- 专利标题: In-situ NFT pre-treatment to accumulate optically transparent material on NFT to improve reliability
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申请号: US17172371申请日: 2021-02-10
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公开(公告)号: US11244703B2公开(公告)日: 2022-02-08
- 发明人: Sukumar Rajauria , Yuichi Aoki , Yukio Kato , Kosuke Nagase , Kiyoshi Hashimoto , Qing Dai
- 申请人: Western Digital Technologies, Inc.
- 申请人地址: US CA San Jose
- 专利权人: Western Digital Technologies, Inc.
- 当前专利权人: Western Digital Technologies, Inc.
- 当前专利权人地址: US CA San Jose
- 代理机构: Patterson & Sheridan, LLP
- 代理商 Steven H. Versteeg
- 主分类号: G11B5/31
- IPC分类号: G11B5/31 ; G11B5/012 ; G11B5/73 ; G11B5/48 ; G11B5/00
摘要:
The present disclosure relates to pretreating a magnetic recording head to increase the lifetime of the magnetic media drive. A transparent smear is purposefully formed on the magnetic recording head to ensure the magnetic recording head does not overheat and lead to a short drive lifetime. The transparent smear is formed from material found in the magnetic media. The transparent smear is formed by pretreating the magnetic recording head with the transparent material from the magnetic media. The pretreating occurs without writing any data to the magnetic media. Once the transparent smear is in place, writing may occur. The magnetic recording head can be retreated at a later time should the transparent smear degrade. Furthermore, if an optically absorbing smear develop, it can be removed and a new transparent smear may be formed.
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