GALLIUM NITRIDE SUBSTRATE, AND METHOD FOR PRODUCING NITRIDE SEMICONDUCTOR CRYSTAL

The main purpose of the present invention is to provide: a nonpolar or semipolar GaN substrate, in which a nitride semiconductor crystal having a low stacking fault density can be epitaxially grown on the main surface of the substrate; and a technique required for the production of the substrate. A...

Full description

Saved in:
Bibliographic Details
Main Authors FUJISAWA, HIDEO, IKEDA, HIROTAKA, TSUKADA, YUSUKE, MIKAWA, YUTAKA, KAMADA, KAZUNORI, KUBO, SHUICHI, OHATA, TATSUHIRO, MATSUMOTO, HAJIME
Format Patent
LanguageEnglish
French
Japanese
Published 26.06.2014
Subjects
Online AccessGet full text

Cover

Loading…
Abstract The main purpose of the present invention is to provide: a nonpolar or semipolar GaN substrate, in which a nitride semiconductor crystal having a low stacking fault density can be epitaxially grown on the main surface of the substrate; and a technique required for the production of the substrate. A gallium nitride substrate having a first main surface and a second main surface that is located on the opposed side of the first main surface, wherein the first main surface is a nonpolar surface or a semipolar surface, and the average basal-plane dislocation density in arbitrary 250-μm square regions in the first main surface is 1 × 106 cm-2 or less. Le principal objectif de la présente invention concerne l'obtention d'un substrat de GaN non polaire ou semi-polaire, dans lequel un cristal semi-conducteur de nitrure ayant une faible densité de défaut d'empilement peut être formé par croissance épitaxiale sur la surface principale du substrat ; ainsi qu'une technique requise pour la production dudit substrat. À cet effet, l'invention propose un substrat de nitrure de gallium qui comprend une première surface principale et une seconde surface principale qui est située sur le côté opposé de la première surface principale, la première surface principale étant une surface non polaire ou une surface semi-polaire, et la densité de dislocations dans le plan basal moyenne dans des régions de forme carrée de 250 μm arbitraires dans la première surface principale est de 1 × 106 cm-2 ou moins.
AbstractList The main purpose of the present invention is to provide: a nonpolar or semipolar GaN substrate, in which a nitride semiconductor crystal having a low stacking fault density can be epitaxially grown on the main surface of the substrate; and a technique required for the production of the substrate. A gallium nitride substrate having a first main surface and a second main surface that is located on the opposed side of the first main surface, wherein the first main surface is a nonpolar surface or a semipolar surface, and the average basal-plane dislocation density in arbitrary 250-μm square regions in the first main surface is 1 × 106 cm-2 or less. Le principal objectif de la présente invention concerne l'obtention d'un substrat de GaN non polaire ou semi-polaire, dans lequel un cristal semi-conducteur de nitrure ayant une faible densité de défaut d'empilement peut être formé par croissance épitaxiale sur la surface principale du substrat ; ainsi qu'une technique requise pour la production dudit substrat. À cet effet, l'invention propose un substrat de nitrure de gallium qui comprend une première surface principale et une seconde surface principale qui est située sur le côté opposé de la première surface principale, la première surface principale étant une surface non polaire ou une surface semi-polaire, et la densité de dislocations dans le plan basal moyenne dans des régions de forme carrée de 250 μm arbitraires dans la première surface principale est de 1 × 106 cm-2 ou moins.
Author IKEDA, HIROTAKA
MATSUMOTO, HAJIME
TSUKADA, YUSUKE
OHATA, TATSUHIRO
KUBO, SHUICHI
FUJISAWA, HIDEO
KAMADA, KAZUNORI
MIKAWA, YUTAKA
Author_xml – fullname: FUJISAWA, HIDEO
