Patent ID: 8325443
Filing Date: 2012-12-04
Classification: G11B

Abstract:
1. A magnetic disk device comprising: a magnetic disk having a surface coated with a lubricant; and a magnetic head which reads and writes information from and on the magnetic disk, the magnetic head having a magnetic head slider formed with a distal end read/write element thereon, the magnetic head slider flying by an action of air during rotation of the magnetic disk; wherein an inflow of air from a direction of a leading side face of the magnetic head slider enters a spatial gap between the magnetic head slider and the magnetic disk proximate to the leading side face, thus forming an air bearing film effect at an air bearing surface face of the magnetic head slider which faces the magnetic disk, and the air flows out from a trailing side face of the magnetic head slider; and wherein the magnetic head slider has a wettability, in at least a part of an outer region defined on the trailing side face and adjoining other faces including the air bearing surface face of the magnetic head slider, which is lower than a wettability of at least one other region present at the trailing side face.