Method for assembly level disk erase

Details Method for assembly level disk erase Method for assembly level disk erase

2006-08-15

2006-08-15

Young, Wayne (Department: 2651)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

C360S137000

Reexamination Certificate

active

07092188

ABSTRACT:
A method of erasing information on one or more disks in a disk drive uses a high strength magnetic field to erase the disks while the disks are in the HDD assembly. The design of the head disk enclosure provides a reduced thickness in a localized region over the disks. This allows a narrower working magnetic gap of the HDD level disk erase apparatus. The localized region of the HDD may be a formed indentation on the top cover, elimination of flange, and reduced floor thickness of the HDD base.

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patent: 2002/0021521 (2002-02-01), Kitahori et al.
patent: 2004/0051989 (2004-03-01), Hasegawa et al.

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