会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 54. 发明专利
    • OPTICAL STORAGE MEDIUM
    • RU2231136C2
    • 2004-06-20
    • RU99108119
    • 1999-04-15
    • G11B7/24015G11B7/24056G11B7/24
    • FIELD: data accumulation. ^ SUBSTANCE: optical storage medium has substrate made of glass, polycarbonate, polymethyl methacrylate, and acrylate base resin having roughness structure with track-to-track space of 0.3 - 0.4 mum and groove depth of 50 - 800 Angstroms. Formed on substrate is reflecting layer made of aluminum, nickel, copper, platinum, silver, or gold, 500 - 2000 Angstroms in thickness; first insulating layer formed on reflecting layer and made of Si3N4 or ZnZ-SiO2, 100 - 400 Angstroms in thickness; recording layer formed on first insulating layer and made of TbFeCo, NdTbFeCo, or TbFe, 150 - 400 Angstroms in thickness; second insulating later formed on recording layer and made of Si3N4 0r ZnS-SiO2, 300 - 800 Angstroms in thickness; protective layer formed on second insulating layer and made of optically transparent inorganic material or organic material, its thickness being 5 - 100 mum; and lubricating film formed on protective layer, 1 - 3 nm thick, that does not enter in chemical reaction with protective layer. ^ EFFECT: enhanced reliability of data storage. ^ 1 cl, 12 dwg