KR100815186B1 - 돌출형상의 텅스텐플러그를 구비한 반도체소자의 제조 방법 - Google Patents
돌출형상의 텅스텐플러그를 구비한 반도체소자의 제조 방법 Download PDFInfo
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- KR100815186B1 KR100815186B1 KR1020060087560A KR20060087560A KR100815186B1 KR 100815186 B1 KR100815186 B1 KR 100815186B1 KR 1020060087560 A KR1020060087560 A KR 1020060087560A KR 20060087560 A KR20060087560 A KR 20060087560A KR 100815186 B1 KR100815186 B1 KR 100815186B1
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- plug
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- hard mask
- mask pattern
- gas
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- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 77
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000010937 tungsten Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000004065 semiconductor Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000005530 etching Methods 0.000 claims abstract description 51
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- 239000011229 interlayer Substances 0.000 claims abstract description 23
- 239000010410 layer Substances 0.000 claims abstract description 11
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 11
- 229920005591 polysilicon Polymers 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 150000004767 nitrides Chemical class 0.000 claims description 6
- 230000001052 transient effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition 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
- 239000010936 titanium Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 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
- H01L21/02—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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
-
- 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
- H01L21/7684—Smoothing; Planarisation
-
- 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
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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)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (12)
- 기판 상부에 층간절연막을 형성하는 단계;질화막계열의 하드마스크패턴을 이용한 상기 층간절연막의 식각을 통해 콘택홀을 형성하는 단계;상기 콘택홀을 채울때까지 전면에 텅스텐막을 형성하는 단계;상기 텅스텐막을 에치백 및 과도식각의 순서로 식각하여 상기 콘택홀에 플러그를 형성하는 단계;C4F6 가스, SF6 가스 및 Cl2 가스를 혼합하여 잔류하는 상기 하드마스크패턴을 제거하면서 상기 플러그의 상부를 돌출시키는 단계; 및상기 상부가 돌출된 플러그 상에 금속라인을 형성하는 단계를 포함하는 반도체소자의 제조 방법.
- 제1항에 있어서,상기 잔류하는 하드마스크패턴 제거시,상기 하드마스크패턴이 상기 플러그보다 더 빠르게 식각되도록 하는 식각선택비로 진행하는 반도체소자의 제조 방법.
- 제2항에 있어서,상기 식각선택비는, 상기 하드마스크패턴이 상기 플러그보다 2∼3배 더 빠르게 식각되는 식각선택비를 사용하는 반도체소자의 제조 방법.
- 삭제
- 삭제
- 제1항에 있어서,상기 C4F6 가스는 20∼80sccm의 유량을 사용하고, 상기 SF6 가스는 10∼20sccm의 유량을 사용하며, 상기 Cl2 가스는 50∼150sccm의 유량을 사용하는 반도체소자의 제조 방법.
- 기판 상부에 층간절연막을 형성하는 단계;폴리실리콘하드마스크패턴을 이용한 상기 층간절연막의 식각을 통해 콘택홀을 형성하는 단계;상기 콘택홀을 채울때까지 전면에 텅스텐막을 형성하는 단계;상기 텅스텐막을 선택적으로 식각하여 상기 콘택홀에 플러그를 형성하는 단계;잔류하는 상기 폴리실리콘하드마스크패턴을 제거하면서 상기 플러그의 상부를 돌출시키는 단계; 및상기 상부가 돌출된 플러그 상에 금속라인을 형성하는 단계를 포함하는 반도체소자의 제조 방법.
- 제7항에 있어서,상기 잔류하는 하드마스크패턴 제거시,식각가스로서 HBr 가스와 Cl2 가스를 혼합하여 식각을 진행하는 반도체소자의 제조 방법.
- 제8항에 있어서,상기 HBr 가스는 100∼300sccm의 유량을 사용하고, 상기 Cl2 가스는 10∼50sccm의 유량을 사용하는 반도체소자의 제조 방법.
- 제7항에 있어서,상기 플러그를 형성하는 단계는,상기 텅스텐막을 에치백 및 과도식각의 순서로 식각하는 반도체소자의 제조 방법.
- 제10항에 있어서,상기 과도식각은 30%로 진행하는 반도체소자의 제조 방법.
