Information storage medium and method for producing a storage medium of this type
AssigneeCommissariat a l'Energie Atomique
InventorStefan Landis
Life of this patent
Estimating the term…
Abstract
An information storage medium and method of manufacturing such a medium, particularly applicable to computer hard disks. An information storage medium includes an approximately plane front face and a back face, the medium being read and/or written by a device placed facing the front face. The back face includes recessed areas and all or part of sidewalls and/or the bottom of the recessed areas is covered with a magnetic deposit, the distance separating the front face from the deposit being such that the device can read and/or write information in the deposit.
Claims9
A method for manufacturing an information storage medium, comprising:
- providing a medium having an approximately plane front face and an approximately plane opposite back face, wherein the medium is configured to be read and/or written by a read and/or write device placed facing the front face;
- predetermining a distance separating the front face from a magnetic deposit being such that the read and/or write device can read and write the information in the magnetic deposit;
- providing recessed areas in the back face having the predetermined distance between the front face and the bottom of the recessed areas;
- and
- providing the magnetic deposit used for information storage within the recessed areas, thereby forming a discrete information storage array on the back face wherein each recessed area is configured to contain at least one magnetic domain representing an elementary bit defined by a magnetization direction.
Dependencies are inferred from the claim text.