Space-domain reflectometry (SDR) utilizing scanning superconducting quantum interference device (SQUID) microscopy is a newly developed non-destructive failure analysis (FA) technique for open fault isolation. Unlike the conventional open fault isolation method, time-domain reflectometry (TDR), scanning SQUID SDR provides a truly two-dimensional physical image of device under test with spatial resolution down to 30 μm [1]. In this paper, the SQUID SDR technique is used to isolate dead open faults in flip-chip devices. The experimental results demonstrate the capability of SDR in open fault detection

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