Open Access Paper
22 July 2003 Acoustic microscopy: a powerful tool to inspect microstructures of electronic devices
Silvia U. Fassbender, Klaus Kraemer
Author Affiliations +
Abstract
To increase the efficiency of electronic devices their structures are getting smaller and the layered constructions are getting more complex. The inspection of these small and thin structures gives new demands on the NDT, especially in lateral and depth resolution. High-end X-ray tomography is one inspection method, which allows to detect cracks or delaminations. However, it is time consuming. Ultrasonic techniques are able to detect cracks, delaminations, and other inhomogeneities, too. Acoustic microscopy is the high-end application of ultrasonic techniques. Using frequencies between 1 MHz and 1000 MHz (1 GHz) it is possible to detect defects even in the submicron-range. In combination with scanning units with a resolution of 0.1 µm, modified transducers and special software microstructures of layered electronic devices can be inspected very fast. This method will be presented at several examples of semiconductor devices. It will be shown, that inline-inspection with acoustic microscopy is possible.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Silvia U. Fassbender and Klaus Kraemer "Acoustic microscopy: a powerful tool to inspect microstructures of electronic devices", Proc. SPIE 5045, Testing, Reliability, and Application of Micro- and Nano-Material Systems, (22 July 2003); https://doi.org/10.1117/12.483797
Lens.org Logo
CITATIONS
Cited by 5 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Acoustics

Inspection

Transducers

Ultrasonics

Microscopy

Microscopes

Scanners

Back to Top