Importance

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Abstract

Integrated circuit having security-critical circuit components arranged in a lower plane, data lines arranged in an upper plane, situated at least in part above the security-critical circuit components arranged in the lower plane, and connected to the security-critical circuit components, and a detector circuit that identifies an attack on the integrated circuit. The detector circuit has a transmitting device that transmits predetermined test data into the security-critical circuit components arranged in the lower plane, a receiving device that receives the data processed by the security-critical circuit components arranged in the lower plane, and an evaluation device that compares the received data with expected data and that ascertains any non-correspondence. The data lines carry the predetermined test data that is transmitted by the transmitting device and is processed by the security-critical circuit components.

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First Claim