Patent ID: 7838208
Filing Date: 2010-11-23
Classification: B81C,B82Y,G03F

Abstract:
1. A method for fabricating a multi-component pattern comprising: (a) defining a first set of regions of localized magnetic field maxima and minima on a substrate; (b) applying magnetic nanoparticles to the substrate so that the magnetic nanoparticles aggregate on the first set of regions of localized magnetic field maxima and avoid regions of localized magnetic field minima; (c) exposing the substrate to a substrate modifying process to modify sites of the substrate without aggregated magnetic nanoparticles (d) defining a second set of regions of localized magnetic field maxima and minima on the substrate; (e) applying magnetic nanoparticles to the substrate so that the magnetic nanoparticles aggregate on the second set of regions of localized magnetic field maxima and avoid regions of localized magnetic field minima; (f) exposing the substrate to a second substrate modifying process to modify sites of the substrate without aggregated magnetic nanoparticles; and (g) repeating steps (a) through (f) with additional substrate modifying processes.