Layer thickness determination and layer thickness measurement

Different methods of coating thickness determination and coating thickness measurement

Depending on the type and thickness of a coating, there are various non-destructive and destructive layer thickness testing methods

1. Profilometric, by measurement of a layer slice

2. By creating a cross-section and using microscope imaging (SEM)

3. By creating and measuring a crater section

4. With the aid of X-ray fluorescence analysis (XRF)

5. Eddy current or magnetic induction

6. X-ray reflectometry (for layer thicknesses of 1 - 200 nm on smooth substrates)

7. EPMA: By determining the mass occupancy of the layers

8. Ellipsometry and photometry for transparent coatings

The right procedure for every problem

We provide you with advice as to which coating thickness measurement method is best suited for your particular problem. Each method has its strengths and weaknesses, is suitable for different coating materials or thicknesses, is differently complex and provides different accuracy.