发明名称 |
AgSb recording thin film for the inorganic write-once optical disc and the manufacturing method |
摘要 |
A recording material of Ag1-xSbx (x=10.8~25.5 at. %) films for WORM optical disk recording media is invented. The thermal analysis shows that the phase change temperature of AgSb film is between 250 and 270□. The optical property analysis shows that all the as deposited films have good optical absorption and high reflectivity. The X-ray Diffraction analysis shows that the as deposited film and the annealed film are kept at ∈'-AgSb crystalline phase. The TEM analysis shows that the grain size of the Ag80.9Sb19.1 film will grow after annealing. The dynamic test shows that the carrier-to-noise ratio (CNR) of the Ag80.9Sb19.1 optical disc is about 45 dB with lambda=657 nm, NA=0.65 and a linear velocity of 3.5 m/s. These Ag1-xSbx films have good optical absorption, high reflectivity and good carrier-to-noise ratio. It can be used as the WORM optical disk recording film.
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申请公布号 |
US2009176048(A1) |
申请公布日期 |
2009.07.09 |
申请号 |
US20080081058 |
申请日期 |
2008.04.10 |
申请人 |
CMC MAGNETICS CORPORATION |
发明人 |
KUO PO-CHENG;FANG YEN-HSIANG;CHEN PO-WEI;HSU WEI-CHIH;CHIANG DON-YAU;TANG WEI-TAI;MA SHIH-HSIEN |
分类号 |
B32B3/02 |
主分类号 |
B32B3/02 |
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