Abstract
A novel head system composed of four ball-shaped pads and one small-sized head of a single pole type was investigated for driving of a Co-Cr/permalloy flexible disk of 3.5″ diameter. In the disk drive, the head system was scanned from a position with a radius of from 32 to 38 mm at rates ranging from 400 to 1000 rpm to evaluate the influence on read-write characteristics and the penetration of the SPT head. Steady read-write characteristics were observed in the high density region of some 70 kfci. Since this system is structured to relax the excess stress on the head and the disk, improvement in signal durability is expected in addition to the steady read-write characteristics.
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