DocumentCode
1481016
Title
Analysis of Discharge Mechanism in HDD
Author
Miyatake, Masami ; Kugiya, Fumio ; Kodama, Naoki
Author_Institution
Hitachi Global Storage Technol. Japan, Ltd., Fujisawa, Japan
Volume
11
Issue
2
fYear
2011
fDate
6/1/2011 12:00:00 AM
Firstpage
323
Lastpage
327
Abstract
This paper discusses a discharge mechanism between the head and disk in hard disk drive. The three phases of the discharge mechanism which depend on the voltage difference between the head and disk were observed. In phase 1, no electric discharge occurs. In phase 2, only electric discharge occurs. In phase 3, electric discharge occurs with physical contact of the head to the disk, which causes head reader damage and disk defect growth.
Keywords
disc drives; discharges (electric); hard discs; HDD; discharge mechanism; electric discharge; hard disk drive; Current measurement; Discharges; Electrical resistance measurement; Magnetic heads; Noise; Resistance; Voltage measurement; Discharge; GMR head; TMR head; electrical breakdown; fluid dynamic bearing (FDB) motor; hard disk drive (HDD);
fLanguage
English
Journal_Title
Device and Materials Reliability, IEEE Transactions on
Publisher
ieee
ISSN
1530-4388
Type
jour
DOI
10.1109/TDMR.2011.2132133
Filename
5739106
Link To Document