Magnetic head provided with moment-reducing contact for data storage medium
AssigneeFujitsu Limited
InventorsTohru Fujimaki, Tsuyoshi Matsumoto
Life of this patent
Estimating the term…
Abstract
A magnetic head is provided with a substrate and a magnetic field generating coil formed on the substrate. The substrate has a principal surface facing a storage disk and divided into an inner area and an outer area surrounding the inner region. The magnetic head also includes a dielectric layer enclosing the coil and facing the storage disk. The dielectric layer is formed in the inner area of the principal surface of the substrate but not in the outer area. As tilting, the storage disk comes into contact with the dielectric layer, thereby being prevented from bumping into the outer area of the principal surface of the substrate.
Claims14
A magnetic head comprising:
- a coil for generating a magnetic field applied to a recoding medium;
- a substrate having a principal surface facing the recording medium, the principal surface including an inner region and an outer region surrounding the inner region;
- and
- a contact member facing the recording medium, the contact member coming into contact with the recording medium when the recoding medium tilts;
- wherein the contact member is disposed only within the inner region of the principal surface so as to prevent the recoding medium tilted from coming into contact with the outer region of the principal surface.
A magnetic head comprising:
- a substrate including a principal surface facing a recoding medium;
- a magnetic field generating coil formed on the principal surface of the substrate and comprising a first conductor and a second conductor that is located closer to the recoding medium than the first conductor is;
- and
- a dielectric layer formed on the principal surface of the substrate and enclosing the coil;
- wherein the second conductor is smaller in outer diameter than the first conductor, and
- wherein the dielectric layer has a stepped configuration that comprises a first portion enclosing the first conductor and a second portion enclosing the second conductor, the second portion being smaller in size than the first portion.
Dependencies are inferred from the claim text.