Write head with variable side shield gaps
AssigneeWestern Digital (Fremont), LLC
InventorsShaoping Li, Ge Yi, Feng Liu
Life of this patent
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Abstract
A magnetic recording head comprises a write pole including a throat region with a leading edge, a trailing edge opposite the leading edge, and first and second side edges opposite one another. The magnetic recording head further comprises a first side wall gap layer disposed alongside the first side edge of the throat region, and a second side wall gap layer disposed alongside the second side edge of the throat region. Each of the first and second side wall gap layers has a first width at the leading edge of the throat region smaller than a second width at the trailing edge of the throat region.
Claims13
A magnetic recording head, comprising:
- a write pole comprising a throat region with a leading edge, a trailing edge opposite the leading edge, and first and second side edges opposite one another;
- a first side wall gap layer disposed alongside the first side edge of the throat region;
- a second side wall gap layer disposed alongside the second side edge of the throat region;
- a first side shield disposed alongside the first side wall gap layer and extending at least from the leading edge to the trailing edge;
- and
- a second side shield disposed alongside the second side wall gap layer and extending at least from the leading edge to the trailing edge;
- wherein each of the first and second side wall gap layers has a first width at the leading edge of the throat region smaller than a second width at the trailing edge of the throat region, and wherein a width of the first and second side wall gap layers monotonically increases from the leading edge of the throat region to the trailing edge of the throat region.
Dependencies are inferred from the claim text.