Thin-film inductive heads for perpendicular recording
A modified thin-film magnetic head for perpendicular recording in rigid disk drives with improved read/write characteristics, especially at high areal bit densities, is presented. The head on which the modified design is based is described. It combines the advantages of single-pole heads and thin-fi...
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| Veröffentlicht in: | IEEE transactions on magnetics 1990-11, Vol.26 (6), p.2966-2971 |
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| container_end_page | 2971 |
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| container_issue | 6 |
| container_start_page | 2966 |
| container_title | IEEE transactions on magnetics |
| container_volume | 26 |
| creator | Schewe, H. Stephani, D. |
| description | A modified thin-film magnetic head for perpendicular recording in rigid disk drives with improved read/write characteristics, especially at high areal bit densities, is presented. The head on which the modified design is based is described. It combines the advantages of single-pole heads and thin-film heads, writing with the sharp field edge of the leading pole and reading like a thin-film head. To increase the writing efficiency and improve the yield, the sequence of magnetic layers in the head is changed; the second layer of the four-layer head is embedded in the substrate, where it can be placed much closer to the pole tip of the first layer. The improved write capability depends mainly on the position of the embedded layer. In addition, there results an improved magnetic flux guidance from the embedded layer into the pole tip layer, providing the potential for a significant improvement in fabrication yield. The embedded-layer approach also allows a further increase in areal density. The results of read/write tests and the write-wide and read-narrow characteristics are presented.< > |
| doi_str_mv | 10.1109/20.102874 |
| format | Article |
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The head on which the modified design is based is described. It combines the advantages of single-pole heads and thin-film heads, writing with the sharp field edge of the leading pole and reading like a thin-film head. To increase the writing efficiency and improve the yield, the sequence of magnetic layers in the head is changed; the second layer of the four-layer head is embedded in the substrate, where it can be placed much closer to the pole tip of the first layer. The improved write capability depends mainly on the position of the embedded layer. In addition, there results an improved magnetic flux guidance from the embedded layer into the pole tip layer, providing the potential for a significant improvement in fabrication yield. The embedded-layer approach also allows a further increase in areal density. The results of read/write tests and the write-wide and read-narrow characteristics are presented.< ></description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/20.102874</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Disk drives ; Electronics ; Exact sciences and technology ; Fabrication ; Magnetic films ; Magnetic flux ; Magnetic heads ; Perpendicular magnetic recording ; Recording and replay of audio and video signals ; Storage and reproduction of information ; Substrates ; Testing ; Transistors ; Writing</subject><ispartof>IEEE transactions on magnetics, 1990-11, Vol.26 (6), p.2966-2971</ispartof><rights>1991 INIST-CNRS</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c373t-96876f0594b2e9d814228800a35dd888bd2e3d217cb1f50324f340ca240d71eb3</citedby><cites>FETCH-LOGICAL-c373t-96876f0594b2e9d814228800a35dd888bd2e3d217cb1f50324f340ca240d71eb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/102874$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,796,23930,23931,25140,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/102874$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19743446$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Schewe, H.</creatorcontrib><creatorcontrib>Stephani, D.</creatorcontrib><title>Thin-film inductive heads for perpendicular recording</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description>A modified thin-film magnetic head for perpendicular recording in rigid disk drives with improved read/write characteristics, especially at high areal bit densities, is presented. The head on which the modified design is based is described. It combines the advantages of single-pole heads and thin-film heads, writing with the sharp field edge of the leading pole and reading like a thin-film head. To increase the writing efficiency and improve the yield, the sequence of magnetic layers in the head is changed; the second layer of the four-layer head is embedded in the substrate, where it can be placed much closer to the pole tip of the first layer. The improved write capability depends mainly on the position of the embedded layer. In addition, there results an improved magnetic flux guidance from the embedded layer into the pole tip layer, providing the potential for a significant improvement in fabrication yield. The embedded-layer approach also allows a further increase in areal density. The results of read/write tests and the write-wide and read-narrow characteristics are presented.