Energy assisted magnetic recording transducer having an electronic lapping guide corresponding to a near-field transducer
View Patent ↗An energy assisted magnetic recording (EAMR) transducer having an air-bearing surface (ABS) is described. The EAMR transducer includes at least one near-field transducer (NFT) and an electronic lapping guide (ELG) substantially coplanar with a portion of the at least one film. In some aspects, the NFT includes a disk portion and a pin portion. The pin is between the disk portion and the ABS. The pin portion corresponds to a critical dimension of the NFT from an ABS location.
1. A slider comprising:
at least one transducer having an air-bearing surface (ABS) and including at least one near-field transducer (NFT); and
at least a portion of an electronic lapping guide (ELG) substantially coplanar with the disk portion of the at least one NFT.
2. The slider of claim 1 wherein the at least one NFT has a disk portion and a pin portion having a critical dimension from the ABS, the disk portion corresponding to the portion of the at least one NFT.
3. The slider of claim 2 wherein the disk portion has a first thickness and the pin portion has a second thickness different from the first thickness.
4. The slider of claim 3 wherein the first thickness is greater than the second thickness.
5. The slider of claim 2 wherein the disk portion has a first thickness and the pin portion has a second thickness substantially the same as the first thickness.
6. The slider of claim 2 wherein the disk portion has a circular cross section.
7. The slider of claim 2 wherein the disk portion has a non-circular cross section.
8. The slider of claim 7 wherein the disk portion has a rectangular cross section.