Micro/nano structure origination method

A method of manufacturing an embossing master element is disclosed including the steps of providing a template carrying a plurality of precursor relief structures, reversibly modifying the precursor relief structures in selected areas corresponding to a desired pattern to form a negative of the embo...

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Bibliographische Detailangaben
Hauptverfasser:	KARLO JOLIC, ROBERT LEE, PHEI LOK
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BOOK COVERS BOOKBINDING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FILES LINING MACHINES LOOSE LEAVES MICROSTRUCTURAL TECHNOLOGY MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR PRINTING PRINTING MACHINES OR PRESSES PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTUREOR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPECIAL PRINTED MATTER STAMPS TRANSPORTING TYPEWRITERS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method of manufacturing an embossing master element is disclosed including the steps of providing a template carrying a plurality of precursor relief structures, reversibly modifying the precursor relief structures in selected areas corresponding to a desired pattern to form a negative of the embossing master element and replicating the negative as a positive to form the embossing master element. The invention therefore provides a method for the origination of a range of individual surface relief microstructures or nanostructures from a single precursor generic microstructure or nanostructure via a process of selectively and locally modifying the surface relief of the precursor generic microstructure or nanostructure. Because the modification is reversible, the template carrying the relief structures may be reused, greatly reducing the cost of providing a variety of different security features.