JP6957310B2 - 半導体装置およびcmosトランジスタ - Google Patents
半導体装置およびcmosトランジスタ Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 62
- 239000011229 interlayer Substances 0.000 claims description 59
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical group O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 48
- 229910052751 metal Inorganic materials 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 40
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 12
- 229910000314 transition metal oxide Inorganic materials 0.000 claims description 7
- 229910001942 caesium oxide Inorganic materials 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 5
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims description 5
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 5
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- KOPBYBDAPCDYFK-UHFFFAOYSA-N caesium oxide Chemical compound [O-2].[Cs+].[Cs+] KOPBYBDAPCDYFK-UHFFFAOYSA-N 0.000 claims description 2
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(iv) oxide Chemical group O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910019639 Nb2 O5 Inorganic materials 0.000 claims 1
- 229910052758 niobium Inorganic materials 0.000 claims 1
- 239000010955 niobium Substances 0.000 claims 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims 1
- 239000010408 film Substances 0.000 description 126
- 238000010586 diagram Methods 0.000 description 26
- 239000012212 insulator Substances 0.000 description 21
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 230000008859 change Effects 0.000 description 9
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 8
- 229910000449 hafnium oxide Inorganic materials 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000005283 ground state Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000005300 metallic glass Substances 0.000 description 3
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 3
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- -1 Gd2O3 Chemical compound 0.000 description 1
- 229910003074 TiCl4 Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
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- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
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- H01L29/4966—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET the conductor material next to the insulator being a composite material, e.g. organic material, TiN, MoSi2
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Description
図5は、量子井戸による擬似的な金属電極形成の一例を示す概念図である。量子井戸構造の中には、量子井戸の寸法に依存する量子化されたサブバンド構造が形成される。また、量子井戸構造のフェルミエネルギーは、電子占有されたサブバンドの上端のエネルギーにより決定される。
図8は、本実施形態における半導体装置10の一例を示す図である。図8(a)は、本実施形態における半導体装置10の構造の一例を示す。また、図8(b)は、本実施形態における半導体装置10の電極11、中間膜12、および絶縁膜13における仕事関数の関係の一例を示す。本実施形態における半導体装置10は、例えば図8に示されるように、電極11、中間膜12、絶縁膜13、および半導体14を備える。本実施形態における半導体装置10は、MIS(Metal Insulator Semiconductor)構造である。
次に、中間膜12の膜厚とリーク電流について実験を行った。図15は、リーク電流の実験結果の一例を示す図である。図15に示された実験では、図8に示された半導体装置10において、半導体14に代えて、電極11が設けられたサンプルを用いた。また、実験では、電極11の材料としてTiNを用い、中間膜12の材料としてV2O5またはWO3を用い、絶縁膜13の材料としてZrO2を用いた。また、実験では、中間膜12が1〜1.5nmの膜厚のV2O5で形成されたサンプル1と、中間膜12が1nm以下の膜厚のV2O5で形成されたサンプル2と、中間膜12が1〜1.5nmの膜厚のWO3で形成されたサンプル3と、中間膜12が1nm以下の膜厚のWO3で形成されたサンプル4と、中間膜12が設けられていないサンプル5とを用いた。いずれのサンプルにおいても、絶縁膜13の膜厚は6nmである。
例えば、上記した実施形態における半導体装置10の構造が、CMOSトランジスタにおけるp型MOSトランジスタのゲートスタック構造に適用されてもよい。具体的には、p型の半導体により構成された半導体14を含む半導体装置10をゲートスタック構造として有するp型MOSトランジスタと、通常の金属電極、絶縁膜、およびn型半導体をゲート構造として有するn型MOSトランジスタとにより、CMOSトランジスタが構成されてもよい。
11 電極
12 中間膜
13 絶縁膜
14 半導体
Claims (3)
- 金属からなる第1の電極と、
第1の半導体と、
前記第1の電極と前記第1の半導体との間に設けられ、絶縁性の遷移金属酸化物からなる第1の絶縁膜と、
前記第1の電極と前記第1の絶縁膜との間に設けられた中間膜と
を備え、
前記中間膜の伝導帯の下端は、前記第1の電極を構成する金属のフェルミレベルよりも低く、
