HDDのトライボロジー

抄録

Tribology of the disk-head interface in hard-disk drives (HDDs) was reviewed in this article. The HDD has become a very popular device in our life, and been used for some consumer electronics. Tribology is an essential technology for the progress of HDDs. As the flying height of magnetic head has been reduced with increasing areal recording density, disk-head interference in case of contact is one of the greatest concerns for the reliability of HDDs. It is a very important subject of tribology for HDDs to develop the way to keep the head flying stable for avoiding the occasion of disk-head interference, or the way to allow contact without any troubles for recording operation. In future, development of a continuous contact recording system is expected to achieve ultimate magnetic spacing for endless demands to increase recording density.