KR20020092731A - 듀얼 다마센 공정을 이용한 금속 배선 형성 방법 - Google Patents
듀얼 다마센 공정을 이용한 금속 배선 형성 방법 Download PDFInfo
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- KR20020092731A KR20020092731A KR1020010031525A KR20010031525A KR20020092731A KR 20020092731 A KR20020092731 A KR 20020092731A KR 1020010031525 A KR1020010031525 A KR 1020010031525A KR 20010031525 A KR20010031525 A KR 20010031525A KR 20020092731 A KR20020092731 A KR 20020092731A
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- Prior art keywords
- forming
- layer
- overhang
- metal layer
- plug
- Prior art date
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 96
- 239000002184 metal Substances 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 61
- 230000009977 dual effect Effects 0.000 title claims abstract description 11
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 24
- 238000005530 etching Methods 0.000 claims abstract description 14
- 230000004888 barrier function Effects 0.000 claims abstract description 12
- 238000009713 electroplating Methods 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 73
- 239000000463 material Substances 0.000 claims description 18
- 238000005240 physical vapour deposition Methods 0.000 claims description 11
- 239000011229 interlayer Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 8
- 239000003792 electrolyte Substances 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 4
- 238000000866 electrolytic etching Methods 0.000 claims description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 238000001552 radio frequency sputter deposition Methods 0.000 claims description 2
- 239000002355 dual-layer Substances 0.000 claims 1
- 238000000059 patterning Methods 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000001020 plasma etching Methods 0.000 abstract description 3
- 239000010949 copper Substances 0.000 description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 14
- 229910052802 copper Inorganic materials 0.000 description 13
- 239000004065 semiconductor Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000027756 respiratory electron transport chain Effects 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- SEJUQQOPVAUETF-QHLBDZCJSA-N (2r,6r,11s)-3-(cyclopropylmethyl)-6-ethyl-8-hydroxy-11-methyl-3,4,5,6-tetrahydro-2,6-methano-3-benzazocin-1(2h)-one Chemical compound C([C@@]1([C@@H]([C@@H]2C(=O)C=3C1=CC(O)=CC=3)C)CC)CN2CC1CC1 SEJUQQOPVAUETF-QHLBDZCJSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910008482 TiSiN Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000011800 void material 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
- H01L21/76897—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
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/02068—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers
-
- 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
- H01L21/76838—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
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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)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (7)
- 하부 금속 배선을 포함하는 기판상에 층간 절연층을 형성하고 선택적으로 패터닝하여 플러그 형성 영역과 상부 금속 배선 형성 영역을 정의하는 단계;전면에 베리어 금속층,시드 금속층을 형성하는 단계;상기 시드 금속층의 일부를 제거하여 플러그 형성 영역의 상단 영역에서 발생한 오버행을 제거하는 단계;상기 플러그 형성 영역과 상부 금속 배선 형성 영역을 매립하도록 배선 형성용 물질층을 형성하고 평탄화하는 단계를 포함하는 것을 특징으로 하는 듀얼 다마센 공정을 이용한 금속 배선 형성 방법.
- 제 1 항에 있어서, 베리어 금속층을 RF 스퍼터링 세정 또는 수소 환원 세정 공정에 의하여 하부 금속 배선의 표면을 세정한후에 이온화 PVD 공정으로 Ta 또는 TaN을 100 ~ 800Å의 두께로 증착하여 형성하는 것을 특징으로 하는 듀얼 다마센 공정을 이용한 금속 배선 형성 방법.
- 제 1 항에 있어서, 시드 금속층을 Cu를 사용하여 이온화 PVD 공정으로 500 ~ 2000Å의 두께로 형성하는 것을 특징으로 하는 듀얼 다마센 공정을 이용한 금속 배선 형성 방법.
- 제 1 항에 있어서, 시드 금속층의 오버행을 염소 기체를 사용하여 등방성으로 플라즈마 식각 처리하여 오버행 발생 부분에서의 식각량이 비아 내부의 식각량보다 큰 것을 이용하여 제거하는 것을 특징으로 하는 듀얼 다마센 공정을 이용한 금속 배선 형성 방법.
- 제 1 항에 있어서, 시드 금속층의 오버행을 전해액을 순환시키면서 오버행 발생 부분의 식각량이 비아 내부의 식각량보다 큰 것을 이용한 전해 에칭을 사용하여 제거하는 것을 특징으로 하는 듀얼 다마센 공정을 이용한 금속 배선 형성 방법.
- 제 1 항 또는 제 5 항에 있어서, 배선 형성용 물질층의 매립을 전해 도금법으로 진행하고 이때의 전해액과 시드 금속층의 오버행을 제거하기 위한 전해 에칭시의 전해액을 동일한 것을 사용하는 것을 특징으로 하는 듀얼 다마센 공정을 이용한 금속 배선 형성 방법.
- 제 1 항에 있어서, 배선 형성용 물질층의 매립후에 200 ~ 400℃의 온도에서 열처리 공정을 진행하여 결정 구조를 안정화하는 단계를 더 포함하는 것을 특징으로 하는 듀얼 다마센 공정을 이용한 금속 배선 형성 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020010031525A KR100720402B1 (ko) | 2001-06-05 | 2001-06-05 | 듀얼 다마센 공정을 이용한 금속 배선 형성 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020010031525A KR100720402B1 (ko) | 2001-06-05 | 2001-06-05 | 듀얼 다마센 공정을 이용한 금속 배선 형성 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20020092731A true KR20020092731A (ko) | 2002-12-12 |
KR100720402B1 KR100720402B1 (ko) | 2007-05-22 |
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KR1020010031525A KR100720402B1 (ko) | 2001-06-05 | 2001-06-05 | 듀얼 다마센 공정을 이용한 금속 배선 형성 방법 |
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KR (1) | KR100720402B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100791078B1 (ko) * | 2006-09-25 | 2008-01-02 | 삼성전자주식회사 | 전기 도금법을 사용하여 리세스된 영역을 채우는 금속배선을 형성하는 방법 |
KR101034147B1 (ko) * | 2004-12-31 | 2011-05-13 | 주식회사 현대오토넷 | 차량용 오디오 시스템에서 핸들 리모콘 제공 장치 및 방법 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100252846B1 (ko) * | 1997-12-26 | 2000-05-01 | 김영환 | 반도체소자의 배선 및 그의 제조방법 |
KR100291415B1 (ko) * | 1998-05-08 | 2001-10-25 | 김영환 | 반도체장치의콘택형성방법 |
-
2001
- 2001-06-05 KR KR1020010031525A patent/KR100720402B1/ko active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101034147B1 (ko) * | 2004-12-31 | 2011-05-13 | 주식회사 현대오토넷 | 차량용 오디오 시스템에서 핸들 리모콘 제공 장치 및 방법 |
KR100791078B1 (ko) * | 2006-09-25 | 2008-01-02 | 삼성전자주식회사 | 전기 도금법을 사용하여 리세스된 영역을 채우는 금속배선을 형성하는 방법 |
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Publication number | Publication date |
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KR100720402B1 (ko) | 2007-05-22 |
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