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US 12,159,658 B1Granted
Chamfer formation on data storage disc substrates
AssigneeSeagate Technology LLC
InventorsSideq Bin Salleh, Mohd Arobi Bin Awang, Gary Anak Kelunie
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Abstract
A method includes partially forming a top chamfer on a disc substrate with a first brush, and partially forming a bottom chamfer on the disc substrate with a second brush. The method also includes completing the formation of the bottom chamfer with the first brush, and completing the formation of the top chamfer with the second brush.
Claims14
A method comprising:
- coupling a bottom end of a two-way pole with a plurality of disc substrates mounted thereon to a base connected to a substrate polishing machine;
- partially forming a top chamfer on each disc substrate of the plurality of disc substrates with a first brush of the substrate polishing machine;
- partially forming a bottom chamfer on each disc substrate of the plurality of disc substrates with a second brush of the substrate polishing machine;
- and
- after the top and bottom chamfers are partially formed, with positions of the first and second brushes remaining unchanged, disconnecting the bottom end of the two-way pole from the base, and connecting a top end of the two way pole to the base, thereby flipping the plurality of disc substrates and enabling the bottom chamfers to be completed by the first brush and the top chamfers to be completed by the second brush.
2 more elements
A method comprising:
- partially forming a top chamfer on a disc substrate with a first brush;
- partially forming a bottom chamfer on the disc substrate with a second brush;
- completing the formation of the bottom chamfer with the first brush;
- and
- completing the formation of the top chamfer with the second brush.
2 more elements
Dependencies are inferred from the claim text.