KR100614576B1 - 캐패시터 제조 방법 - Google Patents
캐패시터 제조 방법 Download PDFInfo
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- KR100614576B1 KR100614576B1 KR1019990020936A KR19990020936A KR100614576B1 KR 100614576 B1 KR100614576 B1 KR 100614576B1 KR 1019990020936 A KR1019990020936 A KR 1019990020936A KR 19990020936 A KR19990020936 A KR 19990020936A KR 100614576 B1 KR100614576 B1 KR 100614576B1
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- South Korea
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- film
- lower electrode
- capacitor
- diffusion barrier
- forming
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000009792 diffusion process Methods 0.000 claims abstract description 39
- 230000004888 barrier function Effects 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 29
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 27
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 27
- 238000009713 electroplating Methods 0.000 claims abstract description 11
- 239000004065 semiconductor Substances 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 27
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 14
- 238000000151 deposition Methods 0.000 claims description 13
- 239000011229 interlayer Substances 0.000 claims description 11
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- 229910052718 tin Inorganic materials 0.000 claims description 9
- 238000005530 etching Methods 0.000 claims description 8
- 238000005229 chemical vapour deposition Methods 0.000 claims description 6
- 238000005240 physical vapour deposition Methods 0.000 claims description 6
- 229910010037 TiAlN Inorganic materials 0.000 claims description 3
- 229910008482 TiSiN Inorganic materials 0.000 claims description 3
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 claims description 3
- 229910021332 silicide Inorganic materials 0.000 claims 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 10
- 239000001301 oxygen Substances 0.000 abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 abstract description 10
- 230000003647 oxidation Effects 0.000 abstract description 8
- 238000007254 oxidation reaction Methods 0.000 abstract description 8
- 238000003860 storage Methods 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 229910052814 silicon oxide Inorganic materials 0.000 abstract description 3
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 93
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 52
- 239000010936 titanium Substances 0.000 description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910008484 TiSi Inorganic materials 0.000 description 8
- 229910052697 platinum Inorganic materials 0.000 description 7
- 238000004544 sputter deposition Methods 0.000 description 7
- 238000001755 magnetron sputter deposition Methods 0.000 description 5
- 238000005546 reactive sputtering Methods 0.000 description 5
- 239000005380 borophosphosilicate glass Substances 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 229910052741 iridium Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910010038 TiAl Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- QRDJMFAGNINQFN-UHFFFAOYSA-N CC[Ti](N)CC Chemical compound CC[Ti](N)CC QRDJMFAGNINQFN-UHFFFAOYSA-N 0.000 description 1
- QDGMSMUNXGCWRA-UHFFFAOYSA-N C[Ti](C)N Chemical compound C[Ti](C)N QDGMSMUNXGCWRA-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 or Ru-based elements Inorganic materials 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
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
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
- H10D1/696—Electrodes comprising multiple layers, e.g. comprising a barrier layer and a metal layer
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/01—Manufacture or treatment
- H10B12/02—Manufacture or treatment for one transistor one-capacitor [1T-1C] memory cells
- H10B12/03—Making the capacitor or connections thereto
- H10B12/033—Making the capacitor or connections thereto the capacitor extending over the transistor
- H10B12/0335—Making a connection between the transistor and the capacitor, e.g. plug
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/01—Manufacture or treatment
- H10D1/041—Manufacture or treatment of capacitors having no potential barriers
- H10D1/042—Manufacture or treatment of capacitors having no potential barriers using deposition processes to form electrode extensions
-
- 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
- H10D1/682—Capacitors having no potential barriers having dielectrics comprising perovskite structures
-
- 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
- H10D1/694—Electrodes comprising noble metals or noble metal oxides
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (7)
- 캐패시터 제조 방법에 있어서,반도체 기판 상에 형성된 층간절연막을 선택적으로 식각하여 콘택홀을 형성하는 단계;상기 콘택홀 내에 플러그, 확산방지막 및 금속산화물막으로 이루어지는 적층구조를 형성하는 단계;상기 금속산화물막과 접하도록 상기 층간절연막 상부에 물리기상증착법으로 제1 Pt막을 증착하고 전기도금법으로 제2 Pt막을 차례로 증착하여 캐패시터의 하부전극을 형성하는 단계;상기 하부전극 상에 유전막을 형성하는 단계; 및상기 유전막 상에 물리기상증착법으로 제3 Pt막을 증착하고 전기도금법으로 제4 Pt막을 차례로 증착하여 캐패시터의 상부전극을 형성하는 단계를 포함하는 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 적층구조를 형성하는 단계는,상기 콘택홀 내에 다결정 실리콘막 및 실리사이드층의 적층구조로 상기 플러그를 형성하는 단계;상기 플러그 상에 TiN, TiAlN 또는 TiSiN으로 상기 확산방지막을 형성하는 단계; 및상기 확산방지막 상에 IrO2 또는 RuO2로 상기 금속산화물막을 형성하는 단계를 포함하는 것을 특징으로 하는 캐패시터 제조 방법.
