Ultrasonic pulse-echo methods have been used extensively in measuring the thickness of
layered structures as well as those of thin adhesive interface layers. When acoustically …

Various signal processing techniques have been used for the enhancement of defect
detection and defect characterisation. Cross-correlation, filtering, autoregressive analysis …

In a highly competitive market, reliable techniques for manufacturing quality control of
electronic devices are demanded. Characterisation of modern microelectronic package …

Lubricant film thickness is one of the most important parameters to indicate the operating
condition of machine elements, such as mechanical seals and hydrostatic slideway. When …

Purpose–The purpose of this paper is to evaluate the application of an acoustic micro‐
imaging (AMI) inspection technique in monitoring solder joints through lifetime performance …

As an efficient non-destructive checking technique, scanning acoustic microscopy has been
rapidly developed and widely used in nondestructive detection for composites, chip …

Recently, adaptive sparse representations of ultrasonic signals have been utilized to
improve the performance of scanning acoustic microscopy (SAM), a common nondestructive …

Scanning acoustic microscopy is an imaging method in which the focused high frequency
ultrasound is used to visualize the micro structures. The morphology and acoustic properties …

This study reports the use of a kernel-based process model, consisting of kernel partial least
squares regression and kernel ridge regression, to model etch rate and uniformity in a …

Acoustic time-frequency domain imaging | The Journal of the Acoustical Society of America |
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