Magnetic disk and method of and apparatus for manufacturing magn

Details Magnetic disk and method of and apparatus for manufacturing magn Magnetic disk and method of and apparatus for manufacturing magn

1996-07-10

1999-03-09

Powell, William

Etching a substrate: processes

Forming or treating article containing magnetically...

156345, 216 67, B44C 122

Patent

active

058795693

ABSTRACT:
To provide a magnetic disk excellent in floating and sliding characteristics in a low floating area. A magnetic disk having a feature that variations in the height of the projections on each surface of protective films in floating ensured areas on both sides of the magnetic disk are .+-.15%, and a magnetic disk device on which the magnetic disk is mounted. A surface processing apparatus for a magnetic disk, including: a first electrode for fixing the magnetic disk, the first electrode having an inside diameter larger than the inside diameter of the non-magnetic substrate; an electrically grounded shield for shielding the first electrode; a second electrode, disposed in parallel to the surface of the magnetic disk, for generating plasma against the surface of the magnetic disk; and a plasma control member, disposed at a position separated from the outer edge of the magnetic disk by a specified distance, for controlling plasma generated against the surface of the magnetic disk; wherein a power is applied between the first and second electrodes for plasma-etching the surface of the magnetic disk.

REFERENCES:
patent: 5411630 (1995-05-01), Nagase et al.
patent: 5549211 (1996-08-01), Nakamura et al.

Affiliated with

Also associated with

Rating

Magnetic disk and method of and apparatus for manufacturing magn does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic disk and method of and apparatus for manufacturing magn, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic disk and method of and apparatus for manufacturing magn will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1317337