KR100539443B1 - 반도체 소자의 금속배선 형성방법 - Google Patents
반도체 소자의 금속배선 형성방법 Download PDFInfo
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- KR100539443B1 KR100539443B1 KR10-2003-0044937A KR20030044937A KR100539443B1 KR 100539443 B1 KR100539443 B1 KR 100539443B1 KR 20030044937 A KR20030044937 A KR 20030044937A KR 100539443 B1 KR100539443 B1 KR 100539443B1
- Authority
- KR
- South Korea
- Prior art keywords
- forming
- interlayer insulating
- metal wiring
- insulating film
- layer
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 78
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 73
- 239000002184 metal Substances 0.000 title claims abstract description 73
- 239000004065 semiconductor Substances 0.000 title claims abstract description 23
- 125000006850 spacer group Chemical group 0.000 claims abstract description 21
- 239000010410 layer Substances 0.000 claims description 69
- 239000011229 interlayer Substances 0.000 claims description 42
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 238000001312 dry etching Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 229910004166 TaN Inorganic materials 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 238000001039 wet etching Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000000059 patterning Methods 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 239000006227 byproduct Substances 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract description 5
- 230000004888 barrier function Effects 0.000 description 20
- 238000009792 diffusion process Methods 0.000 description 20
- 238000005530 etching Methods 0.000 description 7
- 229910052814 silicon oxide Inorganic materials 0.000 description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
- 239000011737 fluorine Substances 0.000 description 6
- 238000000206 photolithography Methods 0.000 description 5
- 238000001465 metallisation Methods 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 229910019001 CoSi Inorganic materials 0.000 description 2
- 229910004491 TaAlN Inorganic materials 0.000 description 2
- 229910004200 TaSiN Inorganic materials 0.000 description 2
- 229910008482 TiSiN Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000005368 silicate glass Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- H01L21/76838—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 conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
-
- 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
-
- 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
- H01L21/76802—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 by forming openings in dielectrics
-
- 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
- H01L21/76838—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 conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
Landscapes
- 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)
- Inorganic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (9)
- (a) 제1 층간절연막을 포함한 반도체 구조물층이 형성된 반도체 기판이 제공되는 단계;(b) 다마신 공정으로 상기 제 1 층간 절연막이 패터닝되고, 패터닝된 상기 제 1 층간 절연막이 매립되도록 구리 금속층이 형성되어 하부 금속배선이 형성되는 단계;(c) 상기 하부 금속배선의 양측벽의 일부가 노출되도록 BOE를 이용한 습식 식각 공정을 통해 상기 제 1 층간 절연막이 리세스(recess)되는 단계;(d) 상기 (c) 단계에서 노출되는 상기 하부 금속배선의 양측벽에 스페이서가 형성되는 단계;(e) 전체 구조 상부에 제2 층간절연막이 증착되는 단계; 및(f) 상기 제2 층간절연막이 식각되고, 식각된 상기 제2 층간절연막이 매립되도록 상부 금속배선이 형성되는 단계를 포함하는 금속배선 형성방법.
- 삭제
- 제 1 항에 있어서,상기 (c) 단계에서 리세스되는 상기 제1 층간절연막의 두께가 50Å 내지 1500Å인 금속배선 형성방법.
- 제 1 항에 있어서,상기 스페이서용 물질이 Ti, TiN, Ta, TaN, W 및 Al 중 어느 하나로 형성되는 금속배선 형성방법.
- 제 1 항에 있어서,상기 스페이서용 물질이 적어도 10-3/ohm.m 이상의 전기 전도도를 갖는 금속물질로 형성되는 금속배선 형성방법.
- 제 1 항에 있어서,상기 스페이서용 물질이 50Å 내지 300Å의 두께로 증착되는 금속배선 형성방법.
- 제 1 항에 있어서,상기 스페이서는 블랭켓 방식으로 건식식각공정을 통해 형성되는 금속배선 형성방법.
- 제 7 항에 있어서,상기 건식식각공정이 BCl3, Cl2, SF6, HBr의 할로겐 족 원소가 포함된 가스를 주 가스로 하고, N2, O2, Ar 또는 He의 첨가가스를 사용하는 금속배선 형성방법.
- 제 1 항에 있어서,상기 (d) 단계후 상기 스페이서 형성공정시 생성되는 부산물로 인한 금속배선 간의 브릿지가 발생되는 것을 방지하기 위하여 세정공정이 실시되는 단계를 더 포함하는 금속배선 형성방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0044937A KR100539443B1 (ko) | 2003-07-03 | 2003-07-03 | 반도체 소자의 금속배선 형성방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0044937A KR100539443B1 (ko) | 2003-07-03 | 2003-07-03 | 반도체 소자의 금속배선 형성방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050004671A KR20050004671A (ko) | 2005-01-12 |
KR100539443B1 true KR100539443B1 (ko) | 2005-12-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR10-2003-0044937A KR100539443B1 (ko) | 2003-07-03 | 2003-07-03 | 반도체 소자의 금속배선 형성방법 |
Country Status (1)
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KR (1) | KR100539443B1 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100695995B1 (ko) * | 2005-12-21 | 2007-03-16 | 매그나칩 반도체 유한회사 | 반도체 소자 및 그 제조방법 |
KR100799077B1 (ko) * | 2006-12-11 | 2008-01-28 | 동부일렉트로닉스 주식회사 | 금속 배선 및 그 형성 방법 |
KR20220034337A (ko) | 2020-09-11 | 2022-03-18 | 삼성전자주식회사 | 반도체 장치 |
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2003
- 2003-07-03 KR KR10-2003-0044937A patent/KR100539443B1/ko active IP Right Grant
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KR20050004671A (ko) | 2005-01-12 |
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