A new integrated suspension for pico-sliders (pico-CAPS)

Ohwe, T.; Watanabe, Takuma; Yoneoka, S.; Mizoshita, Y.

doi:10.1109/20.538716

Cited by 23 publications

(6 citation statements)

References 4 publications

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“…That is, shock resistance becomes a greater problem in small form factor (SFF) optical storage devices. Generally, the external shock acceleration that causes head-disk interface (HDI) failures is related to the acceleration that causes the head-disk separation (Jen et al, 1997;Ohwe et al, 1996).…”

Section: Design Of Ofh Suspensionmentioning

confidence: 99%

GA based meta-modeling of BPN architecture for constrained approximate optimization

Lee

Kang

2007

International Journal of Solids and Structures

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Artificial neural networks (ANN) have been extensively used as global approximation tools in the context of approximate optimization. ANN traditionally minimizes the absolute difference between target outputs and approximate outputs, thereby resulting in approximate optimal solutions being sometimes actually infeasible when it is used as a meta-model for inequality constraint functions. The paper explores the development of the modified back-propagation neural network (BPN) based meta-model that ensures the constraint feasibility of approximate optimal solution. The BPN architecture is optimized via genetic algorithm (GA) to determine integer/continuous decision parameters such as the number of hidden layers, the number of neurons in a hidden layer, and interconnection weights between layers in the network. The verification of the proposed approach is examined by adopting a number of standard structural problems and an optical disk drive (ODD) suspension problem. Finally, GA based approximate optimization of suspension with optical flying head (OFH) is conducted to enhance the shock resistance capability in addition to dynamic characteristics.

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Section: Design Of Ofh Suspensionmentioning

confidence: 99%

GA based meta-modeling of BPN architecture for constrained approximate optimization

Lee

Kang

2007

International Journal of Solids and Structures

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“…One is to minimize moving mass. The other is to compensate the bad influence of head suspension's resonance on tracking accuracy because the maximum resonance of head suspensions achieved so far (Ohwe et al (1996)) is lower than required resonance (20 kHz) for fine head tracking. The electrostatic actuator with multiple parallel plate electrodes has no hysteresis and no magnetic fluxes, and its generating force is relative large.…”

Section: Design Conceptsmentioning

confidence: 99%

An electrostatic microactuator using LIGA process for a magnetic head tracking system of hard disk drives

Nakamura

Suzuki²,

Ataka³

et al. 1998

Microsystem Technologies

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International audienceWe demonstrate an electrostatic micro actuator which is fabricated by LIGA process. The actuator is designed for a magnetic head tracking system of hard disk drives (HDDs). The actuator is essential to achieve very high track density of HDDs. We realize the aspect ratio of 125 by the LIGA process using a Si-Au mask. We propose to use PMMA molds both as the mechanical structure and as the insulator between electrodes. We believe there are great opportunity for the LIGA process in making micro actuators of HDDs

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“…Such damage can de@e HDI performance [ 1 , 21. The damage can be reduced by reducing the equivalent mass of the suspension, which can be done by miniaturizing the suspension [3]. Increasing the slider load can increase the critical acceleration at which the slider begins to jump [I].…”

Section: Introductionmentioning

confidence: 99%

Development of shock proof suspension [disk drive]

Tokuyama

Katou²,

Shimizu³

et al. 1999

IEEE Trans. Magn.

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High speed video camera observation of a slider behavior after an external shock revealed that the slider jumps first and then re-contacts with the disk at i t s leading edge. We found an imprint at the re-contact position o n the disk. We developed a suspension s y s t e m that' has a roof i n the load beam that reduces the re-contact angle and the contact stress. We found that a magnetic disk device incorporating the system sustained no read errors for the external shocks up to 700 G . IndexTermsdisk damage, external shock, shockproof suspension, slider behavior

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A new integrated suspension for pico-sliders (pico-CAPS)

Cited by 23 publications

References 4 publications

GA based meta-modeling of BPN architecture for constrained approximate optimization

GA based meta-modeling of BPN architecture for constrained approximate optimization

An electrostatic microactuator using LIGA process for a magnetic head tracking system of hard disk drives

Development of shock proof suspension [disk drive]

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