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US 9,437,221 B2Granted
Method of making a transducer head
AssigneeSeagate Technology LLC
InventorsLien Lee, Yongjun Zhao, Lijuan Zou, Mark Henry Ostrowski
Life of this patent
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Abstract
A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a sloped angle such that the milling stops at the etch stop layer.
Claims19
A partial transducer head, comprising:
- a core layer;
- a spacer layer;
- a near field transducer (NFT) layer;
- and
- an etch stop layer formed at least partially on the spacer layer.
2 more elements
A transducer head, comprising:
- a write pole with a notched surface facing a near field transducer (NFT);
- and
- a heat sink layer surrounding the write pole at an air-bearing surface (ABS) of the transducer head, wherein the spacing between the NFT and the write pole is controlled during the manufacture of the transducer head by using a spacer layer and a photo resist.
A partial transducer head, comprising:
- a spacer layer;
- a near field transducer (NFT) layer;
- and
- an etch stop layer formed at least partially on the spacer layer.
1 more element
Dependencies are inferred from the claim text.