KR102461809B1 - 반도체 소자 및 이의 제조방법 - Google Patents
반도체 소자 및 이의 제조방법 Download PDFInfo
- Publication number
- KR102461809B1 KR102461809B1 KR1020180137152A KR20180137152A KR102461809B1 KR 102461809 B1 KR102461809 B1 KR 102461809B1 KR 1020180137152 A KR1020180137152 A KR 1020180137152A KR 20180137152 A KR20180137152 A KR 20180137152A KR 102461809 B1 KR102461809 B1 KR 102461809B1
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- South Korea
- Prior art keywords
- layer
- hydrogen supply
- semiconductor device
- etch stop
- pattern
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 94
- 238000004519 manufacturing process Methods 0.000 title description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 198
- 239000001257 hydrogen Substances 0.000 claims abstract description 198
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 194
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 55
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 47
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 21
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 21
- 229910003697 SiBN Inorganic materials 0.000 claims description 14
- 239000011810 insulating material Substances 0.000 claims description 12
- -1 SiCN Inorganic materials 0.000 claims description 10
- 150000002431 hydrogen Chemical class 0.000 claims 1
- 239000010410 layer Substances 0.000 description 342
- 238000000034 method Methods 0.000 description 48
- 239000003990 capacitor Substances 0.000 description 22
- 125000006850 spacer group Chemical group 0.000 description 19
- 238000001039 wet etching Methods 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 16
- 239000002184 metal Substances 0.000 description 15
- 239000012535 impurity Substances 0.000 description 12
- 230000007547 defect Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000005137 deposition process Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 229910021332 silicide Inorganic materials 0.000 description 6
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 6
- 238000001312 dry etching Methods 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229920003209 poly(hydridosilsesquioxane) Polymers 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 239000005368 silicate glass Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 2
- 229910021342 tungsten silicide Inorganic materials 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 241000239218 Limulus Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 108010072542 endotoxin binding proteins Proteins 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- H10B12/05—Making the transistor
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
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- H01L21/02129—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC the material being boron or phosphorus doped silicon oxides, e.g. BPSG, BSG or PSG
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Abstract
Description
도 2 내지 도 9는 본 발명의 일 실시예에 의한 반도체 소자의 제조 방법을 나타내는 단면도들이다.
도 10은 예시적인 실시예에 따른 반도체 소자를 나타내는 단면도이다.
도 11은 예시적인 실시예에 따른 반도체 소자의 제조 방법을 나타내는 단면도이다.
도 12는 예시적인 실시예에 따른 반도체 소자를 나타내는 단면도이다.
도 13은 예시적인 실시예에 따른 반도체 소자의 제조 방법을 나타내는 단면도이다.
도 14는 예시적인 실시예에 따른 반도체 소자를 나타내는 단면도이다.
도 15 내지 도 17은 예시적인 실시예에 따른 반도체 소자의 제조 방법을 나타내는 단면도들이다.
도 18은 예시적인 실시예에 따른 반도체 소자를 나타내는 단면도이다.
도 19는 예시적인 실시예에 따른 반도체 소자를 나타내는 단면도이다.
도20은 예시적인 실시예에 따른 반도체 소자를 나타내는 단면도이다.
도21 내지 도 23은 본 발명의 일 실시예에 의한 반도체 소자의 제조 방법을 나타내는 단면도들이다
도 24는 예시적인 실시예에 따른 반도체 소자를 나타내는 단면도이다.
도 25는 예시적인 실시예에 따른 반도체 소자를 나타내는 단면도이다.
122a : 패드 패턴 124 : 상부 절연 패턴
130 : 식각 저지막 132 : 수소 공급막
136 : 제1 지지 패턴 140 : 제2 지지 패턴
144 : 하부 전극 150 : 유전막
152 : 상부 전극 126 : 수소 공급 패턴
170 : 제2 식각 저지막
Claims (20)
- 기판 상에 구비되고, 패드 패턴들을 포함하고, 상기 패드 패턴들의 상부면이 노출되는 하부 구조물;
상기 패드 패턴들 상에 형성된 제1 식각 저지막;
상기 패드 패턴들의 상부면과 접하는 하부 전극들;
상기 하부 전극들 표면 상에 순차적으로 적층되는 유전막 및 상부 전극; 및
상기 하부 전극들의 사이에 구비되고, 상기 기판의 상부면을 기준으로 할 때 상기 유전막보다 낮게 배치되고, 수소를 포함하는 수소 공급막을 포함하고,
상기 수소 공급막의 적어도 일부는 상기 제1 식각 저지막과 접하는 반도체 소자. - 제1항에 있어서, 상기 패드 패턴들 사이를 매립하는 하부 절연 패턴이 더 포함되고, 상기 제1 식각 저지막은 상기 패드 패턴들 및 하부 절연 패턴 상에 구비되는 반도체 소자.
