Acoustic Microscopy for Nondestructive Evaluation of Materials

Abstract

Research in the Field of acoustic microscopy is described for the first half of 1979. The properties and design of the acoustic transducer lens combination is detailed. The source of contact in the acoustic images for both material surfaces and integrated circuits is discussed with the view of determining how small changes in surface elastic properties alter the reflectivity for a spherically converging beam. The use of liquid gallium in the lens is described. Some of the work on the photoacoustic microscope is included.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA078088

Entities

People

  • Calvin Quate

Organizations

  • Stanford University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Absorption
  • Acoustic Impedance
  • Acoustic Microscopes
  • Acoustic Waves
  • Acoustics
  • Beam Steering
  • Diffraction
  • Elastic Properties
  • Electromagnetic Fields
  • Field Effect Transistors
  • Geometry
  • Mechanical Impedance
  • Mechanical Properties
  • Piezoelectric Transducers
  • Silica Glass
  • Thin Films
  • Transducers

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Nanofabrication and Microfabrication.
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Microelectronics - Microelectromechanical Systems