A magnetic recording medium back coating layer maintains a spacing difference of 3 nm or less under varying pressure to prevent lubricant transfer.
A magnetic recording medium controls surface roughness and projection height distribution to optimize the interface between the tape and read head.
A magnetic recording medium nonmagnetic layer with controlled void ratio and size distribution prevents head abrasion during repeated running.
Sputtering a granular ruthenium-oxide layer at 3-10 Pa resolves the crystallinity versus surface hardness trade-off in magnetic recording media.
Manufacturing methods remove the magnetic recording film from rejected products using polishing to create functional dummy substrates, reducing material costs.
An oxide trapping layer captures migrating magnesium before it reacts with silicon dioxide, preventing SiMgO formation and maintaining thermal conductivity.