Methods for manufacturing an embosser drum for use in pre-formatting optical tape media

摘要

Various embodiments herein include utilities for generating embosser drums that are used to pre-format optical media such as optical tape with a pattern of nanostructures such as wobbled grooves. One utility includes generating a plurality of replicas from an embossing master and bonding the replicas together to form a bonded replica structure having a surface with the nanostructure pattern imprinted therein and a surface area that is approximately the same as an outer embossing surface of the embosser drum to be formed. Advantageously, a single, one-piece metallic shim can subsequently be generated, appropriately shaped and welded at a single seam to form the embosser drum outer embossing surface.

主权项

1. A method for use in fabricating an embosser drum, comprising: making a plurality of replicas of an embossing master, wherein each of the replicas includes a pattern of nanostructure, wherein a width of the embossing master is approximately half an axial width of the embosser drum to be formed, and wherein a length of the embossing master is approximately half of a circumference of the embosser drum to be formed; bonding the plurality of replicas of the embossing master together in a particular orientation to create a bonded replica structure including a surface having a pattern of nanostructures thereon, wherein the pattern of nanostructures on the surface of the bonded replica structure comprises the combination of the patterns of nanostructures of the plurality of replicas of the embossing master; producing a replica of the bonded replica structure; and generating an embossing plate from the replica of the bonded replica structure.