1. Development of balanced-type high shock suspension for 0.85-in hard disk drive
- Author
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Kuwajima, Hideki, Kita, Hiromi, Hashi, Hideyuki, Miyamoto, Makoto, Ueno, Yoshihiro, Inagaki, Tatsuhiko, and Matsuoka, Kaoru
- Subjects
Hard disks -- Magnetic properties ,Computer-generated environments -- Analysis ,Computer simulation -- Analysis ,10GB - 14.99GB hard disk drive ,15GB - 19.99GB hard disk drive ,20GB - 25GB hard disk drive ,5GB - 9.99GB hard disk drive ,Hard disk drive ,Over 25GB hard disk drive ,Under 5GB hard disk drive ,Business ,Electronics ,Electronics and electrical industries - Abstract
In this paper, we propose a novel shockproof head gimbals assembly (HGA) structure incorporated with 'a balanced-type head suspension' for 0.85-in hard disk drives (HDDs), and investigated its performance on external shock resistance during read/write operations. Experimental drop impact test results confirm that the 0.85-in drive equipped with the new suspension structure is durable over 2000 G (1.0 ms duration) of external shock, ensuring no head slider and/or disk surface damage. According to computer simulation and experimental results, potential shock resistance of more than 2000 G may also be possible with the head actuator itself, which points to its application in cellular phones. Index Terms--Balanced-type suspension, drop impact test, external shock resistance, hard disk drive, head gimbals assembly, impact acceleration, mobile use, shock-proof.
- Published
- 2006