Document Type

5. New Techniques and Phenomena

Publication Date

5-1978

Abstract

In this paper, the results of imaging experiments with the interfacial region~ of representative solid material joints, using a transmission-type scanning acoustic microscope operating at 150 MHz, are reported. Voids and flaws in specially made joints as well as production-line silicon solder bonds (die bonded headers) have been detected using the transmission-mode of operation of the microscope. Acoustic velocity of epoxy in an organic adhesive bond has also been measured using a combination of transmission and interference-mode of operation.

Language

en

File Format

application/pdf

File Size

5 p.

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