Method of producing regular arrays of nano-scale objects using nano-structured block-copolymeric materials
AssigneeCalifornia Institute of Technology
InventorsMichael J. Bronikowski, Brian D. Hunt
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Abstract
A method of forming a periodic array of nano-scale objects using a block copolymer, and nano-scale object arrays formed from the method are provided. The method for forming the arrays generally includes the steps of depositing a block copolymer of at least two blocks on a substrate to form an ordered meso-scale structured array of the polymer materials, forming catalytic metal dots based on the meso-scale structure, and growing nano-scale objects on the catalytic dots to form an ordered array of nano-scale objects.
Claims40
A method of forming an ordered array of nanofeatures comprising the steps of:
- depositing a block copolymer on a substrate, wherein the block copolymer comprises at least two different blocks, and wherein the block copolymer can self-assemble into an ordered polymeric array of a plurality of regular nanometer-scale structures;
- activating the block-copolymer to self-assemble to form the polymeric array;
- etching an ordered orientation guide recess array comprising a plurality of orientation guide recesses into the substrate such that the structure of the orientation guide array is determined by the polymeric array;
- applying a catalytic material, wherein the catalytic material is chosen such that an ordered catalytic material array is formed comprising a plurality of catalytic nucleation regions and having a structure defined by the polymeric array;
- removing the polymeric array from the substrate such that only the catalytic material array remains;
- and
- growing nanofeatures on the catalytic material array to form an ordered nanofeature array having a structure defined by the catalytic material array.
Dependencies are inferred from the claim text.