KR0165408B1 - 고유전막 캐패시터의 제조방법 - Google Patents
고유전막 캐패시터의 제조방법 Download PDFInfo
- Publication number
- KR0165408B1 KR0165408B1 KR1019950020393A KR19950020393A KR0165408B1 KR 0165408 B1 KR0165408 B1 KR 0165408B1 KR 1019950020393 A KR1019950020393 A KR 1019950020393A KR 19950020393 A KR19950020393 A KR 19950020393A KR 0165408 B1 KR0165408 B1 KR 0165408B1
- Authority
- KR
- South Korea
- Prior art keywords
- manufacturing
- lower electrode
- dielectric film
- high dielectric
- capacitor
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 239000010410 layer Substances 0.000 claims abstract description 13
- 239000010409 thin film Substances 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 239000011229 interlayer Substances 0.000 claims abstract description 4
- 239000010408 film Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 9
- 229910052697 platinum Inorganic materials 0.000 claims description 9
- 239000012298 atmosphere Substances 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims 2
- 229910052786 argon Inorganic materials 0.000 claims 1
- 229910052741 iridium Inorganic materials 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000012299 nitrogen atmosphere Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 19
- 230000008569 process Effects 0.000 description 18
- 230000008859 change Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910015801 BaSrTiO Inorganic materials 0.000 description 1
- 229910019899 RuO Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 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
- 238000000059 patterning Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 230000010287 polarization Effects 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
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005728 strengthening 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
- 230000009466 transformation Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (6)
- 고집적 반도체장치의 고유전막 캐패시터 제조 방법에 있어서, 트랜지스터들이 형성되어 있는 소정 기판상의 층간절연막 위에 하부전극을 형성하는 단계; 상기 하부전극 상에 페로브스카이트(perovskite)구조의 강유전 박막을 형성하는 단계; 상기 강유전 박막 상에 상부전극을 형성하는 단계; 및 상기 결과물을 질소와 아르곤 등과 같은 비산화성 분위기에서 700∼800℃의 온도로 열처리하는 단계를 구비하는 것을 특징으로 하는 고유전막 캐패시터 제조방법.
- 제1항에 있어서, 상기 하부전극의 부착력 향상 및 하지막과의 상호 확산을 방지하기 위하여, 상기 층간절연막과 상기 하부전극과의 계면에 Ti, TiN 또는 Ta으로 이루어진 장벽층을 형성하는 단계를 더 구비하는 것을 특징으로 하는 고유전막 캐패시터의 제조 방법.
- 제1항에 있어서, 상기 하부전극의 구성물질로서, 500∼3000Å 두께의 Pt, Ru, Ir, 및 IrO2으로 이루어진 일군의 그룹 가운데 어느 하나의 비산화성 금속을 사용하는 것을 특징으로 하는 고유전막 캐패시터 제조 방법.
- 제1항에 있어서, 상기 페로브스카이트(perovskite) 구조의 강유전 박막으로 BST, STO, PZT 및 PLZT중의 어느 하나를 사용하는 것을 특징으로 하는 고유전막 캐패시터의 제조 방법.
- 제1항 및 제4항중의 어느 한 항에 있어서, 상기 강유전 박막이 600∼660℃ 에서의 스퍼터링 증착방법에 의해 200∼500Å 두께로 증착되는 것을 특징으로 하는 고유전막 캐패시터 제조 방법.
- 제1항에 있어서, 상기 열처리 시간이 30분인 것을 특징으로 하는 고유전막 캐패시터 제조 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950020393A KR0165408B1 (ko) | 1995-07-11 | 1995-07-11 | 고유전막 캐패시터의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950020393A KR0165408B1 (ko) | 1995-07-11 | 1995-07-11 | 고유전막 캐패시터의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970008551A KR970008551A (ko) | 1997-02-24 |
KR0165408B1 true KR0165408B1 (ko) | 1998-12-15 |
Family
ID=19420371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950020393A KR0165408B1 (ko) | 1995-07-11 | 1995-07-11 | 고유전막 캐패시터의 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0165408B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000025577A (ko) * | 1998-10-13 | 2000-05-06 | 윤종용 | 질소 분위기 열처리에 의한 pzt 캐패시터의 제조 방법 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100477394B1 (ko) * | 2000-11-01 | 2005-03-17 | 인터내셔널 비지네스 머신즈 코포레이션 | 저 동작 전압을 요하는 유기-무기 하이브리드 반도체를갖춘 박막 전계 효과 트랜지스터 |
JP4282245B2 (ja) * | 2001-01-31 | 2009-06-17 | 富士通株式会社 | 容量素子及びその製造方法並びに半導体装置 |
-
1995
- 1995-07-11 KR KR1019950020393A patent/KR0165408B1/ko not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000025577A (ko) * | 1998-10-13 | 2000-05-06 | 윤종용 | 질소 분위기 열처리에 의한 pzt 캐패시터의 제조 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR970008551A (ko) | 1997-02-24 |
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