Identification of Counterfeit Integrated Circuits Using a Low-Cost Near-Field Microprobe Scanning Setup

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The threat posed by counterfeit electronics has grown since the 2020 supply chain shutdown, increasing the necessity for a fast, non‑destructive method that flags suspect parts with high confidence. This paper describes a custom, low‑cost, two‑dimensional near‑field‑scanning system that uses self‑built electromagnetic probes and streamlined signal‑processing software to identify relabelled or cloned integrated circuits by their unique emission footprints. Case‑study measurements on known relabelled and cloned samples of type STM32 and FTDI with verification by X-ray imaging demonstrate the setup’s effectiveness and simplicity for routine counterfeit screening.