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Techniques for Localization of IC Interconnection Defects

Published online by Cambridge University Press:  01 February 2011

Edward I. Cole Jr
Edward I. Cole Jr*
Affiliation:
Failure Analysis Department Sandia National Laboratories Albuquerque, NM 87185
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Abstract

The advances in integrated circuit technology has made failure site localization extremely challenging. Charge-Induced Voltage Alteration (CIVA), Low Energy CIVA (LECIVA), Light-Induced Voltage Alteration (LIVA), Seebeck Effect Imaging (SEI) and Thermally-Induced Voltage Alteration (TIVA) are five recently developed failure analysis techniques which meet the challenge by rapidly and non-destructively localizing interconnection defects on ICs. The techniques take advantage of voltage fluctuations in a constant current power supply as an electron or photon beam is scanned across an IC. CIVA and LECIVA are scanning electron microscopy (SEM) techniques that yield rapid localization of open interconnections. LIVA is a scanning optical microscopy (SOM) method that yields quick identification of damaged semiconductor junctions and determines transistor logic states. SEI and TIVA are SOM techniques that rapidly localize open interconnections and shorts respectively. LIVA, SEI, and TIVA can be performed from the backside of ICs by using the proper photon wavelength. CIVA, LECIVA, LIVA, TIVA, and SEI techniques in terms of the physics of signal generation, data acquisition system required, and imaging results displaying the utility of each technique for localizing interconnection defects. In addition to the techniques listed above, the Resistive Contrast Imaging (RCI) for localizing opens on metal test patterns will be described as a starting point for the “IVA” technologies.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 716: Symposium B – Silicon Materials-Processing, Characterization, and Reliability , 2002 , B13.1
Copyright
Copyright © Materials Research Society 2002

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