IDENTIFYING INTEGRATED CIRCUIT ORIGIN USING TOOLING SIGNATURE

摘要

A method for determining if an individual integrated circuit was manufactured using an individual instance of tooling includes collecting from the individual integrated circuit first data representing at least one attribute that varies as a function of the tooling used to manufacture the individual integrated circuit and second data identifying the integrated circuit as having been manufactured using the individual instance of tooling. The first data is compared to a signature of the individual instance of tooling identified by the second data. The signature is derived from the at least one attribute measured from a population of integrated circuits that were manufactured using the individual instance of tooling. The individual integrated circuit is identified as having been manufactured using the individual instance of tooling identified in the second data collected from the individual integrated circuit if the first data correlates to the signature by a predetermined threshold.

主权项

1. A method for determining if an individual integrated circuit was manufactured using pre-determined instances of a tooling, comprising:
collecting from the individual integrated circuit first data representing at least one attribute that varies as a function of the tooling used to manufacture the individual integrated circuit; comparing the first data collected from the individual integrated circuit to a signature derived from the at least one attribute measured from a population of integrated circuits that were manufactured utilizing at least one predetermined instance of the tooling; and identifying the individual integrated circuit as having been manufactured using the at least one pre-determined instance of the tooling if the first data correlates to the signature by a predetermined threshold, else identifying the individual integrated circuit as not having been manufactured using the at least one predetermined instance of the tooling if the first data does not correlate to the signature by the predetermined threshold.