KR100591154B1 - 연결 콘택과의 접촉 저항을 줄이는 반도체 소자의 금속패턴 형성 방법 - Google Patents
연결 콘택과의 접촉 저항을 줄이는 반도체 소자의 금속패턴 형성 방법 Download PDFInfo
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- KR100591154B1 KR100591154B1 KR1020030101907A KR20030101907A KR100591154B1 KR 100591154 B1 KR100591154 B1 KR 100591154B1 KR 1020030101907 A KR1020030101907 A KR 1020030101907A KR 20030101907 A KR20030101907 A KR 20030101907A KR 100591154 B1 KR100591154 B1 KR 100591154B1
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 37
- 239000002184 metal Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000004065 semiconductor Substances 0.000 title claims abstract description 21
- 230000007261 regionalization Effects 0.000 title 1
- 125000006850 spacer group Chemical group 0.000 claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 claims abstract description 22
- 239000010949 copper Substances 0.000 claims abstract description 22
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 14
- 239000010937 tungsten Substances 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000004888 barrier function Effects 0.000 claims description 9
- 229920002120 photoresistant polymer Polymers 0.000 claims description 9
- 238000005530 etching Methods 0.000 claims description 7
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- 238000001312 dry etching Methods 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 4
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 4
- 229910021332 silicide Inorganic materials 0.000 description 6
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229910021341 titanium silicide Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/482—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of lead-in layers inseparably applied to the semiconductor body (electrodes)
- H01L23/485—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of lead-in layers inseparably applied to the semiconductor body (electrodes) consisting of layered constructions comprising conductive layers and insulating layers, e.g. planar contacts
-
- 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
- H01L21/76804—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 by forming tapered via holes
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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
- H01L21/76838—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
-
- 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
- H01L21/76885—By forming conductive members before deposition of protective insulating material, e.g. pillars, studs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (7)
- 반도체 기판 상의 하부 절연층을 관통하는 연결 콘택을 형성하는 단계,상기 연결 콘택을 덮는 상부 절연층을 형성하는 단계,상기 상부 절연층의 일부를 식각하여 상기 연결 콘택과 대응하는 홈을 형성하는 단계,상기 홈의 측벽에 마스크 스페이서를 형성하는 단계,상기 마스크 스페이서를 포함한 상기 홈을 식각하여 상기 연결 콘택의 상부 표면을 노출하는 제1 트렌치 및 상기 연결 콘택의 측벽을 노출하며 경사진 측벽을 가지는 제2 트렌치를 포함하는 트렌치를 형성하는 단계, 그리고상기 트랜치를 채워 상기 연결 콘택과 전기적으로 연결되는 금속패턴을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 금속 패턴 형성 방법.
- 제 1항에 있어서,상기 홈을 형성하는 단계는 상기 다마신 트렌치를 형성할 때 도입될 포토레지스트 패턴을 형성하는 단계; 및상기 포토레지스트 패턴을 식각 마스크로 상기 상부 절연층을 식각하여 상기 홈을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 금속 패턴 형성 방법.
- 제 1항에 있어서, 상기 마스크 스페이서를 형성하는 단계는상기 홈의 프로파일을 따른 라이너 형태의 스페이서층을 실리콘 산화물층을 포함하여 형성하는 단계; 및상기 실리콘 산화물층을 이방성 건식 식각하여 상기 홈의 측벽에만 잔류시키는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 금속 패턴 형성 방법.
- 제 1항에 있어서, 상기 마스크 스페이서를 형성하는 단계는상기 홈의 프로파일을 따른 라이너 형태의 스페이서층을 실리콘 질화물층을 포함하여 형성하는 단계; 및상기 실리콘 질화물층을 이방성 건식 식각하여 상기 홈의 측벽에만 잔류시키는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 금속 패턴 형성 방법.
- 제 1항에 있어서,상기 연결 콘택은 텅스텐층을 포함하여 형성되는 것을 특징으로 하는 반도체 소자의 금속 패턴 형성 방법.
- 제 5항에 있어서, 상기 금속 패턴을 형성하는 단계는상기 텅스텐층에 전기적으로 연결되기 위해 상기 다마신 트렌치를 채우는 구리층을 형성하는 단계; 및상기 구리층을 평탄화하는 단계를 포함하여 수행되는 것을 특징으로 하는 반도체 소자의 금속 패턴 형성 방법.
