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Coating material application-Storage field
更新时间: 2021-11-03 09:35:49 访问次数: 0

Coating material application-Storage field

 
The 21st century is a high-tech era of informatization and digitization of information. The requirements for ultra-high-density storage and high-speed transmission of information have promoted the further development of high-tech information. Advanced electronic computers, surveillance cameras, and automated equipment for acquiring, processing, storing, and transmitting various information all require storage. Information storage includes magnetic information storage, magneto-optical information storage, all-optical information storage, and phase-change storage. Magnetic memories such as magnetic disks, magnetic heads, drums, tapes, etc. use the ferromagnetic properties of magnetic materials to store information. Target materials for sputtering thin film recording include alloys such as chromium-based, cobalt-based, cobalt-iron-based, and nickel-based. Optical recording targets mainly refer to sputtering targets used in optical disc manufacturing. An optical disc with a simple structure is mainly composed of a substrate, a recording layer, a reflective layer, a protective layer and a printing layer. The optical disc with a complex structure has more than 10 layers. The recording layer, reflector and protective layer are mainly related to the sputtering target. Phase change storage materials mainly include germanium, antimony, tellurium, scandium, antimony, tellurium, and GAST.


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