High resolution imaging microellipsometry of soft surfaces at 3 μm lateral and 5 Å normal resolution

Autor: G. Mathe, P. Paduschek, Erich Sackmann, K. R. Neumaier, A. Albersdörfer, G. Elender
Rok vydání: 1998
Předmět:
Zdroj: Applied Physics Letters. 72:2930-2932
ISSN: 1077-3118
0003-6951
DOI: 10.1063/1.121497
Popis: We report on the design of an imaging microellipsometer enabling the generation of maps of the two ellipsometric angles Δ and Ψ. Areas of 60×200 μm2 are imaged at a rate of 1–2 images per minute. By working at angles (45°) much smaller than the Brewster angle (≈73° for Si/SiO2/air) a lateral resolution of 3 μm and a height resolution of 5 A is achieved. The performance is demonstrated by thickness measurement of a laterally structured polymer film and a transient thickness measurement of dewetting fluid film of n-hexadecane on a Si/SiO2 wafer.
Databáze: OpenAIRE