What can 3D X-Ray detection equipment detect

The 3D X-ray detection device is an X-ray detection device that utilizes the strong penetrability of X-RAY short wavelength to detect the internal structure of the object being tested. Before understanding 3D X-ray, it is necessary to have a clear understanding of the imaging characteristics of the X-ray detection device:

Why can X-rays penetrate the object to be detected?

It's simple, objects are all composed of atomic sequences. The larger the atomic composition and the smaller the spacing, the higher the density. However, the length of X-RAY waves can penetrate the gap, which is larger than that of X-ray waves. For materials with lower densities, penetration becomes more difficult.

2. Thickness

The product has a low density and tightly arranged atoms. If it is very thin, X-ray can still penetrate, which also involves the thickness of the product. In fact, the relationship with density is similar.

A comprehensive understanding is that materials with larger atomic numbers have larger compositions and smaller gaps, making it more difficult for X-RAY to penetrate and forming black focal points during imaging.

If there are holes or bubbles in IC packaging, due to the different densities of black glue and holes, it is easy to detect the position of the holes when using X-RAY detection. The gold and copper wires in IC packaging can also be clearly distinguished from the silicon film, but COB aluminum wire is difficult to distinguish from the silicon chip, mainly because their atomic numbers are too similar.