KR100744801B1 - 반도체 장치의 금속배선 형성방법 - Google Patents
반도체 장치의 금속배선 형성방법 Download PDFInfo
- Publication number
- KR100744801B1 KR100744801B1 KR1020050128230A KR20050128230A KR100744801B1 KR 100744801 B1 KR100744801 B1 KR 100744801B1 KR 1020050128230 A KR1020050128230 A KR 1020050128230A KR 20050128230 A KR20050128230 A KR 20050128230A KR 100744801 B1 KR100744801 B1 KR 100744801B1
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- South Korea
- Prior art keywords
- layer
- interlayer insulating
- etching
- forming
- hard mask
- Prior art date
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- 239000002184 metal Substances 0.000 title claims abstract description 56
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 56
- 239000004065 semiconductor Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000010410 layer Substances 0.000 claims abstract description 94
- 238000005530 etching Methods 0.000 claims abstract description 44
- 239000011229 interlayer Substances 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 40
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 39
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000005751 Copper oxide Substances 0.000 claims abstract description 14
- 229910000431 copper oxide Inorganic materials 0.000 claims abstract description 14
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000151 deposition Methods 0.000 claims abstract description 6
- 238000001039 wet etching Methods 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 230000009977 dual effect Effects 0.000 abstract description 4
- 238000001465 metallisation Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000001020 plasma etching Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
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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
- H01L21/76814—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 post-treatment or after-treatment, e.g. cleaning or removal of oxides on underlying conductors
-
- 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
- H01L21/70—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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
온도 | E/R of Ti | E/R of CuO | E/R of FSG |
48 | 190 | 1000 | 4 |
58 | 360 | 1200 | 5 |
Claims (3)
- a) 소자형성층의 상부에 하부 금속배선과 그 하부 금속배선 상에 캐핑층을 형성한 후, 그 상부전면에 층간절연막을 증착하는 단계;b) 상기 층간절연막의 상부에 하드마스크층 패턴을 형성하여 그 층간절연막의 일부를 노출시키는 단계;c) 상기 b) 단계의 결과물 상에 포토레지스트 패턴을 형성하여 상기 노출된 층간절연막의 일부를 선택적으로 노출시키는 단계;d) 상기 포토레지스 패턴을 식각마스크로 층간절연막의 상부일부를 식각하여 층간절연막에 단차를 생성하는 단계;e) 상기 포토레지스트 패턴을 제거한 후, 하드마스크층에 의해 노출된 층간절연막을 식각하여 상기 캐핑층의 상부를 노출시키는 이중 상감 식각영역을 형성하는 단계; 및f) 습식식각법으로 상기 하드마스크층을 식각하는 동시에 상기 이중 상감 식각영역에 발생될 수 있는 구리 산화막을 제거하는 단계를 포함하는 반도체 장치의 금속배선 형성방법.
- 제1항에 있어서,상기 하드마스크층은 Ti 또는 Ti와 TiN의 적층막인 것을 특징으로 하는 반도 체 장치의 금속배선 형성방법.
- 제1항에 있어서,상기 f) 단계의 습식식각법은,식각액으로 70 내지 75 중량비의 과염소산과 25 내지 30 중량비의 물이 혼합된 과염소산과 물의 혼합용액에 100 내지 500ppm의 HF 농도를 가지는 HF 용액을 첨가한 식각액을 사용하는 것을 특징으로 하는 반도체 장치의 금속배선 형성방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050128230A KR100744801B1 (ko) | 2005-12-22 | 2005-12-22 | 반도체 장치의 금속배선 형성방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050128230A KR100744801B1 (ko) | 2005-12-22 | 2005-12-22 | 반도체 장치의 금속배선 형성방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20070066756A KR20070066756A (ko) | 2007-06-27 |
KR100744801B1 true KR100744801B1 (ko) | 2007-08-01 |
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KR1020050128230A KR100744801B1 (ko) | 2005-12-22 | 2005-12-22 | 반도체 장치의 금속배선 형성방법 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100821814B1 (ko) * | 2006-12-06 | 2008-04-14 | 동부일렉트로닉스 주식회사 | 구리 상감법에 의한 금속배선 형성방법 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040009252A (ko) * | 2002-07-23 | 2004-01-31 | 삼성전자주식회사 | 이중 다마신 공정에 의한 비아홀 및 트렌치 구조 및 이를형성하는 방법 |
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- 2005-12-22 KR KR1020050128230A patent/KR100744801B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20040009252A (ko) * | 2002-07-23 | 2004-01-31 | 삼성전자주식회사 | 이중 다마신 공정에 의한 비아홀 및 트렌치 구조 및 이를형성하는 방법 |
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KR20070066756A (ko) | 2007-06-27 |
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