High-bandwidth hard disk drive tracking using a moving-slider MEMS microactuator

A moving-slider microactuator that enables both high stroke and good linearity for high track pitch HDDs (hard disk drives) was investigated. A new microactuator design called a "bipolar microactuator" was proposed that maintains proper slider grounding. A new microactuator fabrication tec...

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Main Authors: White, M., Hirano, T., Henry Yang, Scott, K., Pattanaik, S., Fu-Ying Huang
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Bandwidth
Bonding
Computer science
control theory
systems
Control theory. Systems
Electronics
Exact sciences and technology
Fabrication
Grounding
Hard disks
Linearity
Manufacturing
Microactuators
Micromechanical devices
Miscellaneous
Sampling methods
Storage and reproduction of information
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creator White, M.
Hirano, T.
Henry Yang
Scott, K.
Pattanaik, S.
Fu-Ying Huang
description A moving-slider microactuator that enables both high stroke and good linearity for high track pitch HDDs (hard disk drives) was investigated. A new microactuator design called a "bipolar microactuator" was proposed that maintains proper slider grounding. A new microactuator fabrication technique was developed that allows the bonding pads to be manufactured on the sidewall of the microactuator chip for easier assembly into an HDD. The microactuator was used to achieve an open loop servo bandwidth of 8 kHz at 80 kHz sampling rate in a server-class HDD. Higher bandwidths may be achieved with higher sampling rates. A description of the dual-stage control scheme is presented.
doi_str_mv 10.1109/AMC.2004.1297684
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identifier ISBN: 0780383001
ispartof The 8th IEEE International Workshop on Advanced Motion Control, 2004. AMC '04, 2004, p.299-304
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Applied sciences
Bandwidth
Bonding
Computer science
control theory
systems
Control theory. Systems
Electronics
Exact sciences and technology
Fabrication
Grounding
Hard disks
Linearity
Manufacturing
Microactuators
Micromechanical devices
Miscellaneous
Sampling methods
Storage and reproduction of information
title High-bandwidth hard disk drive tracking using a moving-slider MEMS microactuator
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