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Scanning Electron Beam Desorption Technique for Study of Magne Recording Disk Lubricants

IP.com Disclosure Number: IPCOM000040860D
Original Publication Date: 1987-Feb-01
Included in the Prior Art Database: 2005-Feb-02

Publishing Venue

IBM

Related People

Authors:
Anderson, LC Bhatia, CS Kaufman, KL [+details]

Abstract

Perfluorinated ethers (PFE) are used as lubricants on the sur- faces of magnetic recording disks. Failure to quantify the lubricant distribution on the disk surface has prevented a full understanding of head/disk interactions. Such quantification is possible by use of scanning electron stimulated desorption (SESD). The desorption properties of PFE under e-beam bombardment can determine lubricant distribution at the micron/submicron range. Desorbed ionic fractions from the lubricant are detected by a secondary ion mass spectromemter (SIMS). The advantages in using SESD with SIMS detection are that e-beams can be focused down to submicron beam sizes to give high resolution, and SIMS detectors have high sensitivity and fast response to low levels of ionic species.