Method of manufacturing disk substrate

Details Method of manufacturing disk substrate Method of manufacturing disk substrate

2008-12-17

2010-10-05

Eley, Timothy V (Department: 3724)

Abrading

Abrading process

Glass or stone abrading

C451S057000, C451S058000

Reexamination Certificate

active

07806751

ABSTRACT:
A method of manufacturing a disk substrate includes a disk substrate forming step of forming a disk substrate; and an outer chamfering step of chamfering an outer edge of the disk substrate. The outer chamfering step includes chamfering the outer edge by bringing an end surface of a cylindrical-shaped outer chamfering grindstone having a hollow portion on its end into contact with the outer edge such that the hollow portion faces the outer edge while rotating each of the outer chamfering grindstone and the disk substrate.

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U.S. Appl. No. 12/249,341, filed Oct. 10, 2008, Suzuki, et al.

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