Patent ID: 11875207
Assignee: CERAMIC DATA SOLUTIONS GMBH
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method for storage of information comprising the steps of:
providing a substrate of a first material;
coating the substrate with a layer of a second material different from the first material, wherein the coated substrate comprises a plurality of first predetermined positions in a first two-dimensional regular pattern and a plurality of second predetermined positions in a second two-dimensional regular pattern; and
creating a plurality of recesses in the layer of the second material by using a laser and/or a focused particle beam in order to encode information in the layer of the second material;
wherein the plurality of recesses occupy a first subset of the first predetermined positions and/or a second subset of the second predetermined positions,
wherein the first predetermined positions have a center-to-center distance between directly adjacent positions corresponding to at least 75% and to at most 150% of a maximum cross-sectional dimension of the recesses,
wherein the second predetermined positions have a center-to-center distance between directly adjacent positions corresponding to at least 75% and to at most 150% of the maximum cross-sectional dimension of the recesses, and
wherein a center-to-center distance between any pair of one of the first predetermined positions and a directly adjacent second predetermined position is smaller than 75% of the maximum cross-sectional dimension of the recesses.