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US 2006/0050433 A1Published application
Narrow pitch tape head array using an orthogonal backgap
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsEdward Lee, David Seagle
Life of this patent
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Abstract
The structure for a closely spaced, coplanar tape head array is disclosed. Narrow pitch is obtained by utilizing an orthogonal backgap structure, wherein the width of the backgap is less than the depth, thereby narrowing the footprint of individual head structures. The increased cross sectional area of the orthogonal backgap and revised yoke design ensure sufficient magnetic field strength at the write gap of each head.
Claims15
A magnetic head structure, comprising:
- a lower pole;
- an upper pole;
- and,
- a backgap structure magnetically coupling said lower pole and said upper pole, said backgap structure having a backgap depth greater than a backgap width.
1 more element
A magnetic head structure, comprising:
- a lower pole including a lower pole layer magnetically coupled to a lower pole tip;
- an upper pole including a yoke magnetically coupled to an upper pole tip;
- a write gap disposed between said lower pole tip and said upper pole tip at an air bearing surface;
- and,
- a backgap structure magnetically coupling said lower pole layer and said yoke, said backgap structure having a backgap depth greater than a backgap width.
2 more elements
A magnetic head array comprising:
- a first magnetic head further comprising
- a first lower pole including a lower pole layer magnetically coupled to a first lower pole tip,
- a first upper pole including a first yoke magnetically coupled to a first upper pole tip,
- a first write gap disposed between said first lower pole tip and said first upper pole tip at an air bearing surface, and
- a first backgap structure magnetically coupling said lower pole layer and said first yoke, said first backgap structure having a first backgap depth greater than a first backgap width;
- a second magnetic head further comprising
- a second lower pole including said lower pole layer magnetically coupled to a second lower pole tip,
- a second upper pole including a second yoke magnetically coupled to a second upper pole tip,
- a second write gap disposed between said second lower pole tip and said second upper pole tip at said air bearing surface, and
- a second backgap structure magnetically coupling said lower pole layer and said second yoke, said second backgap structure having a second backgap depth greater than a second backgap width;
- wherein said first magnetic head is adjacent to said second magnetic head.
8 more elements
Dependencies are inferred from the claim text.