Detection of Contaminants on Electronic Microcircuit Substrates by Laser Spark Emission Spectroscopy

Author:

Ottesen David K.1

Affiliation:

1. Sandia National Laboratories, Inorganic and Physical Chemistry Division, Livermore, California 94551-0969

Abstract

Laser spark emission spectroscopy is used to determine the elemental composition of contaminants found on electronic microcircuits fabricated on alumina substrates. This technique is particularly useful for rapid analyses of dielectric surfaces, and spatially resolved data with some degree of depth profiling information are obtained. Two specific examples are given which illustrate the utility of the method in pinpointing production problems.

Publisher

SAGE Publications

Subject

Spectroscopy,Instrumentation

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