- 제 2 항에 있어서,상기 유전막을 (Ba,Sr)TiO3, Ta2O5막 또는 SrBi2Ta2O9막 중 어느 하나로 형성하는 것을 특징으로 하는 캐패시터 제조 방법.
- 제 3 항에 있어서,상기 제3 단계에서,실린더 구조의 하부전극을 형성하는 것을 특징으로 하는 캐패시터 제조 방법.
- 삭제
- 삭제
- 제 1 항에 있어서,상기 제1 Pt막 또는 상기 제3 Pt막을 상기 물리기상증착법 대신 화학기상증착법으로 증착하는 것을 특징으로 하는 캐패시터 제조 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990020936A KR100614576B1 (ko) | 1999-06-07 | 1999-06-07 | 캐패시터 제조 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990020936A KR100614576B1 (ko) | 1999-06-07 | 1999-06-07 | 캐패시터 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010001595A KR20010001595A (ko) | 2001-01-05 |
KR100614576B1 true KR100614576B1 (ko) | 2006-09-11 |
Family
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KR1019990020936A Expired - Fee Related KR100614576B1 (ko) | 1999-06-07 | 1999-06-07 | 캐패시터 제조 방법 |
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KR (1) | KR100614576B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100881728B1 (ko) | 2007-05-04 | 2009-02-06 | 주식회사 하이닉스반도체 | 루테늄전극을 구비한 반도체소자 및 그 제조 방법 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030002863A (ko) | 2001-06-30 | 2003-01-09 | 주식회사 하이닉스반도체 | 코어를 가진 플러그 구조 상의 강유전체 메모리소자 및 그제조방법 |
KR100498588B1 (ko) * | 2002-05-18 | 2005-07-01 | 주식회사 하이닉스반도체 | 산소확산배리어막 및 그를 구비한 반도체장치 |
KR101116351B1 (ko) * | 2003-12-29 | 2012-03-16 | 주식회사 하이닉스반도체 | 개선된 확산방지막을 구비한 반도체 소자 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990005449A (ko) * | 1997-06-30 | 1999-01-25 | 김영환 | 반도체 메모리 장치 및 그 제조 방법 |
KR19990016233A (ko) * | 1997-08-13 | 1999-03-05 | 윤종용 | 고유전체막을 갖는 반도체 장치의 커패시터 전극및 커패시터 형성방법 |
-
1999
- 1999-06-07 KR KR1019990020936A patent/KR100614576B1/ko not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990005449A (ko) * | 1997-06-30 | 1999-01-25 | 김영환 | 반도체 메모리 장치 및 그 제조 방법 |
KR19990016233A (ko) * | 1997-08-13 | 1999-03-05 | 윤종용 | 고유전체막을 갖는 반도체 장치의 커패시터 전극및 커패시터 형성방법 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100881728B1 (ko) | 2007-05-04 | 2009-02-06 | 주식회사 하이닉스반도체 | 루테늄전극을 구비한 반도체소자 및 그 제조 방법 |
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KR20010001595A (ko) | 2001-01-05 |
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