JP2006225716A - フィルム成長開始の強化法 - Google Patents
フィルム成長開始の強化法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 120
- 230000003014 reinforcing effect Effects 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 claims abstract description 125
- 239000002184 metal Substances 0.000 claims abstract description 125
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 34
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 34
- 230000008021 deposition Effects 0.000 claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 67
- 150000004767 nitrides Chemical class 0.000 claims description 55
- 238000000151 deposition Methods 0.000 claims description 45
- 238000005229 chemical vapour deposition Methods 0.000 claims description 30
- 229910020776 SixNy Inorganic materials 0.000 claims description 24
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 14
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 13
- 230000002401 inhibitory effect Effects 0.000 claims description 10
- 229910000077 silane Inorganic materials 0.000 claims description 10
- -1 tungsten nitride Chemical class 0.000 claims description 9
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 7
- 229910052721 tungsten Inorganic materials 0.000 claims description 7
- 239000010937 tungsten Substances 0.000 claims description 7
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 6
- 238000000663 remote plasma-enhanced chemical vapour deposition Methods 0.000 claims description 6
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-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 5
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 4
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 229910052735 hafnium Inorganic materials 0.000 claims description 4
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 4
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910039444 MoC Inorganic materials 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- ILCYGSITMBHYNK-UHFFFAOYSA-N [Si]=O.[Hf] Chemical compound [Si]=O.[Hf] ILCYGSITMBHYNK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- GPBUGPUPKAGMDK-UHFFFAOYSA-N azanylidynemolybdenum Chemical compound [Mo]#N GPBUGPUPKAGMDK-UHFFFAOYSA-N 0.000 claims description 3
- CFJRGWXELQQLSA-UHFFFAOYSA-N azanylidyneniobium Chemical compound [Nb]#N CFJRGWXELQQLSA-UHFFFAOYSA-N 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000012847 fine chemical Substances 0.000 claims description 3
- KHPFBJNNLJSUMO-UHFFFAOYSA-N hafnium(4+) oxygen(2-) scandium(3+) Chemical compound [O-2].[Sc+3].[Hf+4] KHPFBJNNLJSUMO-UHFFFAOYSA-N 0.000 claims description 3
- WHJFNYXPKGDKBB-UHFFFAOYSA-N hafnium;methane Chemical compound C.[Hf] WHJFNYXPKGDKBB-UHFFFAOYSA-N 0.000 claims description 3
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 claims description 3
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 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 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- 229910003468 tantalcarbide Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- ADXCGQOYZCNGAT-UHFFFAOYSA-N [Sc].[Hf] Chemical compound [Sc].[Hf] ADXCGQOYZCNGAT-UHFFFAOYSA-N 0.000 claims description 2
- CEPICIBPGDWCRU-UHFFFAOYSA-N [Si].[Hf] Chemical compound [Si].[Hf] CEPICIBPGDWCRU-UHFFFAOYSA-N 0.000 claims description 2
- QCLQZCOGUCNIOC-UHFFFAOYSA-N azanylidynelanthanum Chemical compound [La]#N QCLQZCOGUCNIOC-UHFFFAOYSA-N 0.000 claims description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 2
- 229910001936 tantalum oxide Inorganic materials 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 claims description 2
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 abstract description 22
- 238000004381 surface treatment Methods 0.000 abstract description 6
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 85
- 239000010408 film Substances 0.000 description 30
- 239000000463 material Substances 0.000 description 23
