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US 2016/0078887 A1Published application
Main pole layer with at least two sacrificial layers and a gap layer
AssigneeSeagate Technology LLC
InventorsWei Tian, Venkateswara Rao Inturi, Dong Lin, Huaqing Yin, Jiaoming Qiu
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Abstract
In accordance with one embodiment, a method may be implemented by depositing a non-magnetic gap layer of material above a main pole layer of magnetic material; depositing a sacrificial layer of material above the non-magnetic gap layer of material; etching a portion of the sacrificial layer of material while not entirely removing the sacrificial layer of material; and depositing additional sacrificial material to the etched sacrificial layer.
Claims10
A method of forming a uniform gap between two magnetic materials, the method comprising:
- depositing a non-magnetic gap layer of material above a main pole layer of magnetic material;
- depositing a sacrificial layer of material above the non-magnetic gap layer of material;
- etching a portion of the sacrificial layer of material while not entirely removing the sacrificial layer of material;
- depositing additional sacrificial material to the etched sacrificial layer.
1 more element
Dependencies are inferred from the claim text.