Heat assisted magnetic recording head with multilayer electromagnetic radiation emission structure
AssigneeSeagate Technology LLC
InventorsRobert E. Rottmayer, Michael A. Seigler
Life of this patent
Estimating the term…
Abstract
A heat assisted magnetic recording head with a multilayer electromagnetic (EM) radiation emission structure. The multilayer EM radiation emission structure is in optical communication with a light source for heating a recording medium. Particularly, the multilayer EM radiation emission structure includes a conducting layer for receiving the light source and a protective layer formed adjacent the conducting layer to protect the conducting layer from contact with a recording medium. An aperture extends through the conducting layer in the protective layer to allow the light source to pass therethrough to heat the recording medium.
Claims20
A heat assisted magnetic recording head for use in conjunction with a recording medium, comprising:
- means for applying a magnetic write field to the recording medium;
- means for providing a light source;
- and
- a multilayer electromagnetic radiation emission structure in optical communication with said means for providing a light source, said multilayer electromagnetic radiation emission structure defining an aperture that extends therethrough.
A multilayer electromagnetic radiation emission structure in optical communication with a light source for heating a recording medium, comprising:
- a conducting layer for receiving the light source, said conducting layer defining a first aperture that extends therethrough;
- and
- a protective layer formed adjacent said conducting layer, said protective layer defining a second aperture that extends therethrough and that is aligned with said first aperture to allow the light source to pass through said first and second apertures to heat the recording medium.
A method of making a multilayer electromagnetic radiation emission structure for use with a light source to heat a recording medium, comprising:
- depositing a conducting layer for optically communicating with the light source;
- depositing a protective layer adjacent the conducting layer for protecting the conducting layer from contact with the recording medium;
- and
- forming an aperture that extends through the conducting layer and the protective layer to allow the light source to pass therethrough to heat the recording medium.
Dependencies are inferred from the claim text.