RECORDABLE OPTICAL RECORDING MEDIUM
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United States of America Patent
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Issued Date -
Oct 4, 2012
app pub date -
Mar 28, 2012
filing date -
Mar 31, 2011
priority date (Note) -
Abandoned
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Abstract
A recordable optical recording medium having inorganic films prepared by sputter coating is disclosed. The recordable optical recording medium includes a substrate; one or more film stacked structures sequentially formed on a surface of the substrate to respectively function as an independent recording layer structure and include from top to bottom a reflective film, an upper dielectric film, one or more recording films, a lower dielectric film and a barrier film; an interlayer separating layer located between two adjacent film stacked structures to isolate them from each other; and a ZrO2-based interface film additionally formed in each of the film stacked structures between the reflective film and the upper dielectric film. With these arrangements, the recordable optical recording medium can have improved environmental resistance and optimized electrical characteristics.
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