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Performance-optimized design of electromagnetic micro-actuator for Probe recording storage device

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Abstract

In this paper the performance-optimized design of an electromagnetic micro-actuator for a Probe data-storage system is described. The Probe recording system considered in this study consists of a MEMS-based recording head array that can translate relative to a Ferroelectric media substrate. The probe device is slated to achieve 1 Tb/in2 recording density and a read/write data rate of 100 Mb/s while operating within a total power budget of 100 mW. Stringent requirements apply to the form-factor and packaging, power consumption, and operating environment making the design of the mechanical architecture and in particular, the actuator a challenging task. A methodology based on an analytical model framework for performance-optimal design of the actuator meeting these constraints is developed and presented.

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Acknowledgments

The authors would like to thank Andre Liem, Edward Acciardi, and Richard O’Day for their suggestions, Brian Snyder for helping with actuator force measurements, and Seagate Technology for supporting this work.

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Authors and Affiliations

  1. Seagate Technology, Mechanical Research and Development, 7801 Computer Ave. South, Bloomington, MN, 55435, USA

    Narayanan Ramakrishnan, Mark D. Bedillion & Patrick B. Chu

Authors
  1. Narayanan Ramakrishnan
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  2. Mark D. Bedillion
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  3. Patrick B. Chu
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Correspondence to Narayanan Ramakrishnan.

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Ramakrishnan, N., Bedillion, M.D. & Chu, P.B. Performance-optimized design of electromagnetic micro-actuator for Probe recording storage device. Microsyst Technol 20, 1159–1168 (2014). https://doi.org/10.1007/s00542-014-2142-7

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  • DOI: https://doi.org/10.1007/s00542-014-2142-7

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