- 제1항에 있어서, 상기 수소 공급막은 실리콘 산화물의 습식 식각액에 대해 5Å/min 이하의 낮은 식각율을 갖는 절연 물질을 포함하는 반도체 소자.
- 제1항에 있어서, 상기 수소 공급막은 상기 제1 식각 저지막 상에 구비되고, 상기 수소 공급막은 SiOCH 또는 SiOC를 포함하는 반도체 소자.
- 제1항에 있어서, 상기 제1 식각 저지막은 실리콘 질화물, SiCN, SiBN 또는 SiON을 포함하는 반도체 소자.
- 제1항에 있어서, 상기 제1 식각 저지막 상에 상기 수소 공급막이 구비되고, 상기 수소 공급막 상에 제2 식각 저지막이 더 포함되는 반도체 소자.
- 제6항에 있어서, 상기 수소 공급막은 수소를 포함하는 실리콘 산화물을 포함하는 반도체 소자.
- 제6항에 있어서, 상기 제2 식각 저지막은 SiCN 또는 SiBN을 포함하는 반도체 소자.
- 제6항에 있어서, 상기 제2 식각 저지막의 두께는 상기 제1 식각 저지막의 두께보다 얇은 반도체 소자.
- 제1항에 있어서, 상기 수소 공급막은 상기 패드 패턴들 사이를 매립하는 반도체 소자.
- 제10항에 있어서, 상기 수소 공급막은 SiOCH 또는 SiOC를 포함하는 반도체 소자.
- 제1항에 있어서, 상기 하부 전극들의 측벽의 적어도 일부분과 접촉하도록 배치되는 지지 패턴이 더 구비되는 반도체 소자.
- 제1항에 있어서, 상기 기판 상에 비트 라인 구조물들이 더 포함되고, 상기 수소 공급막은 상기 비트 라인 구조물의 저면보다 높게 배치되는 반도체 소자.
- 기판 상에 구비되고, 패드 패턴들 및 상기 패드 패턴들 사이에 하부 절연 패턴을 포함하고, 상기 패드 패턴들 및 하부 절연 패턴의 상부면이 노출되는 하부 구조물;
상기 패드 패턴 및 하부 절연 패턴 상에 구비되는 제1 식각 저지막;
상기 제1 식각 저지막 상에, 상기 제1 식각 저지막과 접하도록 구비되고, 수소를 포함하는 수소 공급막;
상기 수소 공급막 및 제1 식각 저지막을 관통하여 상기 패드 패턴들의 상부면과 접하는 하부 전극들; 및
상기 하부 전극들 표면 상에 순차적으로 적층되는 유전막 및 상부 전극을 포함하는 반도체 소자. - 제14항에 있어서, 상기 수소 공급막은 SiOCH 또는 SiOC를 포함하는 반도체 소자.
- 제14항에 있어서, 상기 제1 식각 저지막은 실리콘 질화물, SiCN, SiBN 또는 SiON을 포함하는 반도체 소자.
- 제14항에 있어서, 상기 수소 공급막 상에 제2 식각 저지막이 더 포함되는 반도체 소자.
- 제17항에 있어서, 상기 수소 공급막은 수소를 포함하는 실리콘 산화물을 포함하는 반도체 소자.
- 기판 상에 구비되고, 패드 패턴들 및 상기 패드 패턴들 사이의 수소 공급 패턴을 포함하고, 상기 패드 패턴들 및 수소 공급 패턴의 상부면이 노출되는 하부 구조물;
상기 패드 패턴들 및 수소 공급 패턴 상에 구비되고, 상기 수소 공급 패턴의 적어도 일부와 접하는 제1 식각 저지막;
상기 하부 구조물 상에 구비되고, 상기 패드 패턴들의 상부면과 접하는 하부 전극들; 및
상기 하부 전극들 표면 상에 순차적으로 적층되는 유전막 및 상부 전극을 포함하는 반도체 소자. - 제19항에 있어서, 상기 수소 공급 패턴은 SiOCH 또는 SiOC를 포함하는 반도체 소자.
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US16/420,387 US11133317B2 (en) | 2018-11-09 | 2019-05-23 | DRAM with a hydrogen-supply layer and a high-capacitance embedded capacitor with a cylindrical storage node |
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