Location

Ithaca, NY

Start Date

1978 12:00 AM

Description

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.

Book Title

Proceedings of the ARPA/AFML Review of Progress in Quantitative NDE

Chapter

5. New Techniques and Phenomena

Pages

141-145

Language

en

File Format

application/pdf

Share

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Jan 1st, 12:00 AM

Acoustic Imaging of Joined Surfaces

Ithaca, NY

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.