KR100522211B1 - 반도체장치 및 그 제조방법 - Google Patents
반도체장치 및 그 제조방법 Download PDFInfo
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- KR100522211B1 KR100522211B1 KR10-2000-0028573A KR20000028573A KR100522211B1 KR 100522211 B1 KR100522211 B1 KR 100522211B1 KR 20000028573 A KR20000028573 A KR 20000028573A KR 100522211 B1 KR100522211 B1 KR 100522211B1
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- insulating film
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 69
- 238000004519 manufacturing process Methods 0.000 title description 22
- 239000003990 capacitor Substances 0.000 claims abstract description 195
- 230000001681 protective effect Effects 0.000 claims abstract description 123
- 230000005669 field effect Effects 0.000 claims abstract description 60
- 239000012535 impurity Substances 0.000 claims abstract description 55
- 238000009792 diffusion process Methods 0.000 claims abstract description 51
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 33
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 229910052739 hydrogen Inorganic materials 0.000 claims description 51
- 239000001257 hydrogen Substances 0.000 claims description 51
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 29
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 26
- 230000004888 barrier function Effects 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 14
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052721 tungsten Inorganic materials 0.000 claims description 10
- 239000010937 tungsten Substances 0.000 claims description 10
- 229910052797 bismuth Inorganic materials 0.000 claims description 9
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 9
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 6
- 229920005591 polysilicon Polymers 0.000 claims description 6
- 238000000151 deposition Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 229910052454 barium strontium titanate Inorganic materials 0.000 claims description 3
- 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 claims description 3
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 56
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 38
- 229910052697 platinum Inorganic materials 0.000 description 28
- 239000010936 titanium Substances 0.000 description 25
- 229910052719 titanium Inorganic materials 0.000 description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 238000001312 dry etching Methods 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 238000013500 data storage Methods 0.000 description 8
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 8
- 229910000457 iridium oxide Inorganic materials 0.000 description 8
- 238000002955 isolation Methods 0.000 description 8
- 238000000059 patterning Methods 0.000 description 8
- 229910052581 Si3N4 Inorganic materials 0.000 description 7
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 7
- 238000004544 sputter deposition Methods 0.000 description 7
- 229910052582 BN Inorganic materials 0.000 description 6
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 6
- 238000003475 lamination Methods 0.000 description 6
- 125000002524 organometallic group Chemical group 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D89/00—Aspects of integrated devices not covered by groups H10D84/00 - H10D88/00
-
- 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
- H10B12/09—Manufacture or treatment with simultaneous manufacture of the peripheral circuit region and memory cells
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B53/00—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors
- H10B53/30—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors characterised by the memory core region
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B53/00—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors
- H10B53/40—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors characterised by the peripheral circuit region
-
- 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
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (26)
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- 제 1 전계효과형 트랜지스터 및 제 2 전계효과형 트랜지스터가 형성되어 있는 반도체기판 상에 퇴적된 보호절연막과,상기 보호절연막 상에 아래로부터 차례로 형성된, 용량하부전극, 절연성 금속산화물로 이루어진 용량절연막 및 용량상부전극으로 구성되는 용량소자와,상기 보호절연막에 형성되고, 상기 제 1 전계효과형 트랜지스터의 소스영역 또는 드레인영역이 되는 불순물 확산층과 상기 용량하부전극을 직접 접속하는 제 1 컨택트 플러그와,상기 보호절연막에 형성되고, 상기 제 2 전계효과형 트랜지스터의 소스영역 또는 드레인영역이 되는 불순물 확산층과 상기 용량상부전극을 접속하는 제 2 컨택트 플러그를 구비하는 것을 특징으로 하는 반도체장치.
- 제 13항에 있어서,상기 제 2 전계효과형 트랜지스터의 소스영역 또는 드레인영역이 되는 불순물 확산층과 상기 용량상부전극은 상기 제 2 컨택트 플러그에 의해 직접 접속되어 있는 것을 특징으로 하는 반도체장치.
- 제 13항에 있어서,상기 용량절연막은 상기 용량하부전극과 같은 형상으로 형성되어 있고,상기 용량하부전극 및 용량절연막의 측면에 형성된 절연성 측벽을 더 구비하고,상기 용량상부전극은 상기 용량절연막 및 측벽 상에 형성되어 있는 것을 특징으로 하는 반도체장치.
- 제 15항에 있어서,상기 측벽은 산화규소로 이루어진 것을 특징으로 하는 반도체장치.
- 제 13항에 있어서,상기 용량하부전극은 상기 보호절연막 상에 복수개 형성되어 있고,상기 복수개의 용량하부전극끼리의 사이에 형성된 절연막을 더 구비하며,상기 용량절연막은 상기 복수개의 용량하부전극 및 상기 절연막 상에 걸치도록 형성되어 있는 것을 특징으로 하는 반도체장치.
- 제 17항에 있어서,상기 절연막은 산화규소로 이루어진 것을 특징으로 하는 반도체장치.
- 제 13항에 있어서,상기 용량상부전극을 완전히 덮는 수소배리어막이 더 구비되어 있는 것을 특징으로 하는 반도체장치.
- 제 13항에 있어서,상기 제 1 컨택트 플러그 및 제 2 컨택트 플러그는 폴리실리콘 또는 텅스텐으로 이루어진 것을 특징으로 하는 반도체장치.
- 제 13항에 있어서,상기 용량절연막은 비스무스층 형상 퍼로브스카이트구조를 갖는 강유전체, 티탄산 지르콘납, 티탄산 스트론튬바륨 또는 5산화탄탈로 이루어진 것을 특징으로 하는 반도체장치.
