Spin Coating Unit
Spin Coating method is widely used coating method to create uniform thin films of materials,often polymers, onto the surface of a substrate by employing the concept of centrifugal force.
Easy to use, safe and inexpensive, this method is extremely desirable for many applications where high quality of layers are required. Despite of the process simplicity, several experimental and theoretical investigations appeared in the literature explaining the dependence of the spin coating process on the electrical, optical and morphological characteristics of the films.In such a way that the control of the fluid flow and the fluid evaporation are essential to meet uniform thin films.Since both contribute to the overall rate of the thinning during spinning of the fluid on the substrate.For example, if there are no evaporation of the solvent, the film thickness at long time varies with spin speed and time.While in the presence of constant or variable solvent evaporation rates,Steady-State film thickness obeys h α Ω - ⅔ or h α Ω - ½.
SCU2007
spinNXG-M1
SCU2008C
spinNXG-P1
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