Title :
Track density constraints in the application of MR head technology
Author :
Chopra, Kiran ; Grammens, Gerald M. ; Weinstein, Robert E.
Author_Institution :
Storage Technol. Corp., Louisville, CO, USA
fDate :
9/1/1992 12:00:00 AM
Abstract :
A disk drive track density model has been developed for dual-element recording heads using a magnetoresistive (MR) reader and an inductive writer. In addition to the usual track misregistration issues, it is shown that the head fabrication tolerances and the spacing between the read and write elements limit track density with a rotary actuator due to skew misalignment. A systems solution of micropositioning that minimizes such problems is proposed
Keywords :
hard discs; magnetic heads; magnetic recording; magnetoresistive devices; MR head technology; MR reader; disk drive track density model; dual-element recording heads; head fabrication tolerances; inductive writer; magnetoresistive heads; micropositioning; read head; read/write head spacing; rotary actuator; skew misalignment; systems solution; track density constraints; track density limitations; track misregistration; write head; Disk drives; Disk recording; Fabrication; Hydraulic actuators; Magnetic heads; Magnetic separation; Monte Carlo methods; Pneumatic actuators; Predictive models; Servomechanisms;
Journal_Title :
Magnetics, IEEE Transactions on
