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Microsystem Technologies
Published in: Microsystem Technologies 8-9/2014

01-08-2014 | Technical Paper

HAMR HDD shock responses

Authors: Lidu Huang, Kenzi Suzuki, Fu-Ying Huang, Toshiki Hirano, Barry Stipe

Published in: Microsystem Technologies | Issue 8-9/2014

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Abstract

Heat assisted magnetic recording (HAMR) and slim mobile hard disk drives (HDD) are being developed parallelly to maintain cost advantage over the solid state drive. Operational shock and non-operational shock capabilities are seriously challenged for the slim HDDs due to reduced stiffness (thickness). It is worse for slim HAMR drives due to additional laser diode (LD) and other necessities being added on slider. Shock tests are part of the key performance matrices that must be passed in HDD reliability tests, and the concerns for HAMR mobile drives are, (1) slider lift-off G-level degradation during op-shock, and (2) LD back-to-back hitting during non-operational shock. We studied a few potential HAMR HGA designs, also analyzed a design that improves drive op-shock performances.
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Literature
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Huang L, Watson S, Edwards J, Zhang Q, Myers D, Larson N (2008) A robust latch design. ASME ISPS, ANS-B3, Santa Clara
Juang JY, Huang FY, Takashi T (2012) Baseplate with recessed region in a hard disk drive, US Patent 8339732
Stipe B (2010) Magnetic recording at 1.5 Pb m−2 using an integrated plasmonic antenna. Nature Photonics 4:484–488CrossRef
TDK Corp (2012) TDK Showcases HAMR hard disk with record areal density, CEATEC Japan
Wu AQ et al. (2012) HAMR areal density demonstration of 1 + Tbpsi on Spinstand IEEE TMRC
Metadata
Title
HAMR HDD shock responses
Authors
Lidu Huang
Kenzi Suzuki
Fu-Ying Huang
Toshiki Hirano
Barry Stipe
Publication date
01-08-2014
Publisher
Springer Berlin Heidelberg
Published in
Microsystem Technologies / Issue 8-9/2014
Print ISSN: 0946-7076
Electronic ISSN: 1432-1858
DOI
https://doi.org/10.1007/s00542-014-2178-8

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