JP5805276B2 - p型ガリウムナイトライド電流障壁層を有する垂直型トランジスタおよびその製造方法 - Google Patents
p型ガリウムナイトライド電流障壁層を有する垂直型トランジスタおよびその製造方法 Download PDFInfo
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- JP5805276B2 JP5805276B2 JP2014142115A JP2014142115A JP5805276B2 JP 5805276 B2 JP5805276 B2 JP 5805276B2 JP 2014142115 A JP2014142115 A JP 2014142115A JP 2014142115 A JP2014142115 A JP 2014142115A JP 5805276 B2 JP5805276 B2 JP 5805276B2
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- gallium nitride
- gan
- type gallium
- current barrier
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- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 title claims description 141
- 230000004888 barrier function Effects 0.000 title claims description 102
- 229910002601 GaN Inorganic materials 0.000 title claims description 55
- 238000004519 manufacturing process Methods 0.000 title description 17
- 229910052751 metal Inorganic materials 0.000 claims description 51
- 239000002184 metal Substances 0.000 claims description 51
- 239000000758 substrate Substances 0.000 claims description 25
- 239000004065 semiconductor Substances 0.000 claims description 15
- 230000005533 two-dimensional electron gas Effects 0.000 claims description 8
- 239000000969 carrier Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 description 24
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 19
- 238000000034 method Methods 0.000 description 15
- 229910052749 magnesium Inorganic materials 0.000 description 13
- 230000000903 blocking effect Effects 0.000 description 9
- 239000012535 impurity Substances 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 239000002019 doping agent Substances 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 229910012375 magnesium hydride Inorganic materials 0.000 description 6
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 5
- 239000007769 metal material Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001312 dry etching Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical group [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
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- Junction Field-Effect Transistors (AREA)
- Electrodes Of Semiconductors (AREA)
- Thin Film Transistor (AREA)
Description
Claims (6)
- 基板の第1領域上のドレイン電極と、
前記基板における、前記第1領域と離隔した第2領域上のドリフト層と、
前記ドリフト層の上部に配置されたp型ガリウムナイトライド(GaN)電流障壁層であって、それらの間に電流アパーチャを構成し、前記電流アパーチャが、垂直方向にキャリアが移動する経路を提供する、p型ガリウムナイトライド(GaN)電流障壁層と、
前記p型ガリウムナイトライド(GaN)電流障壁層およびドリフト層の上に配置され、その表面に隣接して2次元電子ガス層を有するチャネル層と、
前記チャネル層上に配置され、前記2次元電子ガス層の形成を引き起こす半導体層と、
前記チャネル層内に配置され、前記p型ガリウムナイトライド(GaN)電流障壁層とコンタクトする複数の金属コンタクトプラグと、
前記複数の金属コンタクトプラグおよび前記チャネル層上のソース電極と、
前記チャネル層の反対側である前記半導体層の上部面上に順に積層されたゲート絶縁層およびゲート電極とを含み、
前記複数の金属コンタクトプラグそれぞれの下部面は、前記p型ガリウムナイトライド(GaN)電流障壁層の上部面とコンタクトし、
前記複数の金属コンタクトプラグそれぞれの上部面は、前記ソース電極の下部面とコンタクトする、垂直型トランジスタ。 - 前記ドリフト層は、n型ガリウムナイトライド(GaN)層を含む、請求項1に記載の垂直型トランジスタ。
- 前記チャネル層は、ガリウムナイトライド(GaN)層を含み、前記半導体層は、アルミニウムガリウムナイトライド(AlGaN)層を含む、請求項1に記載の垂直型トランジスタ。
- 前記金属コンタクトプラグは、平面視で円形形状を有する、請求項1に記載の垂直型トランジスタ。
- 前記金属コンタクトプラグは、平面視で矩形形状を有する、請求項1に記載の垂直型トランジスタ。
- 隣接する前記金属コンタクトプラグ間の距離は、5μm以下である、請求項1に記載の垂直型トランジスタ。
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KR1020130081622A KR20150007546A (ko) | 2013-07-11 | 2013-07-11 | p형 갈륨나이트라이드 전류장벽층을 갖는 수직형 트랜지스터 및 그 제조방법 |
KR10-2013-0081622 | 2013-07-11 |
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CN105470294A (zh) * | 2015-12-08 | 2016-04-06 | 北京华进创威电子有限公司 | 一种垂直型氮化镓功率开关器件及其制备方法 |
US10147813B2 (en) * | 2016-03-04 | 2018-12-04 | United Silicon Carbide, Inc. | Tunneling field effect transistor |
WO2018076261A1 (zh) * | 2016-10-28 | 2018-05-03 | 华为技术有限公司 | 场效应晶体管及其制造方法 |
WO2018088063A1 (ja) * | 2016-11-11 | 2018-05-17 | 住友電気工業株式会社 | 炭化珪素半導体装置 |
JP7031238B2 (ja) * | 2017-11-09 | 2022-03-08 | 株式会社豊田中央研究所 | 窒化物半導体装置とその製造方法 |
JP6906427B2 (ja) * | 2017-11-09 | 2021-07-21 | 株式会社豊田中央研究所 | 窒化物半導体装置とその製造方法 |
WO2019181391A1 (ja) * | 2018-03-22 | 2019-09-26 | パナソニック株式会社 | 窒化物半導体装置 |
CN111129139B (zh) * | 2018-11-01 | 2021-03-30 | 西安电子科技大学 | 一种基于悬浮场板的自对准栅氮化镓增强型垂直功率器件 |
JP2021114496A (ja) * | 2020-01-16 | 2021-08-05 | 信一郎 高谷 | 縦型窒化物半導体トランジスタ装置 |
CN111584620A (zh) * | 2020-05-28 | 2020-08-25 | 西安电子科技大学芜湖研究院 | 一种降低p型mosfet源漏电极接触电阻的制备方法 |
CN114078965B (zh) * | 2020-08-11 | 2023-08-08 | 联华电子股份有限公司 | 高电子迁移率晶体管及其制作方法 |
US11978790B2 (en) | 2020-12-01 | 2024-05-07 | Texas Instruments Incorporated | Normally-on gallium nitride based transistor with p-type gate |
CN113030802B (zh) * | 2021-02-23 | 2023-05-16 | 南京邮电大学 | 一种基于类cavet晶体管结构的高灵敏度磁场传感器 |
CN113539822B (zh) * | 2021-09-16 | 2022-01-28 | 浙江大学杭州国际科创中心 | 一种垂直电流孔径晶体管制备方法 |
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WO2011024549A1 (ja) * | 2009-08-31 | 2011-03-03 | 日本電気株式会社 | 半導体装置および電界効果トランジスタ |
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