| 摘要 |
A method of manufacturing a patterned data/information storage and retrieval medium in the form of an annular disk having an outer diameter, a central opening defining an inner diameter, and opposed first and second major surfaces, the method including inserting a smaller diameter cylindrical shaft of a stamping/imprinting tool in the central opening and biasing the inner diameter of the disk into contact with the cylindrical shaft at a pre-selected location along the inner diameter of the disk during stamping/imprinting of a pre-selected pattern such as a servo pattern in at least one of the first and second major surfaces of the disk, the biasing creating a space between the inner diameter of the disk and the surface of the cylindrical shaft which has a maximum width at a location diametrically opposite the pre-selected location. A disk drive system is then formed by mounting the patterned medium on a drive spindle shaft with the medium biased into contact with the shaft at the pre-selected location along the inner diameter of the medium, whereby proper centering of the servo pattern is provided.
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