Thickness oscillations in a PS-b-PMMA thin film on Si

Thickness oscillations in a PS-b-PMMA thin film on Si, caused by a dirt particle falling into the diblock copolymer solution during spin coating. The surface morphology of the diblock copolymer film is influenced by the film thickness
Device: NTEGRA Aura
Tip: HA_NC
Sample Courtesy: Dr. Stanislav Leesment
Image Courtesy: Dr. Denise Erb, Deutsches Elektronensynchrotron