Abstract

Traditional time domain reflectometry (TDR) techniques employ time-based information to locate faults within packages with minimal references to internal structures. Here, we combine a novel and innovative technique, electro optical terahertz pulse reflectometry (EOTPR) [1], with full 3D device-under-test (DUT) modelling to quickly and nondestructively perform feature-based analysis. We demonstrate fault isolation to an accuracy of 10 ìm or better with respect to device features in an advanced integrated circuit (IC) package.

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