Patent Number: 
Section: claims

1. A test system, comprising:a storage system configured to store first test data for a first individual component and second test data for a second individual component, wherein the first and second components occupy corresponding locations on different wafers; anda composite analysis element configured to analyze the first test data and the second test data for common characteristics. 2. A test system according to claim 1, wherein the composite analysis element is configured to compare a summary value for the first and second test data to a threshold. 3. A test system according to claim 2, wherein the threshold is a dynamic threshold based on the test data. 4. A test system according to claim 2, wherein the summary value is determined according to a number of test data for corresponding components to satisfy a criterion. 5. A test system according to claim 1, wherein the composite analysis element is configured to compare the first test data and the second test data to a threshold. 6. A test system according to claim 5, wherein the threshold is calculated based on the first test data and the second test data. 7. A test system according to claim 1, wherein the common characteristics comprise data values meeting at least one threshold. 8. A test system according to claim 1, wherein the composite analysis element is configured to generate composite data according to the test data having the common characteristics. 9. A test system according to claim 8, wherein the composite analysis element is configured to accord a designated treatment to composite data within a designated zone. 10. A test system according to claim 9, wherein the composite analysis element is configured to at least one of ignore and accord a lower significance to the composite data within the designated zone. 11. A test system according to claim 8, wherein the composite analysis element is configured to perform a spatial analysis on the composite data. 12. A test system according to claim 8, wherein the composite analysis element is configured to accord a significance to a selected composite data point based on values of nearby composite data points. 13. A test system according to claim 12, wherein the significance accorded to the selected composite data point is adjusted by a first amount if a first nearby composite data point is at a first position relative to the selected composite data point and by a second amount if the first nearby composite data point is at a second position relative to the selected composite data point. 14. A test system according to claim 8, wherein the composite analysis element is configured to remove a cluster of composite data points from the composite data. 15. A test system according to claim 14, wherein the composite analysis element is configured to remove the cluster of composite data points only when the cluster is smaller than a selected size. 16. A test system according to claim 8, wherein the composite analysis element is configured to merge the composite data with another set of data. 17. A test system according to claim 16, further comprising an output element configured to generate a composite map including the merged composite data. 18. A test system, comprising:a storage system configured to store test data for at least two sets of components, including test data for individual components, wherein:components from each set of components correspond to components in other sets of components; andthe corresponding components occupy corresponding locations on different wafers; anda composite analysis element configured to analyze the test data for at least two individual corresponding components for common characteristics. 19. A test system according to claim 18, wherein the composite analysis element is configured to compare a summary value for at least one test datum for one or more corresponding components to a threshold. 20. A test system according to claim 19, wherein the threshold is a dynamic threshold based on the test data. 21. A test system according to claim 19, wherein the summary value is determined according to a number of test data for corresponding components to satisfy a criterion. 22. A test system according to claim 18, wherein the composite analysis element is configured to compare the test data from different datasets to a threshold. 23. A test system according to claim 22, wherein the threshold is calculated based on the test data. 24. A test system according to claim 18, wherein the common characteristics comprise data values meeting at least one threshold. 25. A test system according to claim 18, wherein the composite analysis element is configured to generate composite data according to the test data having the common characteristics. 26. A test system according to claim 25, wherein the composite analysis element is configured to accord a designated treatment to composite data within a designated zone. 27. A test system according to claim 26, wherein the composite analysis element is configured to at least one of ignore and accord a lower significance to the composite data within the designated zone. 28. A test system according to claim 25, wherein the composite analysis element is configured to perform a spatial analysis on the composite data. 29. A test system according to claim 25, wherein the composite analysis element is configured to accord a significance to a selected composite data point based on values of nearby composite data points. 30. A test system according to claim 29, wherein the significance accorded to the selected composite data point is adjusted by a first amount if a first nearby composite data point is at a first position relative to the selected composite data point and by a second amount if the first nearby composite data point is at a second position relative to the selected composite data point. 31. A test system according to claim 25, wherein the composite analysis element is configured to remove a cluster of composite data points from the composite data. 32. A test system according to claim 31, wherein the composite analysis element is configured to remove the cluster of composite data points only when the cluster is smaller than a selected size. 33. A test system according to claim 25, wherein the composite analysis element is configured to merge the composite data with another set of data. 34. A test system according to claim 33, further comprising an output element configured to generate a composite map including the merged composite data. 35. A method for testing semiconductors, comprising:obtaining at least two datasets of test data for at least two sets of components, wherein:a first component in a first set corresponds to a second component in a second set; andthe first and second components occupy corresponding locations on different wafers; andanalyzing the test data for the individual corresponding first and second components for common characteristics. 36. A method for testing according to claim 35, wherein analyzing the test data comprises comparing a summary value based on test data for multiple components to a threshold. 37. A method for testing according to claim 36, wherein the threshold is a dynamic threshold based on the test data. 38. A method for testing according to claim 36, wherein the summary value is determined according to a number of test data for corresponding components to satisfy a criterion. 39. A method for testing according to claim 35, wherein the composite analysis element is configured to compare the test data from different datasets to a threshold. 40. A method for testing according to claim 39, wherein the threshold is calculated based on the test data. 41. A method for testing according to claim 35, wherein the common characteristics comprise data values meeting at least one threshold. 42. A method for testing according to claim 35, further comprising generating composite data according to the test data having the common characteristics. 43. A method for testing according to claim 42, wherein generating composite data includes according a designated treatment to composite data within a designated zone. 44. A method for testing according to claim 43, wherein according the designated treatment includes at least one of ignoring and according a lower significance to the composite data within the designated zone. 45. A method for testing according to claim 42, further comprising performing a spatial analysis on the composite data. 46. A method for testing according to claim 42, further comprising according a significance to a selected composite data point based on values of nearby composite data points. 47. A method for testing according to claim 46, wherein the significance accorded to the selected composite data point is adjusted by a first amount if a first nearby composite data point is at a first position relative to the selected composite data point and by a second amount if the first nearby composite data point is at a second position relative to the selected composite data point. 48. A method for testing according to claim 42, further comprising removing a cluster of composite data points from the composite data. 49. A method for testing according to claim 48, wherein removing the cluster includes removing the cluster of composite data points only when the cluster is smaller than a selected size. 50. A method for testing according to claim 42, further comprising merging the composite data with another set of data. 51. A method for testing according to claim 50, further comprising generating a composite map including the merged composite data.