JP6705776B2 - 3d nandハードマスク用途向けナノ結晶ダイヤモンド炭素膜 - Google Patents
3d nandハードマスク用途向けナノ結晶ダイヤモンド炭素膜 Download PDFInfo
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- JP6705776B2 JP6705776B2 JP2017124160A JP2017124160A JP6705776B2 JP 6705776 B2 JP6705776 B2 JP 6705776B2 JP 2017124160 A JP2017124160 A JP 2017124160A JP 2017124160 A JP2017124160 A JP 2017124160A JP 6705776 B2 JP6705776 B2 JP 6705776B2
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- Prior art keywords
- layer
- nanocrystalline diamond
- etching
- substrate
- diamond layer
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- 229910003460 diamond Inorganic materials 0.000 title claims description 75
- 239000010432 diamond Substances 0.000 title claims description 75
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title description 16
- 229910052799 carbon Inorganic materials 0.000 title description 15
- 239000000758 substrate Substances 0.000 claims description 91
- 238000000034 method Methods 0.000 claims description 61
- 238000000151 deposition Methods 0.000 claims description 48
- 230000008021 deposition Effects 0.000 claims description 36
- 238000005530 etching Methods 0.000 claims description 30
- 239000004065 semiconductor Substances 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 9
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 6
- 238000004380 ashing Methods 0.000 claims description 5
- 239000012777 electrically insulating material Substances 0.000 claims description 4
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 4
- 238000000059 patterning Methods 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 229910021332 silicide Inorganic materials 0.000 claims description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 2
- 239000011370 conductive nanoparticle Substances 0.000 claims description 2
- 229910052735 hafnium Inorganic materials 0.000 claims description 2
- -1 hafnium nitride Chemical class 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 2
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 239000007789 gas Substances 0.000 description 46
- 230000008569 process Effects 0.000 description 34
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 14
- 239000001257 hydrogen Substances 0.000 description 14
- 229910052739 hydrogen Inorganic materials 0.000 description 14
- 239000002243 precursor Substances 0.000 description 13
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- 150000003254 radicals Chemical class 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 150000001335 aliphatic alkanes Chemical group 0.000 description 7
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
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- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 239000002113 nanodiamond Substances 0.000 description 4
- 238000010899 nucleation Methods 0.000 description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229910052732 germanium Inorganic materials 0.000 description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910052756 noble gas Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000000527 sonication Methods 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- WMFYOYKPJLRMJI-UHFFFAOYSA-N Lercanidipine hydrochloride Chemical compound Cl.COC(=O)C1=C(C)NC(C)=C(C(=O)OC(C)(C)CN(C)CCC(C=2C=CC=CC=2)C=2C=CC=CC=2)C1C1=CC=CC([N+]([O-])=O)=C1 WMFYOYKPJLRMJI-UHFFFAOYSA-N 0.000 description 1
- AXQKVSDUCKWEKE-UHFFFAOYSA-N [C].[Ge].[Si] Chemical compound [C].[Ge].[Si] AXQKVSDUCKWEKE-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000000576 coating method 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
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 description 1
- 229910021334 nickel silicide Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 229910021341 titanium silicide Inorganic materials 0.000 description 1
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- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0334—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/0337—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
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- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02274—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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Description
Claims (13)
- デバイス層をエッチングする方法であって、
デバイス層上にナノ結晶ダイヤモンド層を堆積させることと、
前記デバイス層及び前記ナノ結晶ダイヤモンド層にチャネルを形成することであって、
前記ナノ結晶ダイヤモンド層をパターニングし、エッチングすることと、
前記デバイス層をエッチングすることとを含む、チャネルを形成することと、
前記ナノ結晶ダイヤモンド層を除去することと
を含む、方法。 - 前記デバイス層をエッチングすることが、電気絶縁材料をエッチングすることを含む、請求項1に記載の方法。
- 前記デバイス層が、酸化ケイ素、窒化ケイ素、酸窒化ケイ素、又はそれらの組み合わせを含む、請求項2に記載の方法。
- 前記デバイス層をエッチングすることが、金属又は金属合金をエッチングすることを含む、請求項1に記載の方法。
- 前記デバイス層が、チタン、白金、ルテニウム、窒化チタン、窒化ハフニウム、窒化タンタル、窒化ジルコニウム、又は金属シリサイドを含む、請求項4に記載の方法。
- 前記デバイス層が、半導体フローティングゲート、導電性ナノ粒子、又は個別電荷蓄積誘電体特徴部を含む、請求項1に記載の方法。
- さらに、前記ナノ結晶ダイヤモンド層を堆積させる前にシード層を形成することを含む、請求項1に記載の方法。
- デバイス層をエッチングする方法であって、
基板上にデバイス層を堆積させることと、
前記デバイス層上に、6nm未満の平均粒径を有するナノ結晶ダイヤモンド層を堆積させることと、
前記ナノ結晶ダイヤモンド層からエッチマスクを形成することと、
前記エッチマスクを介して前記デバイス層をエッチングしてチャネルを形成することと、
前記ナノ結晶ダイヤモンド層をアッシングすること
を含む、方法。 - 前記ナノ結晶ダイヤモンド層の堆積中、前記基板が500℃〜650℃の温度範囲に維持される、請求項8に記載の方法。
- さらに、前記ナノ結晶ダイヤモンド層を堆積させる前にシード層を形成することを含む、請求項8に記載の方法。
- デバイス層をエッチングする方法であって、
基板上に複数のデバイス層を堆積させることと、
前記複数のデバイス層上にナノ結晶ダイヤモンド層を堆積させることと、
前記複数のデバイス層及び前記ナノ結晶ダイヤモンド層にチャネルを形成することであって、
前記ナノ結晶ダイヤモンド層をパターニングし、エッチングして、エッチマスクを形成することと、
前記エッチマスクを介して前記複数のデバイス層をエッチングすることとを含む、チャネルを形成することと、
前記ナノ結晶ダイヤモンド層を除去すること
を含む、方法。 - 前記複数のデバイス層をエッチングすることが、電気絶縁材料をエッチングすることを含む、請求項11に記載の方法。
- 前記複数のデバイス層をエッチングすることが、酸化ケイ素、窒化ケイ素、酸窒化ケイ素、又はそれらの組み合わせをエッチングすることを含む、請求項12に記載の方法。
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KR102015578B1 (ko) * | 2012-09-11 | 2019-08-28 | 삼성전자주식회사 | 불휘발성 메모리 장치 및 그 형성방법 |
JP5951442B2 (ja) * | 2012-10-17 | 2016-07-13 | 株式会社半導体エネルギー研究所 | 半導体装置 |
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US9502262B2 (en) | 2016-11-22 |
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TWI670831B (zh) | 2019-09-01 |
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