- 제 6항에 있어서, 상기 구리층을 형성하는 단계는상기 다마신 트렌치 내에 상기 연결 콘택을 노출된 부분을 덮는 탄탈륨/질화 탄탈륨(Ta/TaN)층을 포함하는 장벽 금속층을 형성하는 단계; 및상기 장벽 금속층 상에 시드층(seed layer)을 개재하는 구리층을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 금속 패턴 형성 방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030101907A KR100591154B1 (ko) | 2003-12-31 | 2003-12-31 | 연결 콘택과의 접촉 저항을 줄이는 반도체 소자의 금속패턴 형성 방법 |
DE102004062834A DE102004062834A1 (de) | 2003-12-31 | 2004-12-27 | Verfahren zum Bilden einer Metallstruktur zur Verringerung des spezifischen Kontaktwiderstandes mit einem Verbindungskontakt |
JP2004376158A JP2005197700A (ja) | 2003-12-31 | 2004-12-27 | 半導体素子の金属パターン形成方法 |
US11/024,467 US7271091B2 (en) | 2003-12-31 | 2004-12-30 | Method for forming metal pattern to reduce contact resistivity with interconnection contact |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030101907A KR100591154B1 (ko) | 2003-12-31 | 2003-12-31 | 연결 콘택과의 접촉 저항을 줄이는 반도체 소자의 금속패턴 형성 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20050069640A KR20050069640A (ko) | 2005-07-05 |
KR100591154B1 true KR100591154B1 (ko) | 2006-06-19 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020030101907A KR100591154B1 (ko) | 2003-12-31 | 2003-12-31 | 연결 콘택과의 접촉 저항을 줄이는 반도체 소자의 금속패턴 형성 방법 |
Country Status (4)
Country | Link |
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US (1) | US7271091B2 (ko) |
JP (1) | JP2005197700A (ko) |
KR (1) | KR100591154B1 (ko) |
DE (1) | DE102004062834A1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100653997B1 (ko) * | 2005-04-26 | 2006-12-05 | 주식회사 하이닉스반도체 | 낮은 저항을 갖는 반도체소자의 금속배선 및 그 제조 방법 |
JP4750586B2 (ja) * | 2006-02-28 | 2011-08-17 | 住友電工デバイス・イノベーション株式会社 | 半導体装置および電子装置並びにその製造方法 |
TWI312578B (en) * | 2006-09-29 | 2009-07-21 | Innolux Display Corp | Thin film transistor substrate |
TWI572009B (zh) | 2011-01-14 | 2017-02-21 | 半導體能源研究所股份有限公司 | 半導體記憶裝置 |
EP3503168A1 (en) | 2014-12-23 | 2019-06-26 | INTEL Corporation | Decoupled via fill |
WO2016189415A1 (ja) * | 2015-05-26 | 2016-12-01 | 株式会社半導体エネルギー研究所 | 半導体装置、および電子機器 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US5904559A (en) * | 1996-03-06 | 1999-05-18 | Taiwan Semiconductor Manufacturing Company, Ltd. | Three dimensional contact or via structure with multiple sidewall contacts |
US6475904B2 (en) * | 1998-12-03 | 2002-11-05 | Advanced Micro Devices, Inc. | Interconnect structure with silicon containing alicyclic polymers and low-k dielectric materials and method of making same with single and dual damascene techniques |
JP2000174117A (ja) | 1998-12-04 | 2000-06-23 | Sony Corp | 半導体装置の製造方法 |
US6398929B1 (en) * | 1999-10-08 | 2002-06-04 | Applied Materials, Inc. | Plasma reactor and shields generating self-ionized plasma for sputtering |
TW444342B (en) * | 2000-02-17 | 2001-07-01 | United Microelectronics Corp | Manufacturing method of metal interconnect having inner gap spacer |
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2003
- 2003-12-31 KR KR1020030101907A patent/KR100591154B1/ko not_active IP Right Cessation
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2004
- 2004-12-27 DE DE102004062834A patent/DE102004062834A1/de not_active Withdrawn
- 2004-12-27 JP JP2004376158A patent/JP2005197700A/ja active Pending
- 2004-12-30 US US11/024,467 patent/US7271091B2/en not_active Expired - Fee Related
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Publication number | Publication date |
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US7271091B2 (en) | 2007-09-18 |
JP2005197700A (ja) | 2005-07-21 |
DE102004062834A1 (de) | 2005-11-24 |
KR20050069640A (ko) | 2005-07-05 |
US20050142841A1 (en) | 2005-06-30 |
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