KR100511128B1 - 반도체 소자의 금속 배선 형성 방법 - Google Patents
반도체 소자의 금속 배선 형성 방법 Download PDFInfo
- Publication number
- KR100511128B1 KR100511128B1 KR10-2003-0008423A KR20030008423A KR100511128B1 KR 100511128 B1 KR100511128 B1 KR 100511128B1 KR 20030008423 A KR20030008423 A KR 20030008423A KR 100511128 B1 KR100511128 B1 KR 100511128B1
- Authority
- KR
- South Korea
- Prior art keywords
- metal
- insulating film
- forming
- trench
- dielectric constant
- Prior art date
Links
- 239000002184 metal Substances 0.000 title claims abstract description 75
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 58
- 239000004065 semiconductor Substances 0.000 title claims abstract description 33
- 238000005530 etching Methods 0.000 claims abstract description 31
- 239000000758 substrate Substances 0.000 claims description 12
- 229920002120 photoresistant polymer Polymers 0.000 claims description 10
- 238000000059 patterning Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000001312 dry etching Methods 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 230000003071 parasitic effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 description 17
- 230000009977 dual effect Effects 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 7
- 238000000151 deposition Methods 0.000 description 6
- 238000005498 polishing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 244000132059 Carica parviflora Species 0.000 description 1
- 235000014653 Carica parviflora Nutrition 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002250 progressing effect Effects 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
- H01L21/76801—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
- H01L21/76807—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 for dual damascene structures
-
- 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
- H01L21/02—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
- H01L21/31144—Etching the insulating layers by chemical or physical means using masks
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (5)
- 소정의 반도체 구조물이 형성된 반도체 기판상에 절연막을 형성하는 단계;상기 절연막을 패터닝 하여 비아홀을 형성하는 단계;상기 비아홀을 금속으로 매립하여 금속 플러그를 형성하는 단계;상기 반도체 기판 상에 잔류하는 상기 절연막을 제거하여 상기 금속 플러그를 노출하는 단계;상기 노출된 금속 플러그의 높이 보다 높게 저 유전율의 절연막을 형성하는 단계;상기 저 유전율의 절연막을 패터닝 하여 트렌치를 형성하되, 상기 트렌치 하부에 상기 금속 플러그 상부가 소정 영역 돌출되도록 하는 단계; 및상기 트렌치를 금속으로 매립하여 금속 배선을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 금속 배선 형성 방법.
- 제 1 항에 있어서,상기 절연막은 질화막 계열의 물질막으로 형성하고, 상기 반도체 기판 상에 잔류하는 상기 절연막의 제거는 다운 플로우 방식의 등방성 식각을 실시하는 것을 특징으로 하는 반도체 소자의 금속 배선 형성 방법.
- 제 1 항에 있어서,상기 저 유전율의 절연막을 패터닝 하여 트렌치를 형성하는 단계는,상기 저 유전율의 절연막 상에 감광막 패턴을 형성하는 단계; 및상기 감광막 패턴을 식각마스크로 하는 플라즈마 건식 식각을 실시하여 상기 금속 플러그 상부가 소정 영역 돌출되도록 상기 저 유전율의 절연막 일부를 제거하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 금속 배선 형성 방법.
- 제 1 항에 있어서,상기 금속 플러그는 상기 반도체 구조물과 상기 상부 금속배선간의 기생 커패시턴스가 발생하지 않을 2000 내지 7500Å의 높이로 형성하는 것을 특징으로 하는 반도체 소자의 금속 배선 형성 방법.
- 제 1 항에 있어서,상기 금속 플러그 및 상기 금속 배선을 구리를 이용하여 형성하는 것을 특징으로 하는 반도체 소자의 금속 배선 형성 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0008423A KR100511128B1 (ko) | 2003-02-11 | 2003-02-11 | 반도체 소자의 금속 배선 형성 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0008423A KR100511128B1 (ko) | 2003-02-11 | 2003-02-11 | 반도체 소자의 금속 배선 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040072791A KR20040072791A (ko) | 2004-08-19 |
KR100511128B1 true KR100511128B1 (ko) | 2005-08-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2003-0008423A KR100511128B1 (ko) | 2003-02-11 | 2003-02-11 | 반도체 소자의 금속 배선 형성 방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100511128B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10867905B2 (en) * | 2017-11-30 | 2020-12-15 | Taiwan Semiconductor Manufacturing Company, Ltd. | Interconnect structures and methods of forming the same |
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2003
- 2003-02-11 KR KR10-2003-0008423A patent/KR100511128B1/ko active IP Right Grant
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Publication number | Publication date |
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KR20040072791A (ko) | 2004-08-19 |
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