KR20030084348A - 반도체 소자의 캐패시터 상부전극 제조방법 - Google Patents
반도체 소자의 캐패시터 상부전극 제조방법 Download PDFInfo
- Publication number
- KR20030084348A KR20030084348A KR1020020023021A KR20020023021A KR20030084348A KR 20030084348 A KR20030084348 A KR 20030084348A KR 1020020023021 A KR1020020023021 A KR 1020020023021A KR 20020023021 A KR20020023021 A KR 20020023021A KR 20030084348 A KR20030084348 A KR 20030084348A
- Authority
- KR
- South Korea
- Prior art keywords
- nitride film
- titanium nitride
- semiconductor device
- capacitor
- dielectric
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000004065 semiconductor Substances 0.000 title claims abstract description 16
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims abstract description 40
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000001301 oxygen Substances 0.000 claims abstract description 29
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 23
- 239000012298 atmosphere Substances 0.000 claims description 19
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 14
- 229920005591 polysilicon Polymers 0.000 claims description 14
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 6
- 238000000231 atomic layer deposition Methods 0.000 claims description 4
- 238000005229 chemical vapour deposition Methods 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000002243 precursor Substances 0.000 claims description 2
- 229910052581 Si3N4 Inorganic materials 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims 1
- 238000007669 thermal treatment Methods 0.000 claims 1
- 238000005429 filling process Methods 0.000 abstract description 3
- 229910052715 tantalum Inorganic materials 0.000 description 9
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 9
- 239000003989 dielectric material Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 3
- 229910003071 TaON Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 229910052741 iridium Inorganic materials 0.000 description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 3
- 229910052707 ruthenium Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000010406 interfacial reaction Methods 0.000 description 1
- 229910000457 iridium oxide Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000615 nonconductor Substances 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 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
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
- H10D1/692—Electrodes
Landscapes
- Semiconductor Memories (AREA)
Abstract
Description
Claims (10)
- 기판상에 하부전극과 유전체를 차례로 형성하는 단계;상기 유전체 상에 제1 티타늄질화막을 형성하는 단계;상기 제1 티타늄질화막에 산소를 충진시키는 단계; 및상기 제1 티타늄질화막 상에 도전층을 형성하는 단계를 포함하는 반도체 소자의 캐패시터 제조방법.
- 제1항에 있어서,상기 제1 티타늄질화막에 산소를 충진시키는 단계는,오존분위기(O3), 산소분위기, 산소플라즈마 분위기, N2O 분위기, N2O 플라즈마 분위기, N2+O2분위기, N2+O2플라즈마 분위기 또는 전술한 여러 분위기를 혼합한 분위기에서 5초 ∼ 1분 동안 급속열처리 하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조방법.
- 제1항 또는 제2항에 있어서,상기 제1 티타늄질화막은 50 ∼ 100Å의 두께를 갖는 것을 특징으로 하는 반도체 소자의 캐패시터 제조방법.
- 제1항에 있어서,상기 제1 티타늄질화막은 TiCl4선구물질과 NH3가스를 이용하여 화학기상증착법 또는 원자층증착법을 이용하여 형성되는 것을 특징으로 하는 반도체 소자의 캐패시터 제조방법.
- 제1항에 있어서,상기 제1 티타늄질화막 상에 도전층을 형성하는 단계는,상기 제1 티타늄질화막상에 제2 티타늄질화막과 도핑된 폴리실리콘을 적층하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조방법.
- 제5항에 있어서,상기 제2 티타늄질화막은 100 ∼ 400Å의 두께를 갖는 것을 특징으로 하는 반도체 소자의 캐패시터 제조방법.
- 제5항에 있어서,상기 도핑된 폴리실리콘은 1000 ∼ 3000Å의 두께를 갖는 것을 특징으로 하는 반도체 소자의 캐패시터 제조방법.
- 제5항에 있어서,상기 제1 티타늄질화막 상에 도전층을 형성하는 단계는질소분위기에서 열처리하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조방법.
- 제8항에 있어서,상기 질소분위기에서 열처리하는 단계는퍼니스에서 600 ∼ 800℃의 온도와 20 ∼ 40분 동안 수행되는 것을 특징으로 하는 반도체 소자의 캐패시터 제조방법.
- 제8항에 있어서,상기 질소분위기에서 열처리하는 단계는600 ∼ 800℃의 온도에서 1분 ∼ 3분 동안 급속열처리 하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조방법.
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KR10-2002-0023021A KR100448242B1 (ko) | 2002-04-26 | 2002-04-26 | 반도체 소자의 캐패시터 상부전극 제조방법 |
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KR10-2002-0023021A KR100448242B1 (ko) | 2002-04-26 | 2002-04-26 | 반도체 소자의 캐패시터 상부전극 제조방법 |
Publications (2)
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KR20030084348A true KR20030084348A (ko) | 2003-11-01 |
KR100448242B1 KR100448242B1 (ko) | 2004-09-13 |
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KR10-2002-0023021A KR100448242B1 (ko) | 2002-04-26 | 2002-04-26 | 반도체 소자의 캐패시터 상부전극 제조방법 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116845056A (zh) * | 2023-07-03 | 2023-10-03 | 上海交通大学 | 一种高性能氧化铪基铁电电容器及其制备方法 |
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JP3830652B2 (ja) * | 1998-02-27 | 2006-10-04 | 富士通株式会社 | 半導体装置及びその製造方法 |
KR100316021B1 (ko) * | 1998-10-28 | 2002-01-16 | 박종섭 | 텅스텐 질화막 전극을 갖는 캐패시터 형성방법 |
KR20000041427A (ko) * | 1998-12-22 | 2000-07-15 | 김영환 | 탄탈륨산화막을 유전막으로 갖는 캐패시터 제조 방법 |
KR100388203B1 (ko) * | 2000-08-25 | 2003-06-19 | 주식회사 하이닉스반도체 | 반도체 소자의 캐패시터 제조방법 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116845056A (zh) * | 2023-07-03 | 2023-10-03 | 上海交通大学 | 一种高性能氧化铪基铁电电容器及其制备方法 |
CN116845056B (zh) * | 2023-07-03 | 2024-02-27 | 上海交通大学 | 一种高性能氧化铪基铁电电容器及其制备方法 |
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KR100448242B1 (ko) | 2004-09-13 |
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