DocumentCode
2823903
Title
Development of the pushpin free STW
Author
Uematsu, Y. ; Fukushi, M. ; Taniguchi, K.
Author_Institution
HDD Div., Fujitsu Labs. Ltd., Kawasaki, Japan
fYear
2000
fDate
6-8 Nov. 2000
Abstract
In order to realize super-high density TPI, it is necessary to greatly reduce track misregistration. For this purpose, it is necessary to reduce the amount of repeatable position errors (RPE) and improve the writing accuracy of position error signals (PES) of servo track writers (STW), in parallel with reducing non-repeatable position errors (NRPE) with fluid dynamic bearings or piggyback actuators employed. This paper introduces a new, low-priced STW system of high efficiency, with a high precision writing performance.
Keywords
disc drives; servomechanisms; TPI; fluid dynamic bearing; magnetic disk drive; nonrepeatable position error; piggyback actuator; position error signal; pushpin-free STW; repeatable position error; servo track writer; track misregistration; Actuators; Costs; Detectors; Drives; Fluid dynamics; Gratings; Optical interferometry; Optical sensors; Servomechanisms; Writing;
fLanguage
English
Publisher
ieee
Conference_Titel
Asia-Pacific Magnetic Recording Conference, 2000. APMRC 2000
Conference_Location
Tokyo, Japan
Print_ISBN
0-7803-6254-3
Type
conf
DOI
10.1109/APMRC.2000.898937
Filename
898937
Link To Document