A Head Cleaning Procedure for Heat-Assisted Magnetic Recording
In the heat-assisted magnetic recording (HAMR), write-induced head contamination covering the near-field transducer (NFT) can affect the transmission efficiency of optical energy from the NFT to a recording medium. We have experimentally confirmed that write performances such as data track width and...
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| Veröffentlicht in: | IEEE transactions on magnetics 2017-11, Vol.53 (11), p.1-4 |
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| container_title | IEEE transactions on magnetics |
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| creator | Aoyama, Jun Furukawa, Masaru Nishida, Shuji Tasaka, Kenji Matsuda, Kouji Kuroki, Kenji Ikeda, Masaomi |
| description | In the heat-assisted magnetic recording (HAMR), write-induced head contamination covering the near-field transducer (NFT) can affect the transmission efficiency of optical energy from the NFT to a recording medium. We have experimentally confirmed that write performances such as data track width and signal amplitude change as a function of elapsed write time due to accumulation of the write-induced head contamination. Unintended changes of write performances in a drive can lose the capability to perform magnetic recordings as requested by a host. Here, we introduce the head cleaning procedure which removes the contamination from the interfacing surface of the head by placing it in close proximity to a disk surface. Effectiveness of the cleaning operation for performance stabilization is demonstrated with integrated HAMR drives. Detrimental effects of the mechanical cleaning operation on both head and media reliabilities have not been observed. |
| doi_str_mv | 10.1109/TMAG.2017.2706981 |
| format | Article |
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We have experimentally confirmed that write performances such as data track width and signal amplitude change as a function of elapsed write time due to accumulation of the write-induced head contamination. Unintended changes of write performances in a drive can lose the capability to perform magnetic recordings as requested by a host. Here, we introduce the head cleaning procedure which removes the contamination from the interfacing surface of the head by placing it in close proximity to a disk surface. Effectiveness of the cleaning operation for performance stabilization is demonstrated with integrated HAMR drives. Detrimental effects of the mechanical cleaning operation on both head and media reliabilities have not been observed.</description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/TMAG.2017.2706981</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Cleaning ; Contamination ; Energy transmission ; Hard disk drive (HDD) ; head cleaning ; head contamination ; head-disk interface (HDI) ; Heat-assisted magnetic recording ; heat-assisted magnetic recording (HAMR) ; Magnetic heads ; Magnetic recording ; Magnetic tape ; Magnetism ; Mechanical cleaning ; Media ; Surface contamination ; Transmission efficiency</subject><ispartof>IEEE transactions on magnetics, 2017-11, Vol.53 (11), p.1-4</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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We have experimentally confirmed that write performances such as data track width and signal amplitude change as a function of elapsed write time due to accumulation of the write-induced head contamination. Unintended changes of write performances in a drive can lose the capability to perform magnetic recordings as requested by a host. Here, we introduce the head cleaning procedure which removes the contamination from the interfacing surface of the head by placing it in close proximity to a disk surface. Effectiveness of the cleaning operation for performance stabilization is demonstrated with integrated HAMR drives. Detrimental effects of the mechanical cleaning operation on both head and media reliabilities have not been observed.</description><subject>Cleaning</subject><subject>Contamination</subject><subject>Energy transmission</subject><subject>Hard disk drive (HDD)</subject><subject>head cleaning</subject><subject>head contamination</subject><subject>head-disk interface (HDI)</subject><subject>Heat-assisted magnetic recording</subject><subject>heat-assisted magnetic recording (HAMR)</subject><subject>Magnetic heads</subject><subject>Magnetic recording</subject><subject>Magnetic tape</subject><subject>Magnetism</subject><subject>Mechanical cleaning</subject><subject>Media</subject><subject>Surface contamination</subject><subject>Transmission efficiency</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kMFKAzEQhoMoWKsPIF4WPO-aSTbJ5iIsRVuhRZF6DmkyKVvqbk22B9_eXVo8DT_z_TPwEXIPtACg-mm9qucFo6AKpqjUFVyQCegScjqkSzKhFKpcl7K8Jjcp7YZYCqAT8lxnC7Q-m-3Rtk27zT5i59AfI2ahi-Ouz-uUmtSjz1Z222LfuOwTXRf9gN-Sq2D3Ce_Oc0q-Xl_Ws0W-fJ-_zepl7rjQfe7BB7GRWgdvA6OSK1Cl3FgbgmYgvahUYIp7h8AqrdCJqgrIB9QJ7dmGT8nj6e4hdj9HTL3ZdcfYDi8NaCFLJjWIgYIT5WKXUsRgDrH5tvHXADWjJjNqMqMmc9Y0dB5OnQYR_3mlOSsV53_UKGJQ</recordid><startdate>20171101</startdate><enddate>20171101</enddate><creator>Aoyama, Jun</creator><creator>Furukawa, Masaru</creator><creator>Nishida, Shuji</creator><creator>Tasaka, Kenji</creator><creator>Matsuda, Kouji</creator><creator>Kuroki, Kenji</creator><creator>Ikeda, Masaomi</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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We have experimentally confirmed that write performances such as data track width and signal amplitude change as a function of elapsed write time due to accumulation of the write-induced head contamination. Unintended changes of write performances in a drive can lose the capability to perform magnetic recordings as requested by a host. Here, we introduce the head cleaning procedure which removes the contamination from the interfacing surface of the head by placing it in close proximity to a disk surface. Effectiveness of the cleaning operation for performance stabilization is demonstrated with integrated HAMR drives. Detrimental effects of the mechanical cleaning operation on both head and media reliabilities have not been observed.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TMAG.2017.2706981</doi><tpages>4</tpages><orcidid>https://orcid.org/0000-0003-2687-3160</orcidid></addata></record> |
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| issn | 0018-9464 1941-0069 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Cleaning Contamination Energy transmission Hard disk drive (HDD) head cleaning head contamination head-disk interface (HDI) Heat-assisted magnetic recording heat-assisted magnetic recording (HAMR) Magnetic heads Magnetic recording Magnetic tape Magnetism Mechanical cleaning Media Surface contamination Transmission efficiency |
| title | A Head Cleaning Procedure for Heat-Assisted Magnetic Recording |
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