Patent ID: 8617798
Filing Date: 2013-12-31
Classification: B81C,G03F,Y10T

Abstract:
1. A method of producing particles, comprising: providing a substrate structure comprising a solid substrate; forming a target structure on said substrate structure, said target structure comprising first and second layers of radiation-reactive material with a layer of radiation non-reactive material therebetween; forming a spatially patterned beam of radiation using a patterned mask; exposing at least a portion of each of said first and second layers of radiation reactive material of said target structure to said spatially patterned beam of radiation to which said radiation-reactive material reacts while leaving other portions of said target structure unexposed to said spatially patterned beam of radiation; removing substantially all of one of the exposed or the unexposed patterned portions of each of said first and second layers of radiation reactive material of said target structure to provide a plurality of non-contiguous structures in each of said first and second layers of radiation reactive material that include at least a portion of said radiation-reactive material; separating the plurality of non-contiguous structures comprising said radiation-reactive material from each of said first and second layers of radiation reactive material of said substrate structure into a fluid material within which said non-contiguous structures form a dispersion after said separation; and modifying at least a portion of a surface of each of said particles with a material having a predetermined chemical property, wherein said layer of radiation non-reactive material is sufficiently transparent to said spatially patterned beam of radiation such that an underlying one of said first and second layers of radiation reactive material becomes exposed, wherein said modifying said particles comprises stabilization of said particles against aggregation.