Title :
An experiment for head positioning system using submicron track-width GMR head
Author :
Yoshikawa, Norio ; Kitagawa, Katsuyoshi ; Takakura, Shinji ; Takakado, S.
Author_Institution :
Inf. & Commun. Syst. Lab., Toshiba Corp., Kawasaki, Japan
fDate :
9/1/1996 12:00:00 AM
Abstract :
This paper presents the results of a head positioning experiment conducted with the aim of submicron track-width recording. It was confirmed that the high-Bs and small-gap head can provide uniform and precise servo pattern. By combining with an experimental HDD which employed a 1 μm track-width GMR head and a fluid-bearing spindle motor and a narrow track-width servo writing, position error signal of about 47 nm was attained for 18 kTPI recording. This result convinced us of the feasibility of submicron track HDDs
Keywords :
giant magnetoresistance; hard discs; magnetic heads; magnetoresistive devices; position control; servomechanisms; GMR head; HDD; fluid-bearing spindle motor; head positioning system; position error signal; servo pattern; submicron track-width recording; Electronic mail; Hydraulic actuators; Magnetic heads; Magnetization; Piezoelectric actuators; Pneumatic actuators; Position measurement; Servomechanisms; Servomotors; Writing;
Journal_Title :
Magnetics, IEEE Transactions on
