A new high density magnetoresistive tape head

An 8-track magnetic tape head for high-frequency, high-density applications is described. It includes an unshielded magnetoresistive read head and two thin-film record heads for bidirectional operation with write verification. The MR sensors are biased by specially shaped thin-film permanent magnets...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on magnetics 1990-11, Vol.26 (6), p.3004-3009
Main Authors: Edelman, H., Brock, G.W., Carr, T., Freeman, J., Smith, N.
Format: Article
Language:English
Subjects:
Applied sciences
Assembly
Electronics
Exact sciences and technology
Magnetic heads
Magnetic sensors
Magnetoresistance
Noise shaping
Permanent magnets
Pulse shaping methods
Recording and replay of audio and video signals
Shape
Storage and reproduction of information
Thin film sensors
Transistors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c307t-e8c3082fb0ab8480c99971a4a42a2d531c72cbb269e9af8685a5659479e95a7c3
cites cdi_FETCH-LOGICAL-c307t-e8c3082fb0ab8480c99971a4a42a2d531c72cbb269e9af8685a5659479e95a7c3
container_end_page 3009
container_issue 6
container_start_page 3004
container_title IEEE transactions on magnetics
container_volume 26
creator Edelman, H.
Brock, G.W.
Carr, T.
Freeman, J.
Smith, N.
description An 8-track magnetic tape head for high-frequency, high-density applications is described. It includes an unshielded magnetoresistive read head and two thin-film record heads for bidirectional operation with write verification. The MR sensors are biased by specially shaped thin-film permanent magnets (PM) that provide fields along both sensor axes to linearize output and eliminate Barkhausen noise. Nearly all films in the head are deposited using dry processes. Deposition conditions for the PM have been optimized to produce a high-coercivity, high-remanence isotropic film. The final head assembly has a contour that utilizes longitudinal slots to achieve intimate contact with low head-to-tape pressure. The associated data channel uses both read and write equalization to obtain the desired output pulse shape from the unshielded head.< >
doi_str_mv 10.1109/20.102881
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1109_20_102881</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><ieee_id>102881</ieee_id><sourcerecordid>28482755</sourcerecordid><originalsourceid>FETCH-LOGICAL-c307t-e8c3082fb0ab8480c99971a4a42a2d531c72cbb269e9af8685a5659479e95a7c3</originalsourceid><addsrcrecordid>eNpNkL1PwzAQRy0EEqUwsDJlAYkhYDt2bI9VxZdUiQXm6OJeWqM0Kb4U1P8e01aC6eknvXvDMXYp-J0Q3N3LRC6tFUdsJJwSOeelO2YjzoXNnSrVKTsj-khTacFHLJ9kHX5ny7BYZnPsKAzbbAWLDoc-IgUawhdmA6wxWyLMz9lJAy3hxYFj9v748DZ9zmevTy_TySz3BTdDjjbRyqbmUFtluXfOGQEKlAQ514XwRvq6lqVDB40trQZdaqdM2hqML8bsZt9dx_5zgzRUq0Ae2xY67DdUyVSVRusk3u5FH3uiiE21jmEFcVsJXv0-pJKJu4ck9_oQBfLQNhE6H-jvwBlVqFIm72rvBUT819tFfgAwImXv</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>28482755</pqid></control><display><type>article</type><title>A new high density magnetoresistive tape head</title><source>IEEE Electronic Library (IEL) Journals</source><creator>Edelman, H. ; Brock, G.W. ; Carr, T. ; Freeman, J. ; Smith, N.</creator><creatorcontrib>Edelman, H. ; Brock, G.W. ; Carr, T. ; Freeman, J. ; Smith, N.</creatorcontrib><description>An 8-track magnetic tape head for high-frequency, high-density applications is described. It includes an unshielded magnetoresistive read head and two thin-film record heads for bidirectional operation with write verification. The MR sensors are biased by specially shaped thin-film permanent magnets (PM) that provide fields along both sensor axes to linearize output and eliminate Barkhausen noise. Nearly all films in the head are deposited using dry processes. Deposition conditions for the PM have been optimized to produce a high-coercivity, high-remanence isotropic film. The final head assembly has a contour that utilizes longitudinal slots to achieve intimate contact with low head-to-tape pressure. The associated data channel uses both read and write equalization to obtain the desired output pulse shape from the unshielded head.&lt; &gt;</description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/20.102881</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Assembly ; Electronics ; Exact sciences and technology ; Magnetic heads ; Magnetic sensors ; Magnetoresistance ; Noise shaping ; Permanent magnets ; Pulse shaping methods ; Recording and replay of audio and video signals ; Shape ; Storage and reproduction of information ; Thin film sensors ; Transistors</subject><ispartof>IEEE transactions on magnetics, 1990-11, Vol.26 (6), p.3004-3009</ispartof><rights>1991 INIST-CNRS</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c307t-e8c3082fb0ab8480c99971a4a42a2d531c72cbb269e9af8685a5659479e95a7c3</citedby><cites>FETCH-LOGICAL-c307t-e8c3082fb0ab8480c99971a4a42a2d531c72cbb269e9af8685a5659479e95a7c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/102881$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,23930,23931,25140,27924,27925,54796</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=19743462$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Edelman, H.</creatorcontrib><creatorcontrib>Brock, G.W.</creatorcontrib><creatorcontrib>Carr, T.</creatorcontrib><creatorcontrib>Freeman, J.</creatorcontrib><creatorcontrib>Smith, N.