KR101124017B1 - 반도체 소자 및 그 제조 방법 - Google Patents
반도체 소자 및 그 제조 방법 Download PDFInfo
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- KR101124017B1 KR101124017B1 KR1020100027391A KR20100027391A KR101124017B1 KR 101124017 B1 KR101124017 B1 KR 101124017B1 KR 1020100027391 A KR1020100027391 A KR 1020100027391A KR 20100027391 A KR20100027391 A KR 20100027391A KR 101124017 B1 KR101124017 B1 KR 101124017B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims description 45
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000000758 substrate Substances 0.000 claims abstract description 36
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 229910052732 germanium Inorganic materials 0.000 claims description 6
- 229910052718 tin Inorganic materials 0.000 claims description 6
- 230000005533 two-dimensional electron gas Effects 0.000 claims description 6
- 230000004308 accommodation Effects 0.000 claims description 3
- 229910002601 GaN Inorganic materials 0.000 description 29
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 27
- 239000010408 film Substances 0.000 description 23
- 229920002120 photoresistant polymer Polymers 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 150000004767 nitrides Chemical class 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000005669 field effect Effects 0.000 description 4
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- 238000010438 heat treatment Methods 0.000 description 4
- 229910052738 indium Inorganic materials 0.000 description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 125000002524 organometallic group Chemical group 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000012808 vapor phase Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- AUCDRFABNLOFRE-UHFFFAOYSA-N alumane;indium Chemical compound [AlH3].[In] AUCDRFABNLOFRE-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 239000010980 sapphire Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
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- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
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- 238000007792 addition Methods 0.000 description 1
- AJGDITRVXRPLBY-UHFFFAOYSA-N aluminum indium Chemical compound [Al].[In] AJGDITRVXRPLBY-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- FFEARJCKVFRZRR-UHFFFAOYSA-N methionine Chemical group CSCCC(N)C(O)=O FFEARJCKVFRZRR-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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Abstract
Description
도 2는 도 1의 A-A'선을 따라 절단한 단면도이다.
도 3 내지 도 6은 본 발명의 실시예에 따른 반도체 소자의 제조 과정을 설명하기 위한 도면들이다.
Claims (20)
- 베이스 기판;
상기 베이스 기판 상에 형성되며, 수용홈을 구비한 메사 돌기를 갖는 반도체층;
상기 반도체층 상에 서로 이격되어 배치되며, 소스 렉을 갖는 소스 전극 및 드레인 렉을 갖는 드레인 전극; 및
상기 소스 전극 및 상기 드레인 전극과 절연되며, 상기 수용홈 내부에 수용되는 리세스부를 구비한 게이트 전극을 포함하며,
상기 메사 돌기는 상기 메사 돌기와 상기 소스 전극 및 상기 드레인 전극과의 계면에 각각 적어도 하나의 트렌치를 구비한 초격자 구조를 포함하며, 상기 소스 렉 및 상기 드레인 렉은 상기 트렌치에 수용되는 반도체 소자.
- 제1항에 있어서,
상기 초격자 구조의 최하부층은 상기 트렌치의 바닥면과 동일한 위치이거나 상기 바닥면 보다 상부에 위치하는 것을 특징으로 하는 반도체 소자.
- 제1항에 있어서,
상기 초격자 구조는 고농도 도핑층인 것을 특징으로 하는 반도체 소자.
- 제3항에 있어서,
상기 초격자 구조는 두께 방향으로 배열된 다층의 2차원 전자 가스층을 포함하는 것을 특징으로 하는 반도체 소자.
- 제3항에 있어서,
상기 초격자 구조는 두께 방향으로 배열된 다층의 델타 도핑층을 포함하는 것을 특징으로 하는 반도체 소자.
- 제5항에 있어서,
상기 델타 도핑층은 Si, Ge 및 Sn 중에서 선택되는 적어도 어느 하나가 도핑되어 형성된 것을 특징으로 하는 반도체 소자.
- 제1항에 있어서,
상기 반도체층과 상기 게이트 전극 사이에 개재된 산화막을 더 포함하는 것을 특징으로 하는 반도체 소자.
- 제7항에 있어서,
상기 산화막은 상기 리세스부의 형상과 대응하는 것을 특징으로 하는 반도체 소자.
- 제7항에 있어서,
상기 초격자 구조의 최하부층은 상기 산화막의 바닥면과 동일한 위치이거나 상기 바닥면 보다 상부에 위치하는 것을 특징으로 하는 반도체 소자.
- 제1항에 있어서,
상기 베이스 기판과 상기 반도체층 사이에 버퍼층을 더 구비한 것을 특징으로 하는 반도체 소자.
