Scheme for evaluating costs and/or benefits of manufacturing technologies

• US 7,231,374 B1
• Filed: 05/16/2000
• Issued: 06/12/2007
• Est. Priority Date: 05/16/2000
• Status: Expired due to Fees

• Current Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Original Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Inventors: Balasinski, Artur P.
• Primary Examiner(s): Dixon, Thomas A.
• Application Number:
  US09/571,826
• Time in Patent Office: 2,583 Days
• Field of Search: 705/1, 705/7, 705/8, 705/400, 700/36, 700/95, 700/96, 700/97
• US Class Current: 705/400
• CPC Class Codes: G06Q 10/04 Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem" market predictions or forecasting for commercial activities G06Q30/0202
• CPC Class Codes: G06Q 30/0283 Price estimation or determination

Abstract

An embodiment of a method of evaluating costs and/or benefits of possible configurations of a manufactured product (e.g., an integrated circuit, an electronic system, etc.) includes establishing an upgrade cost and a redesign cost for each characteristic within a set of characteristics associated with the product configuration. The upgrade cost is the cost to upgrade the characteristic in a manner commensurate with other upgraded characteristics, while the redesign cost is the cost to redesign the product to accommodate the characteristic if it is not upgraded commensurately. A predicted total cost and a predicted benefit for a configuration may also be computed. In addition, the total cost for the corresponding configuration may be subtracted from such a benefit to determine a net benefit for the configuration. The method may be implemented using a computer-based system including upgrade cost data and redesign cost data.

Claims

1. A method of evaluating possible configurations of a manufactured product, wherein each configuration is associated with a set of characteristics of the product, said method comprising:

establishing for each of the characteristics in the set;

an upgrade cost applicable on condition that the characteristic is upgraded in a manner commensurate with other characteristics in the set; and

a redesign cost applicable on condition that the characteristic is not upgraded in a manner commensurate with other characteristics in the set; and

selecting, based on the upgrade costs and the redesign costs, one of the possible configurations by which to alter the manufactured product.

2. The method as recited in claim 1, wherein:

said evaluating possible configurations of the product comprises evaluating possible layouts of an integrated circuit;

each characteristic comprises a design rule used in establishing a layout;

said upgrading in a manner commensurate comprises scaling in size by a common scaling factor; and

the redesign cost comprises a cost to redesign the layout to accommodate non-commensurate scaling of the corresponding design rule.

3. The method as recited in claim 2, wherein said establishing the upgrade cost for each design rule comprises:

including an equipment cost associated with new equipment needed to scale the corresponding design rule;

including a time cost associated with time needed to implement scaling of the corresponding design rule; and

including an operational cost associated with increased manufacturing operational costs of scaling the corresponding design rule.

4. The method as recited in claim 2, wherein said establishing the redesign cost for each design rule comprises:

including a labor cost for redesign of the layout to accommodate non-commensurate scaling of the design rule;

including a time cost associated with time needed to implement the redesign of the layout; and

including a die size cost associated with a reduction in circuits per wafer caused by the non-commensurate scaling of the design rule.

5. The method as recited in claim 1, wherein

said evaluating possible configurations of the product comprises evaluating configurations of an electronic system;

each characteristic comprises a circuit within the electronic system;

said upgrading in a manner commensurate comprises scaling in operating speed by a common factor; and

the redesign cost comprises a cost to redesign operating software for the system to accommodate non-commensurate scaling of the corresponding circuit.

6. The method as recited in claim 5, wherein said evaluating configurations of the electronic system comprises evaluating configurations of a computer system.

7. The method as recited in claim 5, wherein said evaluating configurations of the electronic system comprises evaluating configurations of an electronic system implemented in an integrated circuit.

8. The method as recited in claim 1, wherein said establishing the upgrade cost for each characteristic in a given configuration comprises establishing an upgrade cost dependent upon which of the other characteristics are upgraded in the given configuration.

9. The method as recited in claim 1, wherein said establishing for each of the characteristics an upgrade cost comprises establishing a cost to achieve a predetermined likelihood of successful upgrade of the characteristic, wherein the predetermined likelihood is the same for each characteristic.

10. The method as recited in claim 1, further comprising computing for each evaluated configuration a predicted total cost of the configuration, wherein the total cost includes a sum over all of the characteristics of either the upgrade cost or the redesign cost for the characteristic, depending upon whether the configuration includes upgrading of the characteristic.

11. The method as recited in claim 10, wherein:

said establishing for each of the characteristics an upgrade cost and a redesign cost further comprises establishing for at least one of the characteristics a partial upgrade cost and a partial redesign cost, wherein the partial upgrade cost and partial redesign cost are applicable on condition that the characteristic is upgraded in a manner incommensurate with others of the characteristics; and

said computing for each of the configurations a predicted total cost further comprises computing a total cost including a sum over all of the characteristics of either the upgrade cost, the redesign cost, or a sum of the partial upgrade cost and partial redesign cost, depending upon whether the configuration includes upgrading, not upgrading, or partially upgrading the characteristic.

