2results about "Recording involving layer ablation" patented technology

The present invention relates to a data carrier comprising a plastics substrate having first and second opposite surfaces and a thickness of at most 500 µm, wherein the first surface of the substrate is coated with a first coating, the material of the first coating being different from the material of the substrate, wherein the first coating comprises a plurality of laser-ablated recesses encoding information, and wherein the first coating comprises one or a combination of the following materials: a metal nitride, a metal carbide, a metal boride, a metal silicide.

The present invention relates to a compact writing and reading head for hyper-speed data recording on ceramic material.