10 Gb/in/sup 2/ recording with DSMR AMR heads on low noise thin film disks


Areal density of 5 Gb/inz with AMR SAL was demonstrated[l] in the past, and more recently, with DSMR heads 121. Areal density of more than 10 Gb/in* with spin valve heads has been reported this yeafl5,SJ. However, in these demonstrations, there appears to have some practical weaknesses which make them unattractive for immediate practical applications. The details for the above spin valve heads has yet to be published but in one case [6]. using FIB write heads together with spin valve read heads is not yet practical. Here we will report 10 Gb/inz demonstration using dual stripe magneto-resistive heads [DSMR] with the current manufacturing process.


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