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US 7,018,681 B2Granted
Reducing UV process time on storage media
AssigneeSeagate Technology LLC
InventorsJianwei Liu, Michael J. Stirniman, Jing Gui
Life of this patent
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Abstract
A perfluoropolyether hard disk lubricant having a UV curable functional end group that may be UV cured at a rapid rate with a Xenon excimer lamp. The perfluoropolyether preferably has at least one UV curable functional end group. In one embodiment, the UV curable end group comprises an acrylate.
Claims8
A method of treating a lubricated hard disc, comprising:
- inserting the lubricated hard disc in a chamber, the lubricated hard disc comprising a lubricant comprising a UV curable functional group;
- irradiating the lubricated hard disc with UV excimer light for a time to create effective saturation of water contact angle;
- and
- purging the chamber with a gas to prevent formation of ozone in the chamber,
- wherein the time to create effective saturation of water contact angle of the lubricant irradiated with UV excimer light is about two orders of magnitude less than a time for effective saturation of water contact angle of a conventional lubricant irradiated with light from a mercury-vapor lamp, the conventional lubricant having a formula:
- wherein q and p are repeat units in the formula.
3 more elements
Dependencies are inferred from the claim text.