< ></description><subject>Applied sciences</subject><subject>Disk drives</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Fabrication</subject><subject>Magnetic films</subject><subject>Magnetic flux</subject><subject>Magnetic heads</subject><subject>Perpendicular magnetic recording</subject><subject>Recording and replay of audio and video signals</subject><subject>Storage and reproduction of information</subject><subject>Substrates</subject><subject>Testing</subject><subject>Transistors</subject><subject>Writing</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><recordid>eNpNkEtLxDAURoMoOD4Wbl11o-CievNomixl8AUDbsZ1SZMbJ9JpazIV_PfGmQFdHS6cexYfIRcUbikFfccygalaHJAZ1YKWAFIfkhkAVaUWUhyTk5Q-8ikqCjNSLVehL33o1kXo3WQ34QuLFRqXCj_EYsQ4Yu-CnToTi4h2iC7072fkyJsu4fmep-Tt8WE5fy4Xr08v8_tFaXnNN6WWqpYeKi1ahtopKhhTCsDwyjmlVOsYcsdobVvqK-BMeC7AGibA1RRbfkqud90xDp8Tpk2zDsli15kehyk1TEkmlBRZvNmJNg4pRfTNGMPaxO-GQvM7TMMyt8Nk92ofNcmazkfT25D-HnR2hJDZu9x5ARH_9baRHx_9aNs</recordid><startdate>19901101</startdate><enddate>19901101</enddate><creator>Schewe, H.</creator><creator>Stephani, D.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>19901101</creationdate><title>Thin-film inductive heads for perpendicular recording</title><author>Schewe, H. ; Stephani, D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c373t-96876f0594b2e9d814228800a35dd888bd2e3d217cb1f50324f340ca240d71eb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>Applied sciences</topic><topic>Disk drives</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Fabrication</topic><topic>Magnetic films</topic><topic>Magnetic flux</topic><topic>Magnetic heads</topic><topic>Perpendicular magnetic recording</topic><topic>Recording and replay of audio and video signals</topic><topic>Storage and reproduction of information</topic><topic>Substrates</topic><topic>Testing</topic><topic>Transistors</topic><topic>Writing</topic><toplevel>online_resources</toplevel><creatorcontrib>Schewe, H.</creatorcontrib><creatorcontrib>Stephani, D.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on magnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Schewe, H.</au><au>Stephani, D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thin-film inductive heads for perpendicular recording</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>1990-11-01</date><risdate>1990</risdate><volume>26</volume><issue>6</issue><spage>2966</spage><epage>2971</epage><pages>2966-2971</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>A modified thin-film magnetic head for perpendicular recording in rigid disk drives with improved read/write characteristics, especially at high areal bit densities, is presented. The head on which the modified design is based is described. It combines the advantages of single-pole heads and thin-film heads, writing with the sharp field edge of the leading pole and reading like a thin-film head. To increase the writing efficiency and improve the yield, the sequence of magnetic layers in the head is changed; the second layer of the four-layer head is embedded in the substrate, where it can be placed much closer to the pole tip of the first layer. The improved write capability depends mainly on the position of the embedded layer. In addition, there results an improved magnetic flux guidance from the embedded layer into the pole tip layer, providing the potential for a significant improvement in fabrication yield. The embedded-layer approach also allows a further increase in areal density. The results of read/write tests and the write-wide and read-narrow characteristics are presented.< ></abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/20.102874</doi><tpages>6</tpages></addata></record> |
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| ispartof | IEEE transactions on magnetics, 1990-11, Vol.26 (6), p.2966-2971 |
| issn | 0018-9464 1941-0069 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Disk drives Electronics Exact sciences and technology Fabrication Magnetic films Magnetic flux Magnetic heads Perpendicular magnetic recording Recording and replay of audio and video signals Storage and reproduction of information Substrates Testing Transistors Writing |
| title | Thin-film inductive heads for perpendicular recording |
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