</creatorcontrib><title>A new high density magnetoresistive tape head</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description>An 8-track magnetic tape head for high-frequency, high-density applications is described. It includes an unshielded magnetoresistive read head and two thin-film record heads for bidirectional operation with write verification. The MR sensors are biased by specially shaped thin-film permanent magnets (PM) that provide fields along both sensor axes to linearize output and eliminate Barkhausen noise. Nearly all films in the head are deposited using dry processes. Deposition conditions for the PM have been optimized to produce a high-coercivity, high-remanence isotropic film. The final head assembly has a contour that utilizes longitudinal slots to achieve intimate contact with low head-to-tape pressure. The associated data channel uses both read and write equalization to obtain the desired output pulse shape from the unshielded head.&lt; &gt;</description><subject>Applied sciences</subject><subject>Assembly</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Magnetic heads</subject><subject>Magnetic sensors</subject><subject>Magnetoresistance</subject><subject>Noise shaping</subject><subject>Permanent magnets</subject><subject>Pulse shaping methods</subject><subject>Recording and replay of audio and video signals</subject><subject>Shape</subject><subject>Storage and reproduction of information</subject><subject>Thin film sensors</subject><subject>Transistors</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><recordid>eNpNkL1PwzAQRy0EEqUwsDJlAYkhYDt2bI9VxZdUiQXm6OJeWqM0Kb4U1P8e01aC6eknvXvDMXYp-J0Q3N3LRC6tFUdsJJwSOeelO2YjzoXNnSrVKTsj-khTacFHLJ9kHX5ny7BYZnPsKAzbbAWLDoc-IgUawhdmA6wxWyLMz9lJAy3hxYFj9v748DZ9zmevTy_TySz3BTdDjjbRyqbmUFtluXfOGQEKlAQ514XwRvq6lqVDB40trQZdaqdM2hqML8bsZt9dx_5zgzRUq0Ae2xY67DdUyVSVRusk3u5FH3uiiE21jmEFcVsJXv0-pJKJu4ck9_oQBfLQNhE6H-jvwBlVqFIm72rvBUT819tFfgAwImXv</recordid><startdate>19901101</startdate><enddate>19901101</enddate><creator>Edelman, H.</creator><creator>Brock, G.W.</creator><creator>Carr, T.</creator><creator>Freeman, J.</creator><creator>Smith, N.</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>A new high density magnetoresistive tape head</title><author>Edelman, H. ; Brock, G.W. ; Carr, T. ; Freeman, J. ; Smith, N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c307t-e8c3082fb0ab8480c99971a4a42a2d531c72cbb269e9af8685a5659479e95a7c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>Applied sciences</topic><topic>Assembly</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Magnetic heads</topic><topic>Magnetic sensors</topic><topic>Magnetoresistance</topic><topic>Noise shaping</topic><topic>Permanent magnets</topic><topic>Pulse shaping methods</topic><topic>Recording and replay of audio and video signals</topic><topic>Shape</topic><topic>Storage and reproduction of information</topic><topic>Thin film sensors</topic><topic>Transistors</topic><toplevel>online_resources</toplevel><creatorcontrib>Edelman, H.</creatorcontrib><creatorcontrib>Brock, G.W.</creatorcontrib><creatorcontrib>Carr, T.</creatorcontrib><creatorcontrib>Freeman, J.</creatorcontrib><creatorcontrib>Smith, N.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics &amp; 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</fulltext></delivery><addata><au>Edelman, H.</au><au>Brock, G.W.</au><au>Carr, T.</au><au>Freeman, J.</au><au>Smith, N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A new high density magnetoresistive tape head</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>3004</spage><epage>3009</epage><pages>3004-3009</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>An 8-track magnetic tape head for high-frequency, high-density applications is described. It includes an unshielded magnetoresistive read head and two thin-film record heads for bidirectional operation with write verification. The MR sensors are biased by specially shaped thin-film permanent magnets (PM) that provide fields along both sensor axes to linearize output and eliminate Barkhausen noise. Nearly all films in the head are deposited using dry processes. Deposition conditions for the PM have been optimized to produce a high-coercivity, high-remanence isotropic film. The final head assembly has a contour that utilizes longitudinal slots to achieve intimate contact with low head-to-tape pressure. The associated data channel uses both read and write equalization to obtain the desired output pulse shape from the unshielded head.&lt; &gt;</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/20.102881</doi><tpages>6</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0018-9464
ispartof IEEE transactions on magnetics, 1990-11, Vol.26 (6), p.3004-3009
issn 0018-9464
1941-0069
language eng
recordid cdi_crossref_primary_10_1109_20_102881
source IEEE Electronic Library (IEL) Journals
subjects Applied sciences
Assembly
Electronics
Exact sciences and technology
Magnetic heads
Magnetic sensors
Magnetoresistance
Noise shaping
Permanent magnets
Pulse shaping methods
Recording and replay of audio and video signals
Shape
Storage and reproduction of information
Thin film sensors
Transistors
title A new high density magnetoresistive tape head
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-30T20%3A20%3A10IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20new%20high%20density%20magnetoresistive%20tape%20head&rft.jtitle=IEEE%20transactions%20on%20magnetics&rft.au=Edelman,%20H.&rft.date=1990-11-01&rft.volume=26&rft.issue=6&rft.spage=3004&rft.epage=3009&rft.pages=3004-3009&rft.issn=0018-9464&rft.eissn=1941-0069&rft.coden=IEMGAQ&rft_id=info:doi/10.1109/20.102881&rft_dat=%3Cproquest_cross%3E28482755%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c307t-e8c3082fb0ab8480c99971a4a42a2d531c72cbb269e9af8685a5659479e95a7c3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=28482755&rft_id=info:pmid/&rft_ieee_id=102881&rfr_iscdi=true