前記中間膜の厚さは1nm未満であり、
前記中間膜は、五酸化バナジウム(V2O5)であることを特徴とする半導体装置。 - 前記第1の絶縁膜を構成する遷移金属酸化物は、
酸化ハフニウム(HfO2)、ジルコニア(ZrO2)、酸化アルミニウム(Al2O3)、酸化イットリウム(Y2O3)、酸化セシウム(CeO2)、酸化ランタン(La2O3)、酸化ガドリウム(Gd203)、五酸化タンタル(Ta2O5)、五酸化ニオブ(Nb2O5)、または、これら複合酸化物、Silicate、もしくは積層膜であることを特徴とする請求項1に記載の半導体装置。 - ゲートスタック構造として、第2の電極、第2の絶縁膜、および第2の半導体を有するn型MOSトランジスタと、
ゲートスタック構造として、請求項1または2に記載の半導体装置を含むp型MOSトランジスタと
を備えることを特徴とするCMOSトランジスタ。
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JP2017205069A JP6957310B2 (ja) | 2017-10-24 | 2017-10-24 | 半導体装置およびcmosトランジスタ |
TW107136665A TWI788437B (zh) | 2017-10-24 | 2018-10-18 | 半導體裝置及cmos電晶體 |
KR1020180126063A KR102169425B1 (ko) | 2017-10-24 | 2018-10-22 | 반도체 장치 및 cmos 트랜지스터 |
US16/169,233 US20190123165A1 (en) | 2017-10-24 | 2018-10-24 | Semiconductor device and cmos transistor |
JP2021164880A JP7191174B2 (ja) | 2017-10-24 | 2021-10-06 | 半導体装置 |
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KR100874399B1 (ko) * | 2002-07-18 | 2008-12-17 | 삼성전자주식회사 | 원자층 증착법을 이용한 물질 형성방법, 및 이를 이용한반도체 장치의 캐패시터 형성방법 |
US6831313B2 (en) * | 2001-05-10 | 2004-12-14 | Symetrix Corporation | Ferroelectric composite material, method of making same and memory utilizing same |
JP4792716B2 (ja) * | 2004-07-06 | 2011-10-12 | 日本電気株式会社 | 半導体装置およびその製造方法 |
JP4764030B2 (ja) * | 2005-03-03 | 2011-08-31 | 株式会社東芝 | 半導体装置及びその製造方法 |
US7241691B2 (en) * | 2005-03-28 | 2007-07-10 | Freescale Semiconductor, Inc. | Conducting metal oxide with additive as p-MOS device electrode |
JP5676111B2 (ja) * | 2008-02-13 | 2015-02-25 | 日本電気株式会社 | 半導体装置及びその製造方法 |
JP5354944B2 (ja) * | 2008-03-27 | 2013-11-27 | 株式会社東芝 | 半導体装置および電界効果トランジスタ |
JP5262233B2 (ja) * | 2008-03-27 | 2013-08-14 | 日本電気株式会社 | 窒化ジルコニウム界面層を有するキャパシター構造 |
US9024299B2 (en) * | 2008-10-14 | 2015-05-05 | Imec | Method for fabricating a dual work function semiconductor device and the device made thereof |
EP2584601B1 (en) * | 2008-10-14 | 2015-08-19 | Imec | Method for fabricating a dual work function semiconductor device |
JP2010153586A (ja) * | 2008-12-25 | 2010-07-08 | Toshiba Corp | 電界効果トランジスタおよびその製造方法 |
JP2010212618A (ja) * | 2009-03-12 | 2010-09-24 | Toshiba Corp | 半導体装置 |
JP2010278319A (ja) * | 2009-05-29 | 2010-12-09 | Renesas Electronics Corp | 半導体装置およびその製造方法 |
WO2011013374A1 (ja) * | 2009-07-29 | 2011-02-03 | キヤノンアネルバ株式会社 | 半導体装置およびその製造方法 |
KR102221207B1 (ko) * | 2009-09-04 | 2021-03-03 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 발광 장치 및 발광 장치를 제작하기 위한 방법 |
JP4798282B2 (ja) * | 2009-10-27 | 2011-10-19 | 大日本印刷株式会社 | 正孔注入輸送層を有するデバイス、及びその製造方法、並びに正孔注入輸送層形成用インク |
KR20190093705A (ko) * | 2009-11-27 | 2019-08-09 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치 및 반도체 장치의 제작방법 |
SG10201503073QA (en) * | 2010-05-05 | 2015-06-29 | Univ Singapore | Hole doping of graphene |
JP2012099517A (ja) * | 2010-10-29 | 2012-05-24 | Sony Corp | 半導体装置及び半導体装置の製造方法 |
US11329241B2 (en) * | 2013-08-29 | 2022-05-10 | The Regents Of The University Of Michigan | Exciton-blocking treatments for buffer layers in organic photovoltaics |
WO2015121771A1 (en) * | 2014-02-14 | 2015-08-20 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and electronic device |
US10180354B2 (en) * | 2014-11-07 | 2019-01-15 | Semiconductor Energy Laboratory Co., Ltd. | Imaging device and electronic device |
JP2017054939A (ja) * | 2015-09-10 | 2017-03-16 | 株式会社東芝 | 有機光電変換素子、及び固体撮像素子 |
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JP7191174B2 (ja) | 2022-12-16 |
KR20190045859A (ko) | 2019-05-03 |
TWI788437B (zh) | 2023-01-01 |
US20190123165A1 (en) | 2019-04-25 |
JP2019079907A (ja) | 2019-05-23 |
TW201931605A (zh) | 2019-08-01 |
KR102169425B1 (ko) | 2020-10-23 |
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