Ion-induced sustained high current condition in a bipolar device

Observation of an ion-induced sustained high current condition ("high current anomaly") in a bipolar device, that is similar but not identical to latchup, is reported. Both high current anomaly and single event upset test results are presented for the AD9048 test device. Photon emission microscopy was used to locate the site of the high current anomaly. A model of the triggering mechanism based on the results so obtained is described. >

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