- 베이스 기판을 준비하는 단계;
상기 베이스 기판 상에 수용홈을 구비한 메사 돌기를 갖는 반도체층을 형성하는 단계;
상기 반도체층 상에 서로 이격되어 배치되도록 소스 렉을 갖는 소스 전극 및 드레인 렉을 갖는 드레인 전극을 형성하는 단계; 및
상기 반도체층 상에 상기 소스 전극 및 상기 드레인 전극과 절연되며, 상기 수용홈 내부에 수용되는 리세스부를 구비한 게이트 전극을 형성하는 단계
를 포함하며,
상기 메사 돌기는 상기 메사 돌기와 상기 소스 전극 및 상기 드레인 전극과의 계면에 각각 적어도 하나의 트렌치를 구비한 초격자 구조를 포함하며, 상기 소스 렉 및 상기 드레인 렉은 상기 트렌치에 수용되도록 형성되는 반도체 소자의 제조 방법.
- 제11항에 있어서,
상기 초격자 구조는 상기 초격자 구조의 최하부층이 상기 트렌치의 바닥면과 동일한 위치를 갖거나 상기 바닥면 보다 상부에 위치하도록 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제11항에 있어서,
상기 초격자 구조는 고농도 도핑층으로 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제13항에 있어서,
상기 초격자 구조는 두께 방향으로 다층의 2차원 전자 가스층을 포함하도록 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제13항에 있어서,
상기 초격자 구조는 두께 방향으로 다층의 델타 도핑층을 포함하도록 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제15항에 있어서,
상기 델타 도핑층은 Si, Ge 및 Sn 중에서 선택되는 적어도 어느 하나가 도핑되어 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제11항에 있어서,
상기 게이트 전극을 형성하는 단계 이전에, 상기 수용홈 내부로 리세스되는 산화막을 형성하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제17항에 있어서,
상기 산화막은 상기 리세스부의 형상과 대응하도록 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제17항에 있어서,
상기 초격자 구조의 최하부층은 상기 산화막의 바닥면과 동일한 위치를 갖거나 상기 바닥면 보다 상부에 위치하도록 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제11항에 있어서,
상기 반도체층을 형성하는 단계 이전에 상기 베이스 기판 상에 버퍼층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법.
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KR1020100027391A KR101124017B1 (ko) | 2010-03-26 | 2010-03-26 | 반도체 소자 및 그 제조 방법 |
US12/964,218 US8525227B2 (en) | 2010-03-26 | 2010-12-09 | Semiconductor device and method of manufacturing the same |
DE102010054722A DE102010054722A1 (de) | 2010-03-26 | 2010-12-16 | Halbleiterbauteil und Verfahren zu dessen Herstellung |
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KR20120120826A (ko) | 2011-04-25 | 2012-11-02 | 삼성전기주식회사 | 질화물 반도체 소자 및 그 제조방법 |
TWI508281B (zh) * | 2011-08-01 | 2015-11-11 | Murata Manufacturing Co | Field effect transistor |
KR20130066396A (ko) | 2011-12-12 | 2013-06-20 | 삼성전기주식회사 | 질화물 반도체 소자 및 그 제조 방법 |
EP2608268B8 (en) * | 2011-12-19 | 2017-06-21 | Nexperia B.V. | Semiconductor device |
US9660043B2 (en) * | 2012-06-04 | 2017-05-23 | Sensor Electronic Technology, Inc. | Ohmic contact to semiconductor layer |
US9793439B2 (en) | 2012-07-12 | 2017-10-17 | Sensor Electronic Technology, Inc. | Metallic contact for optoelectronic semiconductor device |
JP6258148B2 (ja) * | 2014-08-05 | 2018-01-10 | 株式会社東芝 | 半導体装置 |
ITUB20155536A1 (it) | 2015-11-12 | 2017-05-12 | St Microelectronics Srl | Transistore hemt di tipo normalmente spento includente una trincea contenente una regione di gate e formante almeno un gradino, e relativo procedimento di fabbricazione |
CN105895687B (zh) * | 2016-04-18 | 2019-03-05 | 中国电子科技集团公司第五十五研究所 | 一种基于再生长技术降低GaN HEMT器件欧姆接触电阻的方法及GaN HEMT器件 |
KR102261740B1 (ko) * | 2016-11-10 | 2021-06-09 | 한국전자통신연구원 | 고주파 소자 및 이의 제조 방법 |
WO2020240310A1 (en) * | 2019-05-30 | 2020-12-03 | National Research Council Of Canada | Ohmic contacts with direct access pathways to two-dimensional electron sheets |
CN110504299A (zh) * | 2019-08-20 | 2019-11-26 | 西安电子科技大学 | 基于图形化再生长的GaN凹槽阳极肖特基二极管制备方法 |
CN114616678A (zh) * | 2019-11-26 | 2022-06-10 | 苏州晶湛半导体有限公司 | 半导体结构及其制作方法 |
US11605722B2 (en) * | 2020-05-18 | 2023-03-14 | Teledyne Scientific & Imaging, Llc | Ohmic contact for multiple channel FET |
CN112885896B (zh) * | 2021-01-29 | 2022-07-01 | 电子科技大学 | 一种hemt器件 |
CN116110963A (zh) * | 2021-11-09 | 2023-05-12 | 联华电子股份有限公司 | 半导体装置以及其制作方法 |
WO2023243245A1 (ja) * | 2022-06-15 | 2023-12-21 | 住友電気工業株式会社 | 半導体装置及び半導体装置の製造方法 |
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