Scanning Acoustic Microscopy (C-SAM)

Equipment: Sonoscan

Working Principle

  • Create images by generating a pulse of ultrasound
  • Probe the area of interest vertically as depth changes
  • Reflect the interface based on the materials

Technical Information

  • Layer by layer analysis of DUT along the depth
  • Acoustic and optical images show all of the underfill voids, die cracks, and material defects

Image Processing of a C-SAM