Optimizing Vibration Isolation of Flex Circuits in Hard Disk Drives
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Flex circuits are a laminate of polyimide substrate, adhesive, and copper conductors, and they are used to connect the (stationary) electronic components in a hard disk drive to the (rotating) arm that positions the read/write heads above the disk. The transverse and longitudinal vibration of flex circuits couples with motion of the read/write heads and contributes to increased settling time and residual vibration following repositioning of the arm from one data track to another. In this paper, the results of parameter, optimization, and experimental studies are discussed with a view toward increasing the isolation of vibration between the flex circuit to the arm in terms of a metric involving one or several important vibration modes.
2004 ◽
Vol 127
(2)
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pp. 165-172
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2012 ◽
Vol 197
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pp. 292-296
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2009 ◽
Vol 3
(3)
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pp. 277-285
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1999 ◽
Vol 220
(4)
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pp. 683-694
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