Acoustic Microscopy for Nondestructive Evaluation of Materials

Abstract

The progress in the program for acoustic microscopy is described for the preceding six month interval. The acoustic microscope working at 2.5 GHz has been used to study a variety of materials and a number of integrated circuits. We are beginning to see interesting features in these micrographs - features which are not evident in the optical images. Some of the effort has been spent on improving the instrument so as to extract particular and specified information of a given object. This is being done in part with the aid of a dedicated microprocessor. Originator-supplied key words include: Imaging; Nondestructive evaluation; Silicon; and Image enhancement.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1979
Accession Number
ADA148536

Entities

People

  • Calvin Quate

Organizations

  • Stanford University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Images
  • Acoustic Microscopes
  • Circuits
  • Crystal Structure
  • Focal Planes
  • Frequency
  • Images
  • Integrated Circuits
  • Materials
  • Materials Science
  • Microscopes
  • Microscopy
  • Optical Images
  • Piezoelectric Transducers
  • Reflectors
  • Transducers
  • Transfer Functions

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Software Engineering
  • Structural Health Monitoring of Composite Structures.