Lee, DY Hwang, J Bae, GN 2024-01-21T07:42:03Z 2024-01-21T07:42:03Z 2021-09-02 2004-01 0946-7076 https://pubs.kist.re.kr/handle/201004/137975 In high-density hard disk drives, the slider should be made to fly close to the magnetic recording disk to generate better signal resolution and at an increasingly high velocity to achieve better data rate. The slider disk interaction in CSS (contact-start-stop) mode is an important source of particle generation. Contamination particles in the hard disk drive can cause serious problems including slider crash and thermal asperities. We investigated the number and the sizes of particles generated in the hard disk drive, operating at increasing disk rotational speeds, in the CSS mode. Condensation nucleus counter (CNC) and PSS (particle size selector) were used for this investigation. In addition, we examined the particle components by using SEM (scanning electron microscopes), AES (auger electron spectroscopy) and TOF-SIMS (time of flight-secondary ions mass spectrometry). The increasing disk rotational speed directly affected the particle generation by slider disk interaction. The number of particles that were generated increased with the disk rotational speed. The particle generation rate increased rapidly at motor speeds above 8000 rpm. This increase may be due to the increased slider disk interaction. Particle sizes ranged from 14 to 200 nm. The particles generated by slider disk interaction came from the lubricant on the disk, coating layer of the disk, and also slider surface. English SPRINGER-VERLAG FLYING-HEIGHT SLIDER WEAR DYNAMICS CARBON HEADS Effect of disk rotational speed on contamination particles generated in a hard disk drive Article 10.1007/s00542-003-0327-6 1 MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, v.10, no.2, pp.103 - 108 MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS 10 2 103 108 scie scopus 000187918800004 2-s2.0-1142288271 Engineering, Electrical & Electronic Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Engineering Science & Technology - Other Topics Materials Science Physics Article FLYING-HEIGHT SLIDER WEAR DYNAMICS CARBON HEADS Hard disk drive Particle Disk rotational speed