12. The method as recited in claim 10, further comprising establishing a yield factor for each characteristic which is upgraded in a given configuration, wherein the yield factor is proportional to a predicted percentage of products including the upgraded characteristic which are manufactured successfully, and wherein said computing for each of the possible configurations a total cost further comprises multiplying the sum by a factor inversely proportional to the smallest of the yield factors established for the characteristics within the configuration.

13. The method as recited in claim 10, further comprising computing for each evaluated configuration a predicted benefit of the configuration, wherein the benefit includes a predicted increase in income associated with manufacture of the configuration.

14. The method as recited in claim 13, wherein said computing for each evaluated configuration the predicted benefit comprises including an increase in income as compared to income from a previously-manufactured configuration.

15. The method as recited in claim 13, further comprising subtracting the total cost from the benefit for each configuration to determine a net benefit for each configuration.

16. The method as recited in claim 10, further comprising comparing the total costs of the evaluated configurations to determine a lowest-cost configuration.

17. The method as recited in claim 15, further comprising comparing the net benefits of the evaluated configurations to determine a highest-net-benefit configuration.

18. A computer-based system for evaluating possible configurations of a manufactured product, wherein each configuration is associated with a set of characteristics of the product, said system comprising:

a processor; and

a storage medium operably coupled to the processor, wherein the storage medium includes;

upgrade cost data and redesign cost data for each of the characteristics within the set; and

program instructions executable by the processor for;

computing a total cost for each of the possible configurations using the upgrade cost data and redesign cost data;

comparing the total costs of a plurality of the possible configurations; and

determining, from the step of comparing, a lowest-cost configuration of the plurality of possible configurations by which to alter the manufactured product.

19. The system as recited in claim 18, further comprising an input device adapted for selection of a configuration to be evaluated.

20. The system as recited in claim 18, wherein the storage medium further includes configuration data indicating which characteristics are upgraded in each configuration.

21. The system as recited in claim 18, wherein the storage medium further includes benefit data characterizing an increase in income associated with manufacture of the product.

22. The medium as recited in claim 18, wherein the program instructions are further for

subtracting the computed total costs from benefit incomes established for each of the possible configurations to determine net benefit incomes for each of the possible configurations;

and

comparing the net benefit incomes of each of the possible configurations to determine a highest-net-benefit-income configuration of the possible configurations by which to alter the manufactured product.

23. A computer-usable medium, comprising:

first instructions executable on a computational device for establishing an upgrade cost for each of a set of characteristics of a product, wherein the upgrade cost is applicable on condition that the characteristic is upgraded in a manner commensurate with other characteristics associated with a possible configuration of the product;

second instructions executable on the computational device for establishing a redesign cost for each of the set of characteristics, wherein the redesign cost is applicable on condition that the characteristic is not upgraded in a manner commensurate with other characteristics associated with a possible configuration of the product;

third instructions executable on the computational device for computing a total cost for the product using the upgrade costs and redesign costs; and

fourth instructions executable on the computational device for determining a net benefit income for the product by subtracting the computed total cost from a benefit income established for the product.

24. The medium as recited in claim 23, wherein the product comprises an integrated circuit, a configuration comprises a layout of the integrated circuit, a characteristic comprises a design rule used in establishing the layout, said upgrading in a manner commensurate comprises scaling in size by a common scaling factor, and the redesign cost comprises a cost to redesign the layout to accommodate non-commensurate scaling of the corresponding design rule.

25. The medium as recited in claim 23, wherein the product comprises an electronic system, a characteristic comprises a circuit within the electronic system, said upgrading in a manner commensurate comprises scaling in operating speed by a common factor, and the redesign cost comprises a cost to redesign operating software for the system to accommodate non-commensurate scaling of the corresponding circuit.

26. The medium as recited in claim 23, further comprising upgrade cost data including the upgrade costs for each of the set of characteristics, and redesign cost data including the redesign costs for each of the set of characteristics.

27. The medium as recited in claim 26, wherein the upgrade cost for a characteristic depends upon which other characteristics are upgraded in a given configuration.

28. The medium as recited in claim 23, wherein the first and second instructions are further executable on a computational device for establishing an upgrade cost or a redesign for each of a set of characteristics of a plurality of different configurations for the product, wherein the third instructions are further executable on a computational device for computing a total cost for each of the different configurations for the product, and wherein the medium further comprises fifth instructions executable on the computational device for comparing the total costs of the plurality of different configurations for the product to determine a lowest-cost configuration of the plurality of different configurations.

29. The medium as recited in claim 23, further comprising sixth instructions executable on the computational device for comparing net benefit incomes of a plurality of different configurations for the product to determine a highest-net-benefit-income configuration of the plurality of different configurations.