- 제7항에 있어서,상기 콘택홀이 형성된 이후의 폴리실리콘하드마스크패턴은, 200Å∼500Å 두께인 반도체소자의 제조 방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060087560A KR100815186B1 (ko) | 2006-09-11 | 2006-09-11 | 돌출형상의 텅스텐플러그를 구비한 반도체소자의 제조 방법 |
US11/617,688 US7615494B2 (en) | 2006-09-11 | 2006-12-28 | Method for fabricating semiconductor device including plug |
CNB2006101564308A CN100539073C (zh) | 2006-09-11 | 2006-12-31 | 制造包括栓塞的半导体器件的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060087560A KR100815186B1 (ko) | 2006-09-11 | 2006-09-11 | 돌출형상의 텅스텐플러그를 구비한 반도체소자의 제조 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20080023540A KR20080023540A (ko) | 2008-03-14 |
KR100815186B1 true KR100815186B1 (ko) | 2008-03-19 |
Family
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Family Applications (1)
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KR1020060087560A Expired - Fee Related KR100815186B1 (ko) | 2006-09-11 | 2006-09-11 | 돌출형상의 텅스텐플러그를 구비한 반도체소자의 제조 방법 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7615494B2 (ko) |
KR (1) | KR100815186B1 (ko) |
CN (1) | CN100539073C (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101121858B1 (ko) * | 2010-04-27 | 2012-03-21 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
KR101124302B1 (ko) * | 2010-03-25 | 2012-03-27 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 다마신 패턴 형성 방법 |
Families Citing this family (9)
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US8021974B2 (en) * | 2009-01-09 | 2011-09-20 | Internatioanl Business Machines Corporation | Structure and method for back end of the line integration |
KR20140062669A (ko) | 2012-11-14 | 2014-05-26 | 삼성디스플레이 주식회사 | 표시 패널 및 이의 제조 방법 |
US10727122B2 (en) * | 2014-12-08 | 2020-07-28 | International Business Machines Corporation | Self-aligned via interconnect structures |
KR102674584B1 (ko) | 2019-01-04 | 2024-06-11 | 삼성전자주식회사 | 반도체 장치 |
KR102745031B1 (ko) | 2019-07-18 | 2024-12-19 | 삼성전자주식회사 | 반도체 장치 |
KR102755433B1 (ko) | 2019-10-08 | 2025-01-20 | 삼성전자주식회사 | 반도체 소자 |
US11177163B2 (en) * | 2020-03-17 | 2021-11-16 | International Business Machines Corporation | Top via structure with enlarged contact area with upper metallization level |
CN113517289B (zh) * | 2020-04-10 | 2024-02-09 | 长鑫存储技术有限公司 | 半导体结构及其形成方法 |
US20220319921A1 (en) * | 2021-04-02 | 2022-10-06 | Changxin Memory Technologies, Inc. | Semiconductor Structure and Method for Manufacturing Semiconductor Structure |
Citations (4)
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JPH07335757A (ja) * | 1994-06-06 | 1995-12-22 | Sony Corp | 半導体装置およびその製造方法 |
JPH0823092A (ja) * | 1994-07-06 | 1996-01-23 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
KR20000045358A (ko) * | 1998-12-30 | 2000-07-15 | 김영환 | 반도체소자의 제조방법 |
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2006
- 2006-09-11 KR KR1020060087560A patent/KR100815186B1/ko not_active Expired - Fee Related
- 2006-12-28 US US11/617,688 patent/US7615494B2/en not_active Expired - Fee Related
- 2006-12-31 CN CNB2006101564308A patent/CN100539073C/zh not_active Expired - Fee Related
Patent Citations (4)
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JPH07335757A (ja) * | 1994-06-06 | 1995-12-22 | Sony Corp | 半導体装置およびその製造方法 |
JPH0823092A (ja) * | 1994-07-06 | 1996-01-23 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
KR20000045358A (ko) * | 1998-12-30 | 2000-07-15 | 김영환 | 반도체소자의 제조방법 |
KR20020086100A (ko) * | 2001-05-11 | 2002-11-18 | 아남반도체 주식회사 | 다층 배선의 콘택 형성 방법 |
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KR101124302B1 (ko) * | 2010-03-25 | 2012-03-27 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 다마신 패턴 형성 방법 |
KR101121858B1 (ko) * | 2010-04-27 | 2012-03-21 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
Also Published As
Publication number | Publication date |
---|---|
CN101145541A (zh) | 2008-03-19 |
KR20080023540A (ko) | 2008-03-14 |
US20080064221A1 (en) | 2008-03-13 |
CN100539073C (zh) | 2009-09-09 |
US7615494B2 (en) | 2009-11-10 |
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