KR100691484B1 - 반도체소자의 플러그 제조 방법 - Google Patents
반도체소자의 플러그 제조 방법 Download PDFInfo
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- KR100691484B1 KR100691484B1 KR1020010038722A KR20010038722A KR100691484B1 KR 100691484 B1 KR100691484 B1 KR 100691484B1 KR 1020010038722 A KR1020010038722 A KR 1020010038722A KR 20010038722 A KR20010038722 A KR 20010038722A KR 100691484 B1 KR100691484 B1 KR 100691484B1
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- Prior art keywords
- plug
- conductive layer
- forming
- polysilicon
- etching
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 85
- 229920005591 polysilicon Polymers 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 45
- 239000010410 layer Substances 0.000 claims abstract description 33
- 239000011229 interlayer Substances 0.000 claims abstract description 29
- 238000005530 etching Methods 0.000 claims abstract description 19
- 238000005498 polishing Methods 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000005229 chemical vapour deposition Methods 0.000 claims description 9
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 9
- 238000001039 wet etching Methods 0.000 claims description 7
- 238000001020 plasma etching Methods 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 229910021341 titanium silicide Inorganic materials 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
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 claims description 2
- 229910021342 tungsten silicide Inorganic materials 0.000 claims description 2
- 239000011800 void material Substances 0.000 abstract description 5
- 239000003990 capacitor Substances 0.000 description 9
- 238000000151 deposition Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
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- 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
- H01L21/76897—Formation of self-aligned vias or contact plugs, i.e. involving a lithographically uncritical step
-
- 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
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
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- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32134—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by liquid etching only
-
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
- H01L21/32136—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas
-
- 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
- H01L21/76819—Smoothing of the dielectric
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Plasma & Fusion (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (7)
- 반도체소자의 플러그 형성 방법에 있어서,반도체기판상에 다수의 제 1 전도층패턴을 형성하는 단계;상기 제 1 전도층패턴상에 제 2 전도층을 형성하는 단계;상기 제 2 전도층을 선택적으로 이방성 식각하여 상기 제 1 전도층패턴 방향으로 상기 제 2 전도층으로 이루어진 다수의 플러그라인을 형성하는 단계;상기 플러그라인들을 선택적으로 식각하여 상기 제 2 전도층 식각후 발생된 잔막을 제거하는 단계;상기 잔막이 제거된 플러그라인을 포함한 전면에 층간절연막을 형성하는 단계; 및상기 플러그라인이 드러날때까지 상기 층간절연막을 화학적기계적연마하는 단계를 포함하여 이루어짐을 특징으로 하는 반도체소자의 플러그 형성 방법.
- 제 1 항에 있어서,상기 플러그라인들을 선택적으로 식각하는 단계는,습식식각 또는 플라즈마식각 중 어느 하나를 이용하여 이루어짐을 특징으로 하는 반도체소자의 플러그 형성 방법.
- 제 2 항에 있어서,상기 습식식각은 질산이나 암모니아를 포함하는 습식배스 또는 스핀에처에서 이루어짐을 특징으로 하는 반도체소자의 플러그 형성 방법.
- 제 3 항에 있어서,상기 습식식각은 18℃∼100℃의 온도에서 이루어짐을 특징으로 하는 반도체소자의 플러그 형성 방법.
- 제 1 항에 있어서,상기 제 2 전도층은 폴리실리콘, 티타늄나이트라이드, 텅스텐, 알루미늄, 텅스텐실리사이드, 티타늄실리사이드 또는 루테늄 중에서 선택된 어느 하나를 이용함을 특징으로 하는 반도체 소자의 플러그 형성 방법.
- 제 1 항에 있어서,상기 층간절연막은 고밀도 플라즈마-화학기상증착법에 의한 실리콘산화막을 이용하거나, 플라즈마 화학기상증착법에 의한 실리콘산화막 또는 화학기상증착법에 의한 실리콘산화막 중 어느 하나를 이용함을 특징으로 하는 반도체소자의 플러그 형성 방법.
- 제 1 항에 있어서,상기 제 1 전도층패턴은 게이트 또는 비트라인 중 어느 하나를 포함함을 특징으로 하는 반도체소자의 플러그 형성 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020010038722A KR100691484B1 (ko) | 2001-06-30 | 2001-06-30 | 반도체소자의 플러그 제조 방법 |
Applications Claiming Priority (1)
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KR1020010038722A KR100691484B1 (ko) | 2001-06-30 | 2001-06-30 | 반도체소자의 플러그 제조 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20030002892A KR20030002892A (ko) | 2003-01-09 |
KR100691484B1 true KR100691484B1 (ko) | 2007-03-09 |
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KR1020010038722A Expired - Fee Related KR100691484B1 (ko) | 2001-06-30 | 2001-06-30 | 반도체소자의 플러그 제조 방법 |
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KR (1) | KR100691484B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103117246B (zh) * | 2011-11-17 | 2015-09-02 | 中芯国际集成电路制造(上海)有限公司 | 金属互连结构的制作方法 |
CN111900167B (zh) * | 2020-06-28 | 2024-04-05 | 中国科学院微电子研究所 | 半导体结构及其制作方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020002577A (ko) * | 2000-06-30 | 2002-01-10 | 박종섭 | 반도체 소자의 콘택플러그 형성방법 |
KR20020002574A (ko) * | 2000-06-30 | 2002-01-10 | 박종섭 | 반도체 소자의 콘택플러그 형성방법 |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20020002577A (ko) * | 2000-06-30 | 2002-01-10 | 박종섭 | 반도체 소자의 콘택플러그 형성방법 |
KR20020002574A (ko) * | 2000-06-30 | 2002-01-10 | 박종섭 | 반도체 소자의 콘택플러그 형성방법 |
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KR20030002892A (ko) | 2003-01-09 |
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