Abstract: Processes include aligning a disc with a template at a location so that the pattern from the template is transferred to the disc in a relative orientation. The relative orientation provides that when the disc with the transferred pattern is finally assembled into a hard disc drive, an inner diameter of the spindle hole of the disc may be abutted against an outer diameter of the disc drive spindle, and the data-containing patterns on the discs will be aligned concentrically with a center of the disc drive spindle. While the data-containing patterns are aligned concentrically with the disc drive spindle, the substrate itself is allowed to be non-concentric.
December 2, 2009
June 2, 2011
SEAGATE TECHNOLOGY LLC
Gennady Gauzner, David S. Kuo, Justin Jia-Jen Hwu, Li-Ping Wang, Zhaoning Yu, Kim Yang Lee