Invention Grant
- Patent Title: Self-aligned hybrid Au—Rh near field transducer for enhanced reliability
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Application No.: US15011892Application Date: 2016-02-01
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Publication No.: US10262683B2Publication Date: 2019-04-16
- Inventor: Matteo Staffaroni , Xuhui Jin , Weihao Xu , Cherng-Chyi Han , Weisheng Hu , Shengyuan Wang
- Applicant: Headway Technologies, Inc.
- Applicant Address: US CA Milpitas
- Assignee: Headway Technologies, Inc.
- Current Assignee: Headway Technologies, Inc.
- Current Assignee Address: US CA Milpitas
- Agency: Saile Ackerman LLC
- Agent Stephen B. Ackerman
- Main IPC: G11B5/00
- IPC: G11B5/00 ; G11B5/31 ; G11B5/60

Abstract:
A near field transducer (NFT) is formed between a waveguide and main pole layer at an air bearing surface (ABS). The NFT includes a resonator body layer made of Au, for example, with a front side at a first plane that is recessed a first distance from the ABS and a back side that is at a second plane formed parallel to the ABS and first plane. The NFT also has a peg layer with a rectangular peg portion between the ABS and first plane, and a larger back portion between the first and second planes that overlays directly above the resonator body layer. The peg layer is preferably made of Rh to improve mechanical stability of the NFT without significantly degrading overall optical efficiency of the NFT. A blocker may be formed between the ABS and waveguide to prevent light not coupled to the NFT from reaching the ABS.
Public/Granted literature
- US20170221505A1 Self-Aligned Hybrid Au-Rh Near Field Transducer for Enhanced Reliability Public/Granted day:2017-08-03
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