- 238000000231 atomic layer deposition Methods 0.000 description 15
- 230000009036 growth inhibition Effects 0.000 description 12
- 238000011282 treatment Methods 0.000 description 12
- 239000004065 semiconductor Substances 0.000 description 11
- 238000005240 physical vapour deposition Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000004544 sputter deposition Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000006911 nucleation Effects 0.000 description 4
- 238000010899 nucleation Methods 0.000 description 4
- 150000003254 radicals Chemical class 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 229910052454 barium strontium titanate Inorganic materials 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000002739 metals Chemical group 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000277 atomic layer chemical vapour deposition Methods 0.000 description 1
- IVHJCRXBQPGLOV-UHFFFAOYSA-N azanylidynetungsten Chemical compound [W]#N IVHJCRXBQPGLOV-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(iv) oxide Chemical compound O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 1
- 150000002831 nitrogen free-radicals Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
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- Chemical Vapour Deposition (AREA)
- Formation Of Insulating Films (AREA)
Abstract
【解決手段】 この発明は一般に、集積回路(IC)製作プロセスに関する。この発明は、より特別にはその後の金属、金属酸化物、金属窒化物、および/または、金属カーバイドの層のために、二酸化珪素やシリコン窒化酸化物層などの表面の処理に関する。この発明はさらにこの発明の方法で入手できる高いkのゲートに関する。
【選択図】 図1
Description
を理解すべきである。
Claims (19)
- 金属、金属酸化物、金属窒化物、金属窒化酸化物、および/または、金属カーバイドの層の成長を高めるための方法であり、前述の金属、金属酸化物、金属窒化物、金属窒化酸化物、および/または、金属カーバイドの層をSixNy層上に堆積するステップを備え、xおよびyは、実数で、xはおよそ3に等しいか、またはおよそ3より大きく、yは0より大きいか、およそ4未満であり、xとyは、等しいか、または異なることを特徴とする方法。
- 前記金属、金属酸化物、金属窒化物、金属窒化酸化物、および/または、金属カーバイドを堆積するステップの前に、前記SixNy層は、金属成長阻害表面上に堆積される請求項1記載の方法。
- 前記金属酸化物は、酸化チタン、タンタル酸化物、アルミニウム酸化物、酸化ジルコニウム、ランタン酸化物、ハフニウム酸化物、ハフニウム酸化スカンジウム、ハフニウムシリコン酸化物、およびそれらのいずれか2、3、4、またはそれ以上の結合からなるグループから選択される請求項1または2に記載の方法。
- 前記金属は、タンタル、ルセニウム、チタニウム、タングステン、アルミニウム、銅、コバルト、ニッケル、モリブデン、およびそれらのいずれか2、3、4、5、6、またはそれ以上の結合からなるグループから選択される請求項1から3のいずれかに記載の方法。
- 前記金属窒化物は、タンタル窒化物、窒化チタン、タングステン窒化物と、ニオブ窒化物、モリブデン窒化物、ハフニウム窒化物、およびそれのいずれか2、3、4、5または6つの組み合わせの結合から成るグループから選択される請求項1から4のいずれかに記載の方法。
- 前記金属窒化酸化物は、チタニウム窒化酸化物、タンタル窒化酸化物、アルミニウム窒化酸化物、ジルコニウム窒化酸化物、ランタン窒化酸化物、ハフニウム窒化酸化物、ハフニウムスカンジウム窒化酸化物、ハフニウムシリコン窒化酸化物、およびそれのいずれか2、3、4、またはそれ以上の組み合わせの結合から成るグループから選択される請求項1から5のいずれかに記載の方法。
- 前記金属カーバイドは、タンタルカーバイド、炭化チタン、タングステンカーバイド、ニオブカーバイド、モリブデンカーバイド、ハフニウムカーバイド、およびそれのいずれか2、3、4、5または6つの組み合わせの結合から成るグループから選択される請求項1から6のいずれかに記載の方法。
- 前記金属成長阻害表面は、シリコン酸化物とシリコン窒化酸化物から成るグループから選択される請求項2から7のいずれかに記載の方法。
- 前記SixNy層は、化学的気相成長法(CVD)のプロセスにより堆積される請求項2から8のいずれかに記載の方法。
- 前記化学的気相成長法のプロセスは少なくとも1つのシランとアンモニアを用いる請求項9記載の方法。
- 前記SixNy層は、精密化学的気相成長法(RACVD)のプロセス、プラズマエンハンスト化学的気相成長法(PECVD)のプロセス、または遠隔ラズマエンハンスト化学的気相成長法(PECVD)(RPECVD)のプロセスにより堆積される請求項2から8のいずれかに記載の方法。
- 前記RACVD、RPECVD、またはPECVDのプロセスがシラン、窒素基および選択的なアンモニアの少なくとも1つを用いる請求項11記載の方法。
- 前記少なくとも1つのシランが、モノシラン、ジシレン、トリシレン、モノクロシレン、ジクロロシラン、トリクロロシレン、およびテトラクロロシレンから成るグループから選択される請求項10または12に記載の方法。
- 前記金属、金属酸化物、金属窒化物、金属窒化酸化物、および/または、金属カーバイドが、化学的気相成長法のプロセス、MOCVDのプロセスまたはALDのプロセスで堆積される請求項1から13のいずれかに記載の方法。
- 金属、金属酸化物、金属窒化物、金属窒化酸化物、および/または、金属カーバイド層のその後の堆積のために、前記金属成長阻害表面を処理する請求項2記載の方法に基づく使用。
- 請求項1から14のいずれかに基づく方法を備える高いkのゲートスタックを製造するための方法。
- 請求項16に基づく方法により得ることのできる高いkのスタック。
- 請求項1から16のいずれかに基づく方法を備える集積回路を製造方法。
- 金属、金属酸化物、金属窒化物、金属窒化酸化物、および/または、金属カーバイドを成長させるためのサポートとしてのSixNy層の使用。
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JPH01120859A (ja) * | 1987-11-04 | 1989-05-12 | Seiko Epson Corp | Mos型半導体集積回路装置 |
JP2002038271A (ja) * | 2000-06-28 | 2002-02-06 | Applied Materials Inc | 順次堆積技術を使用して耐熱金属層を堆積させ核生成層を形成させる方法及び装置 |
JP2003068731A (ja) * | 2001-08-29 | 2003-03-07 | Tokyo Electron Ltd | 絶縁膜の形成方法および形成システム |
JP2004277864A (ja) * | 2003-03-18 | 2004-10-07 | Toshiba Corp | 成膜方法及び成膜装置 |
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