Patent ID: 7875821
Filing Date: 2011-01-25
Classification: B07C,G01R,H01L

Abstract:
1. A method for sorting integrated circuit devices from an integrated circuit device manufacturing process for culling shippable integrated circuit devices from a reject bin containing integrated circuit devices, the method comprising: programming each of the integrated circuit devices with a respective identification code using one of fuses, or anti-fuses, or both fuses and anti-fuses contained in each integrated circuit device; testing the integrated circuit devices using a first standard, wherein test data generated during the testing is associated with the identification codes of the integrated circuit devices; separating those integrated circuit devices that do not pass the first standard; automatically reading the identification code of at least one of the integrated circuit devices that did not pass the first standard; accessing the test data associated with the automatically read identification code of the at least one integrated circuit device; and comparing the accessed test data with a second standard, wherein the second standard is relaxed in comparison to the first standard, to determine if the at least one integrated circuit device corresponding to the automatically read identification code passes the second standard without retesting that integrated circuit device.