment value.
1 more element
A method of calculating virtual work-in-process time (“VWIP”) in a manufacturing facility, comprising:
- providing a software object that calculates one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of n bottleneck workstations, where n>0, wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a segment value, the segment value corresponding to a segment, wherein the segment occupies a position;
- and
- wherein providing a software object further comprises providing a software object that assigns a weight value to the segment value, based on the position.
1 more element
A method of calculating virtual work-in-process time (“VWIP”) in a manufacturing facility, comprising:
- providing a software object that calculates one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of n bottleneck workstations, where n>0, wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a product VWIP value;
- wherein the product VWIP value further comprises a segment VWIP value;
- and
- wherein the segment VWIP value further comprises an operation VWIP value.
2 more elements
A method of calculating virtual work-in-process time (“VWIP”) in a manufacturing facility, comprising:
- providing a software object that calculates one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of n bottleneck workstations, where n>0, wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a segment value;
- and
- wherein providing a software object further comprises providing a software object that determines whether a value associated with a lot on hold should be excluded from the segment value.
1 more element
A method of calculating virtual work-in-process time (“VWIP”) in a manufacturing facility, comprising:
- calculating one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of n bottleneck workstations, where n>0, wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a segment value, the segment value corresponding to a segment;
- wherein the segment occupies a position;
- and
- wherein calculating one or more bottleneck VWIP values further comprises assigning a weight value to the segment value, based on the position.
2 more elements
A method of calculating virtual work-in-process time (“VWIP”) in a manufacturing facility, comprising:
- calculating one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of n bottleneck workstations, where n>0, wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a product VWIP value;
- wherein the product VWIP value further comprises a segment VWIP value;
- and
- wherein the segment VWIP value further comprises an operation VWIP value.
2 more elements
A method of calculating virtual work-in-process time (“VWIP”) in a manufacturing facility, comprising:
- calculating one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of n bottleneck workstations, where n>0, wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a segment value;
- and
- wherein calculating one or more bottleneck VWIP values further comprises determining whether a value associated with a lot on hold should be excluded from the segment value.
1 more element
A manufacturing facility, comprising:
- n bottleneck workstations;
- and
- an automated system that calculates virtual work-in-process time (“VWIP”);
- wherein the automated system includes a software object that provides for calculation of one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of the bottleneck workstations, where n>0;
- wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a segment value, the segment value corresponding to a segment, wherein the segment occupies a position;
- and
- wherein the software object further provides for assigning a weight value to the segment value, based on the position.
5 more elements
A manufacturing facility, comprising:
- n bottleneck workstations;
- and
- an automated system that calculates virtual work-in-process time (“VWIP”);
- wherein the automated system includes a software object that provides for calculation of one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of the bottleneck workstations, where n>0;
- wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a product VWIP value;
- the product VWIP value further comprises a segment VWIP value;
- and
- wherein the segment VWIP value further comprises an operation VWIP value.
6 more elements
A manufacturing facility, comprising:
- n bottleneck workstations;
- and
- an automated system that calculates virtual work-in-process time (“VWIP”);
- wherein the automated system includes a software object that provides for calculation of one or more bottleneck VWIP values, each of the one or more bottleneck VWIP values representing the amount of work approaching one of the bottleneck workstations, where n>0;
- wherein the work comprises at least one of m products, where m>0;
- wherein each of the bottleneck VWIP values further comprises a segment value;
- and
- wherein the software object further provides for determining whether a value associated with a lot on hold should be excluded from the segment value.
5 more elements
Dependencies are inferred from the claim text.