- 제 1 전계효과형 트랜지스터 및 제 2 전계효과형 트랜지스터가 형성되어 있는 반도체기판 상에 보호절연막을 퇴적하는 공정과,상기 보호절연막에 상기 제 1 전계효과형 트랜지스터의 소스영역 또는 드레인영역이 되는 불순물 확산층과 접속하는 제 1 컨택트 플러그 및 상기 제 2 전계효과형 트랜지스터의 소스영역 또는 드레인영역이 되는 불순물 확산층과 접속하는 제 2 컨택트 플러그를 형성하는 공정과,상기 보호절연막 상에 상기 제 1 컨택트 플러그와 직접 접속하는 용량하부전극을 형성하는 공정과,상기 용량하부전극 상에 절연성 금속산화물로 이루어진 용량절연막을 형성하는 공정과,상기 용량절연막 상에 둘레부가 상기 보호절연막 상에 위치하고, 상기 둘레부에서 상기 제 2 컨택트 플러그와 접속하는 용량상부전극을 형성하는 공정을 구비하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제 22항에 있어서,상기 제 2 컨택트 플러그와 상기 용량상부전극은 직접 접속되어 있는 것을 특징으로 하는 반도체장치의 제조방법.
- 제 22항에 있어서,상기 용량상부전극을 덮는 수소배리어막을 형성하는 공정을 더 구비하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제 22항에 있어서,상기 용량절연막을 형성하는 공정은 상기 용량절연막을 상기 용량하부전극과 같은 형상으로 형성하는 공정을 포함하며,상기 용량절연막을 형성하는 공정과 상기 용량상부전극을 형성하는 공정 사이에 상기 용량하부전극 및 용량절연막의 측면에 절연성 측벽을 형성하는 공정을 더 구비하며,상기 용량상부전극을 형성하는 공정은 상기 용량상부전극을 상기 용량절연막 및 측벽 상에 형성하는 공정을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제 22항에 있어서,상기 용량하부전극을 형성하는 공정은 상기 보호절연막 상에 복수개의 용량하부전극을 형성하는 공정을 포함하며,상기 용량하부전극을 형성하는 공정과 상기 용량절연막을 형성하는 공정 사이에 상기 복수개의 용량하부전극끼리의 사이에 절연막을 형성하는 공정을 더 구비하며,상기 용량절연막을 형성하는 공정은 상기 용량절연막을 상기 복수개의 용량하부전극 및 절연막 상에 걸치도록 형성하는 공정을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP???11-146103 | 1999-05-26 | ||
JP14610399 | 1999-05-26 |
Publications (2)
Publication Number | Publication Date |
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KR20010020905A KR20010020905A (ko) | 2001-03-15 |
KR100522211B1 true KR100522211B1 (ko) | 2005-10-14 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR10-2000-0028573A Expired - Fee Related KR100522211B1 (ko) | 1999-05-26 | 2000-05-26 | 반도체장치 및 그 제조방법 |
Country Status (6)
Country | Link |
---|---|
US (5) | US6441420B1 (ko) |
EP (1) | EP1056128A3 (ko) |
JP (2) | JP3759859B2 (ko) |
KR (1) | KR100522211B1 (ko) |
CN (1) | CN1170316C (ko) |
TW (1) | TW454330B (ko) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4829678B2 (ja) * | 2000-10-17 | 2011-12-07 | パナソニック株式会社 | 強誘電体メモリ及びその製造方法 |
US6958508B2 (en) * | 2000-10-17 | 2005-10-25 | Matsushita Electric Industrial Co., Ltd. | Ferroelectric memory having ferroelectric capacitor insulative film |
JP3833887B2 (ja) * | 2000-10-30 | 2006-10-18 | 株式会社東芝 | 強誘電体メモリ及びその製造方法 |
KR100395766B1 (ko) * | 2001-02-12 | 2003-08-25 | 삼성전자주식회사 | 강유전체 기억 소자 및 그 형성 방법 |
KR20020082549A (ko) * | 2001-04-24 | 2002-10-31 | 주식회사 하이닉스반도체 | 고용량 엠아이엠 캐패시터 제조방법 |
US6730951B2 (en) | 2001-06-25 | 2004-05-04 | Matsushita Electric Industrial Co., Ltd. | Capacitor, semiconductor memory device, and method for manufacturing the same |
EP1298730A3 (en) * | 2001-09-27 | 2007-12-26 | Matsushita Electric Industrial Co., Ltd. | Ferroelectric memory and method for fabricating the same |
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Also Published As
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JP3759859B2 (ja) | 2006-03-29 |
US6756282B2 (en) | 2004-06-29 |
US20060065918A1 (en) | 2006-03-30 |
US20020149045A1 (en) | 2002-10-17 |
JP2001044376A (ja) | 2001-02-16 |
US7531863B2 (en) | 2009-05-12 |
JP2005277443A (ja) | 2005-10-06 |
CN1275808A (zh) | 2000-12-06 |
USRE41625E1 (en) | 2010-09-07 |
CN1170316C (zh) | 2004-10-06 |
US6441420B1 (en) | 2002-08-27 |
US20040229429A1 (en) | 2004-11-18 |
EP1056128A3 (en) | 2003-12-03 |
KR20010020905A (ko) | 2001-03-15 |
TW454330B (en) | 2001-09-11 |
EP1056128A2 (en) | 2000-11-29 |
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