Colored photos rarely appear on our website. After all, the electron microscope differs from the optical one . This time, however, we will probably surprise you. One of our intern wanted to check the quality of the copper layer that the molybdenum wire was covered with (check out our last post). For this purpose she made a cross-section of the wire using our XePFIB microscope and analyzed the elemental composition using the EDS (Energy-Dispersive X-ray Spectroscopy) method. Thanks to this she could confirm that the copper plating was successful and the surface was covered with a continuous layer of metal.
EDS elemental analysis is a great tool to verify the production processes of, for example, thin layers, or to determine the distribution of elements in the sample volume. More information about the test is available here. Check it out !