Patent ID: 8545945
Filing Date: 2013-10-01
Classification: B23K,B29C,B81C

Abstract:
1. A method for preparing microscale polymer relief structures, the method comprising: providing a substrate coated with at least one polymer layer; exposing the substrate and the at least one polymer layer to electromagnetic radiation, the electromagnetic radiation having energy that is absorbed by the substrate; producing heat from the energy absorbed by the substrate; reorganizing the at least one polymer layer with the produced heat to prepare microscale polymer relief structures; providing a periodic aperture separated by a distance from the substrate coated with at least one polymer layer; and passing electromagnetic radiation through the periodic aperture before exposing the substrate coated with at least one polymer layer to the electromagnetic radiation, whereby a near-field diffraction pattern of electromagnetic radiation intensity maxima and minima is created on the substrate coated with at least one polymer layer.