Write head having a dry-etchable antireflective intermediate layer
AssigneeRead-Rite Corporation
InventorLiubo Hong
Life of this patent
Estimating the term…
Abstract
A method and system for providing a write head is disclosed. The write head includes at least one pole and an insulating layer. The at least one pole is for writing magnetic data. The method and system include providing an intermediate layer and providing at least one conductive coil. The intermediate layer is disposed between the insulating layer and the at least one conductive coil. The intermediate layer is composed of at least one material capable of being dry etched. The at least one conductive coil is in proximity to the at least one pole and is for carrying a current to energize the at least one pole during writing.
Claims9
A write head including at least one pole for writing magnetic data, the write head also including an insulating layer, the write head comprising:
- at least one conductive coil in proximity to the at least one pole, the at least one conductive coil for carrying a current to energize the at least one pole for writing the magnetic data;
- and
- an intermediate layer disposed between the insulating layer and the at least one conductive coil, the intermediate layer being composed of at least one material capable of being dry etched;
- and
- wherein the at least one material of the intermediate layer is WN.
A write head including at least one pole for writing magnetic data, the write head also including an insulating layer, the write head comprising:
- at least one conductive coil in proximity to the at least one pole, the at least one conductive coil for carrying a current to energize the at least one pole for writing the magnetic data;
- and
- an intermediate layer disposed between the insulating layer and the at least one conductive coil, the intermediate layer being composed of at least one material capable of being dry etched, the intermediate layer having a first thickness;
- and
- a glue layer disposed between the intermediate layer and the insulating layer, the glue layer having a second thickness, the second thickness being less than the first thickness;
- wherein the intermediate layer acts as a bottom antireflective coating layer for reducing reflections.
A write head including at least one pole for writing magnetic data, the write head also including an insulating layer, the write head comprising:
- at least one conductive coil in proximity to the at least one pole, the at least one conductive coil for carrying a current to energize the at least one pole for writing the magnetic data;
- and
- an intermediate layer disposed between the insulating layer and the at least one conductive coil, the intermediate layer being composed of at least one material capable of being dry etched, the intermediate layer having a first thickness;
- and
- a seed layer disposed between the intermediate layer and the at least one conductive coil, the seed layer having a second thickness, the second thickness being less than the first thickness;
- wherein the intermediate layer acts as a bottom antireflective coating layer for reducing reflections.
Dependencies are inferred from the claim text.