Optical disk with pattern and fabrication method thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 11, 2004
Issued Date -
N/A
app pub date -
Sep 1, 2000
filing date -
Jul 9, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
On a data recording region, an aluminum reflective film is formed together with a reflective film forming a pattern on an outer circumferential side of the data recording region. Although aluminum identical to the material of the reflective film on the data recording region can be employed for the reflective film on the outer circumferential region, gold, titanium and the like can also be used. Therefore, an optical disk that has a unique pattern formed at an outer circumferential region that was not conventionally used can be fabricated at a low cost.
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