– fullname: IKEDA, HIROTAKA
– fullname: TSUKADA, YUSUKE
– fullname: MIKAWA, YUTAKA
– fullname: KAMADA, KAZUNORI
– fullname: KUBO, SHUICHI
– fullname: OHATA, TATSUHIRO
– fullname: MATSUMOTO, HAJIME
BookMark eNrjYmDJy89L5WQIdHf08fEM9VXw8wwJ8nRxVQgOdQoOCXIMcdVRcPRzUfB1DfHwd1Fw8w9SCAjydwl19vRzR6h19fV09vcDioYA5Z2DIoNDHH14GFjTEnOKU3mhNDeDsptriLOHbmpBfnxqcUFicmpeakl8uL-RgaGJgaW5pbGho6ExcaoAsdcyRw
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
DocumentTitleAlternate SUBSTRAT DE NITRURE DE GALLIUM, ET PROCÉDÉ DE PRODUCTION DE CRISTAL SEMI-CONDUCTEUR DE NITRURE
ExternalDocumentID WO2014097931A1
GroupedDBID EVB
ID FETCH-epo_espacenet_WO2014097931A13
IEDL.DBID EVB
IngestDate Fri Jul 19 14:38:03 EDT 2024
IsOpenAccess true
IsPeerReviewed false
IsScholarly false
Language English
French
Japanese
LinkModel DirectLink
MergedId FETCHMERGED-epo_espacenet_WO2014097931A13
Notes Application Number: WO2013JP83110
OpenAccessLink https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140626&DB=EPODOC&CC=WO&NR=2014097931A1
ParticipantIDs epo_espacenet_WO2014097931A1
PublicationCentury 2000
PublicationDate 20140626
PublicationDateYYYYMMDD 2014-06-26
PublicationDate_xml – month: 06
  year: 2014
  text: 20140626
  day: 26
PublicationDecade 2010
PublicationYear 2014
RelatedCompanies MITSUBISHI CHEMICAL CORPORATION
RelatedCompanies_xml – name: MITSUBISHI CHEMICAL CORPORATION
Score 3.0542936
Snippet The main purpose of the present invention is to provide: a nonpolar or semipolar GaN substrate, in which a nitride semiconductor crystal having a low stacking...
SourceID epo
SourceType Open Access Repository
SubjectTerms AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE
APPARATUS THEREFOR
BASIC ELECTRIC ELEMENTS
CHEMISTRY
CRYSTAL GROWTH
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
METALLURGY
PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE
REFINING BY ZONE-MELTING OF MATERIAL
SEMICONDUCTOR DEVICES
SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE
SINGLE-CRYSTAL-GROWTH
UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
Title GALLIUM NITRIDE SUBSTRATE, AND METHOD FOR PRODUCING NITRIDE SEMICONDUCTOR CRYSTAL
URI https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140626&DB=EPODOC&locale=&CC=WO&NR=2014097931A1
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
link http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV3dT8IwEL8QNOqbokYUTRPNnlx00EH2QMxox4dxG45N8YmspSQaA0Rm_Pe9ThCeeOv1mqa99Hr3a-9agBtbjnXclDTRmkkEKEKZKaXUVNRKFb2XEyl0NrIf1LsJfRzawwJ8rnJh8ndCf_LHEVGjJOp7lu_X8_UhFs9jKxd34h2rZg_tuMmNJTpGtIAOusFbTa8f8pAZjCFuM4Loj-fgYrRcxEo76Eg3dACY99LSeSnzTaPSPoTdPvY3zY6g8JGWYJ-t_l4rwZ6_vPLG4lL7Fsfw3HEReic-CXpx1OMeGSQt_edx7N0SN-DE9-JuyAniOtKPQp6wXtBZt9UCDwOsjZHPordB7D6dwHXbi1nXxLGN_kUxeg03J1I7heJ0NlVnQOSk4Yh0osZVh6IHZIuaU3ME0uO6bamqVYbKtp7Ot7Mv4ECTOkSqWq9AMfv6VpdojDNxlcvwF7-ohyo
link.rule.ids 230,309,783,888,25578,76884
linkProvider European Patent Office
linkToHtml http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV3dT8IwEL8QNOKbosYP1CaaPbnoYEP3QMxYB5uyDkcn-ES2URKNASIz_vteJwhPvLW9pmkvvd792rsrwLWRjqTfVKqiNksRoCRCjXVdV4WuxUK_S8dpIqORfVZ3I_1pYAwK8LmMhcnzhP7kyRFRolKU9yw_r2erSyya-1bOb5N3bJo-tniDKgt0jGgBDXSFNhtON6CBrdg24jaFhX80EzejZiFW2kIj-0Fm2ndemzIuZbauVFp7sN3F8SbZPhQ-4jKU7OXfa2XY8RdP3lhcSN_8AF7aFkLvyCfM46FHHdKLmvLPY-7cEItR4jvcDShBXEe6YUAj22PtVV_J8IBhK0e6Hb71uNU5hKuWw21XxbkN_1kx7AfrC6kdQXEynYhjIOn43kzisRhVTR0tICOpmTUzwfqobmiiqp1AZdNIp5vJl1Byud8Zdjz2fAa7kiTdpar1ChSzr29xjoo5Sy5yfv4CPruKGg
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=GALLIUM+NITRIDE+SUBSTRATE%2C+AND+METHOD+FOR+PRODUCING+NITRIDE+SEMICONDUCTOR+CRYSTAL&rft.inventor=FUJISAWA%2C+HIDEO&rft.inventor=IKEDA%2C+HIROTAKA&rft.inventor=TSUKADA%2C+YUSUKE&rft.inventor=MIKAWA%2C+YUTAKA&rft.inventor=KAMADA%2C+KAZUNORI&rft.inventor=KUBO%2C+SHUICHI&rft.inventor=OHATA%2C+TATSUHIRO&rft.inventor=MATSUMOTO%2C+HAJIME&rft.date=2014-06-26&rft.externalDBID=A1&rft.externalDocID=WO2014097931A1