Dynamic magnetic information storage or retrieval – Record medium – Disk
Patent
1998-04-22
2000-04-25
Miller, Brian E.
Dynamic magnetic information storage or retrieval
Record medium
Disk
369286, G11B 582
Patent
active
060551402
ABSTRACT:
An injection molded plastic disc substrate incorporating a stiff insert made of a very stiff material (metal, ceramic, composite . . . e.g. silicon) embedded in the plastic matrix. Preferably, the insert has a circular center region and radially extending fingers. Additional features of the web may include one or more chordal connecting elements extending between the fingers. In this way, both vibration or flutter in the circumferential or radial direction is suppressed by the insert.
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J. McAllister, "Disk Flutter: Causes and Potential Cures", Data Storage, May/Jun. 1997, pp. 29-34.
Miller Brian E.
Seagate Technology Inc.
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