Energy gradient ion beam deposition of carbon overcoats on...

Details Energy gradient ion beam deposition of carbon overcoats on... Energy gradient ion beam deposition of carbon overcoats on...

2006-03-28

2006-03-28

Resan, Stevan A. (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

C428S835400

Reexamination Certificate

active

07018729

ABSTRACT:
The fabrication of the overcoat layer starts with a low energy ion beam to avoid magnetic layer implantation problems, followed by higher deposition energies where the higher energy atoms are implanted into the previously formed lower energy overcoat layer, rather than the magnetic layer. The energy gradient ion beam deposition process therefore results in a thin overcoat layer that is denser than a comparable layer formed by low energy magnetron sputtering, and which overcoat layer provides good mechanical and corrosion protection to the magnetic layer, without degrading the magnetic properties of the magnetic layer.

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