Optical recording media for writing only once

Abstract

The invention relates to a write-once-only optical record medium, which comprises a baseplate and a film coated on the baseplate. The coated film comprises a record layer and a reflecting layer connected with the record layer. The record layer primarily contains germanium, antimony and silicon or the mixture of any two elements of germanium, antimony and silicon. The reflecting layer primarily contains aluminium, copper, silver and aurum or alloy consisting of two elements of aluminium, copper, silver and aurum. When a writing and recording laser emit to the coated film, local material constituents change and react at the interface area of the record layer and the reflect layer, thus forming a record point as a digital signal source. As the record layer is made of inorganic materials which can grow by adopting the direct current sputtering technology, and the manufacturing process of products is minimized, the production cost is significantly reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to an optical recording medium, in particular to a write-once optical recording medium which can greatly reduce production cost and improve production efficiency. Background technique [0002] see figure 1 As shown, it is a schematic diagram illustrating a general existing optical recording medium. Generally, a write-once optical recording medium 1 includes a substrate 11, and a dielectric layer 12 and a recording medium formed on the substrate 11 in sequence. layer 13, and a reflective layer 14, when a writing laser (laser is laser light, hereinafter referred to as laser light) enters the optical recording medium 1 from the bottom surface of the substrate 11, it will be deflected by the dielectric layer 12 and It is vertically injected into the recording layer 13 and generates a local reaction in the recording layer 13 to form a recording point as a source of a digital signal to record and save data (data is data, hereinafter re...

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Problems solved by technology

[0006] Furthermore, China Taiwan No. 091121022 patent case proposes to form the recording layer with more than two sub-recording layers, and after irradiating the recording laser, the materials of the sub-recording layers are diffused and mixed, so that the reflectivity Forming a recording mark with reduced characteristics can also provide more choices for the industry, but because of the numerous processes, the production cost cannot be reduced, which affects the popularity of the product

[0007] This shows that the above-mentioned existing write-once optical recording medium obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently.

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but for a long time no suitable design has been developed, and the general product has no suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. Urgent problem

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