A METHOD FOR MANUFACTURING A TOOL PART FOR AN INJECTION MOLDING PROCESS, A HOT EMBOSSING PROCESS, A NANO-IMPRINT PROCESS, OR AN EXTRUSION PROCESS

The present invention relates to a method for manufacturing a tool part for an injection molding process, a hot embossing process, nano-imprint process or an extrusion process. First, there is provided a master structure (10) with a surface area comprising nanometre-sized protrusions (11) with a min...

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Bibliographische Detailangaben
Hauptverfasser:	SØGAARD, EMIL, TABORYSKI, RAFAEL, SMISTRUP, KRISTIAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MATERIALS THEREFOR MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present invention relates to a method for manufacturing a tool part for an injection molding process, a hot embossing process, nano-imprint process or an extrusion process. First, there is provided a master structure (10) with a surface area comprising nanometre-sized protrusions (11) with a minimum density of approximately 105 protrusions/mm2, the protrusions being positioned in a non-periodic, irregular pattern, said protrusions being created by a process comprising alternating passivation and etching into the master structure. Secondly, there is made a transfer of the master structure into a metal insert (20), the metal insert having a corresponding nanometre-sized pattern (21) from said protrusions, and thirdly, adapting the metal insert into a tool part (30) for enabling nanometre-sized patterns being formed by the tool part. The invention provides an easier and faster way of manufacturing the master structure, e.g. a black silicon wafer. It is a further advantage of the present invention that it provides an advant ageous way of making tools capable of producing self-cleaning surfaces without the need for chemical coating.