Tapered bi-layer near field transducer for heat-assisted magnetic recording write heads

The present embodiments relate to a heat-assisted magnetic recording (HAMR) write head with a NFT bi-layer structure with a bottom taper, which can be applied to one or both layers of the two layers. A heat-assisted magnetic recording (HAMR) write head can include a main pole including a tip portion...

Full description

Saved in:
Bibliographic Details
Main Authors Xu, Weihao, Maletzky, Tobias
Format Patent
LanguageEnglish
Published 18.06.2024
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
Online AccessGet full text

Cover

Abstract The present embodiments relate to a heat-assisted magnetic recording (HAMR) write head with a NFT bi-layer structure with a bottom taper, which can be applied to one or both layers of the two layers. A heat-assisted magnetic recording (HAMR) write head can include a main pole including a tip portion configured to interact with a magnetic recording medium at an air-bearing surface (ABS). The HAMR write head can further include a near-field transducer (NFT) that includes a dielectric waveguide, a plasmon generator (PG) layer, and a second layer. The second layer can include a thermo-mechanically stable material disposed adjacent to the PG layer. Further, the PG layer and the second layer can form a taper angle relative to the ABS ranging between 30 and 60 degrees.
AbstractList The present embodiments relate to a heat-assisted magnetic recording (HAMR) write head with a NFT bi-layer structure with a bottom taper, which can be applied to one or both layers of the two layers. A heat-assisted magnetic recording (HAMR) write head can include a main pole including a tip portion configured to interact with a magnetic recording medium at an air-bearing surface (ABS). The HAMR write head can further include a near-field transducer (NFT) that includes a dielectric waveguide, a plasmon generator (PG) layer, and a second layer. The second layer can include a thermo-mechanically stable material disposed adjacent to the PG layer. Further, the PG layer and the second layer can form a taper angle relative to the ABS ranging between 30 and 60 degrees.
Author Maletzky, Tobias
Xu, Weihao
Author_xml – fullname: Xu, Weihao
– fullname: Maletzky, Tobias
BookMark eNqNi80KwjAQBnPQg3_vsD5AwWpFz4ri3YrHsiZfa6AmZTcivr0VfABPA8PM2AxCDBiZa8kdBI5uPmv5DaEAFqo9WkdJOKh72t7WUegOThmrek398OAmIHlLAhvF-dDQS3zCN3M6NcOaW8Xsx4mZHw_l_pShixW0Y4v-ri7nfLnIi816u8tX_zQfj_470A
ContentType Patent
DBID EVB
DatabaseName esp@cenet
DatabaseTitleList
Database_xml – sequence: 1
  dbid: EVB
  name: esp@cenet
  url: http://worldwide.espacenet.com/singleLineSearch?locale=en_EP
  sourceTypes: Open Access Repository
DeliveryMethod fulltext_linktorsrc
Discipline Medicine
Chemistry
Sciences
Physics
ExternalDocumentID US12014758B1
GroupedDBID EVB
ID FETCH-epo_espacenet_US12014758B13
IEDL.DBID EVB
IngestDate Fri Jul 19 10:38:42 EDT 2024
IsOpenAccess true
IsPeerReviewed false
IsScholarly false
Language English
LinkModel DirectLink
MergedId FETCHMERGED-epo_espacenet_US12014758B13
Notes Application Number: US202318106609
OpenAccessLink https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240618&DB=EPODOC&CC=US&NR=12014758B1
ParticipantIDs epo_espacenet_US12014758B1
PublicationCentury 2000
PublicationDate 20240618
PublicationDateYYYYMMDD 2024-06-18
PublicationDate_xml – month: 06
  year: 2024
  text: 20240618
  day: 18
PublicationDecade 2020
PublicationYear 2024
RelatedCompanies Headway Technologies, Inc
RelatedCompanies_xml – name: Headway Technologies, Inc
Score 3.5456314
Snippet The present embodiments relate to a heat-assisted magnetic recording (HAMR) write head with a NFT bi-layer structure with a bottom taper, which can be applied...
SourceID epo
SourceType Open Access Repository
SubjectTerms INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
Title Tapered bi-layer near field transducer for heat-assisted magnetic recording write heads
URI https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240618&DB=EPODOC&locale=&CC=US&NR=12014758B1
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
link http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV3dS8MwED_G_HzTquj8IIL0Leho6-pDEdauDGEfuFb3NtI0HRPtylrZv-9d3Jwv-noJobn08vtdcncBuEEbyjLkDVwJ1-a2dCyeYF_uZsKxEonm5VDucK9_343tp7EzrsHbOhdG1wld6uKIaFES7b3S-3WxOcQKdGxleZvMUDR_DCMvMFfesYYn1wzaXmc4CAa-6ftePDL7z14Tgc5GbtxGT2mLaDTV2e-8tCkrpfgNKeEBbA9xtLw6hJrKDdjz1y-vGbDbW114G7CjIzRlicKVFZZH8BqJgp7YZMmMvwvkzCzH_5XpYDRWEfikuGAomC8Y7bUcCTKtZso-xDSnrEX2fTaDsMWWCySd1C0tj-E67ER-l-O3Tn4UM4lHm2lZJ1DP57k6BfYgBToVtlRUCCZ1hMikbKVKqpa4k9JSZ9D4e5zGf43nsE9KplCppnsB9WrxqS4RlKvkSmvzC8jak3c
link.rule.ids 230,309,786,891,25594,76906
linkProvider European Patent Office
linkToHtml http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV3dT8IwEL8Q_MA3RQ3iV03M3hol22Q-LCZsEFS-IkN5I13XGYyOhc3w73tXQXzR12vTrNddf79r764Al2hDcYy8gSvhWNyStslD7MudWNhmKNG8bMod7vZu2iPrYWyPC_C2yoXRdUIXujgiWpREe8_1fp2uD7F8HVuZXYVTFM3uWoHrG0vvWMOTY_gNtzno-33P8Dx3NDR6T24Ngc5CbtxAT2mjTtV5iTo9NygrJf0NKa1d2BzgaEm-BwWVlKHkrV5eK8N2d3nhXYYtHaEpMxQurTDbh5dApPTEJgun_F0gZ2YJ_q9MB6OxnMAnwgVDwWzOaK_lSJBpNSP2IV4Tylpk32czCFtsMUfSSd2i7AAuWs3Aa3P81smPYiaj4Xpa5iEUk1miKsBupUCnwpKKCsFEthCxlPVISVUX11Ka6giqf49T_a_xHErtoNuZdO57j8ewQwqnsKmacwLFfP6pThGg8_BMa_YL14KWZA
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Apatent&rft.title=Tapered+bi-layer+near+field+transducer+for+heat-assisted+magnetic+recording+write+heads&rft.inventor=Xu%2C+Weihao&rft.inventor=Maletzky%2C+Tobias&rft.date=2024-06-18&rft.externalDBID=B1&rft.externalDocID=US12014758B1