KR100947565B1 - 반도체 소자의 mim커패시터 형성 방법 - Google Patents
반도체 소자의 mim커패시터 형성 방법 Download PDFInfo
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- KR100947565B1 KR100947565B1 KR1020020086142A KR20020086142A KR100947565B1 KR 100947565 B1 KR100947565 B1 KR 100947565B1 KR 1020020086142 A KR1020020086142 A KR 1020020086142A KR 20020086142 A KR20020086142 A KR 20020086142A KR 100947565 B1 KR100947565 B1 KR 100947565B1
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- South Korea
- Prior art keywords
- capacitor
- forming
- material layer
- upper electrode
- sacrificial spacer
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000004065 semiconductor Substances 0.000 title claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 125000006850 spacer group Chemical group 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 19
- 238000005530 etching Methods 0.000 claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 13
- 239000003989 dielectric material Substances 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 8
- 238000000059 patterning Methods 0.000 claims description 5
- 238000001312 dry etching Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910018557 Si O Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 239000010410 layer Substances 0.000 description 24
- 239000012212 insulator Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- -1 Cl 2 and BCl 3 Chemical compound 0.000 description 1
- 229910017855 NH 4 F Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/75—Electrodes comprising two or more layers, e.g. comprising a barrier layer and a metal layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
- 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
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76829—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (5)
- MIM 커패시터 형성 영역과 금속 배선 형성 영역을 갖는 반도체 기판상에 금속 배선 형성용 물질층,유전 물질층,상부 전극 형성용 물질층을 형성하는 단계;상기 상부 전극 형성용 물질층을 선택적으로 패터닝하여 커패시터 상부 전극을 형성하는 단계;커패시터 상부 전극의 측면에 희생 스페이서를 형성하는 단계;상기 유전 물질층을 식각하여 커패시터 유전체층을 형성하는 단계;상기 유전체층 형성시에 발생한 금속성 폴리머와 희생 스페이서를 동시에 제거하는 단계;상기 금속 배선 형성용 물질층을 선택적으로 식각하여 커패시터 하부 전극과 금속 배선을 동시에 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 MIM 커패시터 형성 방법.
- 제 1 항에 있어서, 상기 커패시터 상부 전극과 하부 전극을 TiN, TaN 또는 텅스턴의 금속 물질, 또는 TiN, Ti, Ta 또는 TaN의 물질을 2중 복합구조로 적층하여 형성하는 것을 특징으로 하는 반도체 소자의 MIM 커패시터 형성 방법.
- 제 1 항에 있어서, 커패시터 상부 전극을 상부 전극 형성용 물질층을 Cl2/BCl3 등의 식각 가스를 이용하여 건식 식각 공정으로 선택적으로 패터닝하여 형성하는 것을 특징으로 하는 반도체 소자의 MIM 커패시터 형성 방법.
- 제 1 항에 있어서, 상기 희생 스페이서를 PE-TEOS 또는 LTO(Low Temperature Oxide) 또는 Si-O 결합구조에 불소, 수소 또는 탄소가 부분적으로 결합되어 있는 유전 물질을 사용하여 형성하는 것을 특징으로 하는 반도체 소자의 MIM 커패시터 형성 방법.
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KR1020020086142A KR100947565B1 (ko) | 2002-12-28 | 2002-12-28 | 반도체 소자의 mim커패시터 형성 방법 |
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KR1020020086142A KR100947565B1 (ko) | 2002-12-28 | 2002-12-28 | 반도체 소자의 mim커패시터 형성 방법 |
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Publication Number | Publication Date |
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KR20040059408A KR20040059408A (ko) | 2004-07-05 |
KR100947565B1 true KR100947565B1 (ko) | 2010-03-15 |
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KR1020020086142A KR100947565B1 (ko) | 2002-12-28 | 2002-12-28 | 반도체 소자의 mim커패시터 형성 방법 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990049367A (ko) * | 1997-12-12 | 1999-07-05 | 윤종용 | 반도체장치의 커패시터 제조방법 |
KR20010003343A (ko) * | 1999-06-22 | 2001-01-15 | 김영환 | 반도체 장치의 mim형 아날로그 커패시터 제조방법 |
JP2002353328A (ja) * | 2001-05-30 | 2002-12-06 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
-
2002
- 2002-12-28 KR KR1020020086142A patent/KR100947565B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990049367A (ko) * | 1997-12-12 | 1999-07-05 | 윤종용 | 반도체장치의 커패시터 제조방법 |
KR20010003343A (ko) * | 1999-06-22 | 2001-01-15 | 김영환 | 반도체 장치의 mim형 아날로그 커패시터 제조방법 |
JP2002353328A (ja) * | 2001-05-30 | 2002-12-06 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
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KR20040059408A (ko) | 2004-07-05 |
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