MANUFACTURE OF FERRITE SUBSTRATE THIN FILM MAGNETIC HEAD

MANUFACTURE OF FERRITE SUBSTRATE THIN FILM MAGNETIC HEAD

PURPOSE:To form a ferrite substrate thin film magnetic head accurately and with higher mass productivity. CONSTITUTION:After the application of an etching mask, a chemical etching is performed using an aqueous solution of phosphoric acid or the like to form an air bearing part 17. A protective film...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: TERADA NOBUHIRO
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator TERADA NOBUHIRO
description PURPOSE:To form a ferrite substrate thin film magnetic head accurately and with higher mass productivity. CONSTITUTION:After the application of an etching mask, a chemical etching is performed using an aqueous solution of phosphoric acid or the like to form an air bearing part 17. A protective film 13 is left without etching. Then, the height of the protective film 13 other than the air bearing part 17 is made lower than the surface of the air bearing by mechanical working using a grind stone or the like. This makes possible the checking of possible chipping or the like during the sliding of a disc thereby achieving higher reliability of a magnetic disc. The height of the protective film 13 may also be lowered by an etching using the etching mask used in the formation of the air bearing part 17 as mask again.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JPH07182623A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JPH07182623A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JPH07182623A3</originalsourceid><addsrcrecordid>eNrjZLDwdfQLdXN0DgkNclXwd1Nwcw0K8gxxVQgOdQoOCXIEskI8PP0U3Dx9fBV8Hd39XEM8nRU8XB1deBhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvFeAh4G5oYWRmZGxozExagBhmyiO</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>MANUFACTURE OF FERRITE SUBSTRATE THIN FILM MAGNETIC HEAD</title><source>esp@cenet</source><creator>TERADA NOBUHIRO</creator><creatorcontrib>TERADA NOBUHIRO</creatorcontrib><description>PURPOSE:To form a ferrite substrate thin film magnetic head accurately and with higher mass productivity. CONSTITUTION:After the application of an etching mask, a chemical etching is performed using an aqueous solution of phosphoric acid or the like to form an air bearing part 17. A protective film 13 is left without etching. Then, the height of the protective film 13 other than the air bearing part 17 is made lower than the surface of the air bearing by mechanical working using a grind stone or the like. This makes possible the checking of possible chipping or the like during the sliding of a disc thereby achieving higher reliability of a magnetic disc. The height of the protective film 13 may also be lowered by an etching using the etching mask used in the formation of the air bearing part 17 as mask again.</description><edition>6</edition><language>eng</language><subject>INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>1995</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19950721&amp;DB=EPODOC&amp;CC=JP&amp;NR=H07182623A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19950721&amp;DB=EPODOC&amp;CC=JP&amp;NR=H07182623A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TERADA NOBUHIRO</creatorcontrib><title>MANUFACTURE OF FERRITE SUBSTRATE THIN FILM MAGNETIC HEAD</title><description>PURPOSE:To form a ferrite substrate thin film magnetic head accurately and with higher mass productivity. CONSTITUTION:After the application of an etching mask, a chemical etching is performed using an aqueous solution of phosphoric acid or the like to form an air bearing part 17. A protective film 13 is left without etching. Then, the height of the protective film 13 other than the air bearing part 17 is made lower than the surface of the air bearing by mechanical working using a grind stone or the like. This makes possible the checking of possible chipping or the like during the sliding of a disc thereby achieving higher reliability of a magnetic disc. The height of the protective film 13 may also be lowered by an etching using the etching mask used in the formation of the air bearing part 17 as mask again.</description><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1995</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDwdfQLdXN0DgkNclXwd1Nwcw0K8gxxVQgOdQoOCXIEskI8PP0U3Dx9fBV8Hd39XEM8nRU8XB1deBhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvFeAh4G5oYWRmZGxozExagBhmyiO</recordid><startdate>19950721</startdate><enddate>19950721</enddate><creator>TERADA NOBUHIRO</creator><scope>EVB</scope></search><sort><creationdate>19950721</creationdate><title>MANUFACTURE OF FERRITE SUBSTRATE THIN FILM MAGNETIC HEAD</title><author>TERADA NOBUHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH07182623A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1995</creationdate><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>TERADA NOBUHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TERADA NOBUHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MANUFACTURE OF FERRITE SUBSTRATE THIN FILM MAGNETIC HEAD</title><date>1995-07-21</date><risdate>1995</risdate><abstract>PURPOSE:To form a ferrite substrate thin film magnetic head accurately and with higher mass productivity. CONSTITUTION:After the application of an etching mask, a chemical etching is performed using an aqueous solution of phosphoric acid or the like to form an air bearing part 17. A protective film 13 is left without etching. Then, the height of the protective film 13 other than the air bearing part 17 is made lower than the surface of the air bearing by mechanical working using a grind stone or the like. This makes possible the checking of possible chipping or the like during the sliding of a disc thereby achieving higher reliability of a magnetic disc. The height of the protective film 13 may also be lowered by an etching using the etching mask used in the formation of the air bearing part 17 as mask again.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_JPH07182623A
source esp@cenet
subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title MANUFACTURE OF FERRITE SUBSTRATE THIN FILM MAGNETIC HEAD
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-20T11%3A43%3A28IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=TERADA%20NOBUHIRO&rft.date=1995-07-21&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJPH07182623A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true