KR100384774B1 - 반도체 소자의 게이트 제조방법 - Google Patents
반도체 소자의 게이트 제조방법 Download PDFInfo
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- KR100384774B1 KR100384774B1 KR10-2000-0067947A KR20000067947A KR100384774B1 KR 100384774 B1 KR100384774 B1 KR 100384774B1 KR 20000067947 A KR20000067947 A KR 20000067947A KR 100384774 B1 KR100384774 B1 KR 100384774B1
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- Prior art keywords
- gate
- metal layer
- nitrogen
- semiconductor substrate
- dummy gate
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 70
- 239000004065 semiconductor Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 93
- 239000002184 metal Substances 0.000 claims abstract description 93
- 239000010410 layer Substances 0.000 claims abstract description 74
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 239000011229 interlayer Substances 0.000 claims abstract description 15
- 238000000151 deposition Methods 0.000 claims abstract description 9
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005121 nitriding Methods 0.000 claims abstract description 3
- 238000005498 polishing Methods 0.000 claims abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 34
- 238000005468 ion implantation Methods 0.000 claims description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 18
- 229920005591 polysilicon Polymers 0.000 claims description 18
- 239000002019 doping agent Substances 0.000 claims description 15
- 150000002500 ions Chemical class 0.000 claims description 12
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 6
- -1 oxy nitride Chemical class 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000005229 chemical vapour deposition Methods 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000009977 dual effect Effects 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 53
- 238000005530 etching Methods 0.000 description 9
- 125000006850 spacer group Chemical group 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- OKZIUSOJQLYFSE-UHFFFAOYSA-N difluoroboron Chemical compound F[B]F OKZIUSOJQLYFSE-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- GPBUGPUPKAGMDK-UHFFFAOYSA-N azanylidynemolybdenum Chemical compound [Mo]#N GPBUGPUPKAGMDK-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823828—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate conductors, e.g. particular materials, shapes
- H01L21/823842—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate conductors, e.g. particular materials, shapes gate conductors with different gate conductor materials or different gate conductor implants, e.g. dual gate 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
- H01L21/22—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities
- H01L21/223—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities using diffusion into or out of a solid from or into a gaseous phase
- H01L21/2236—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities using diffusion into or out of a solid from or into a gaseous phase from or into a plasma phase
-
- 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
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
- H01L21/266—Bombardment with radiation with high-energy radiation producing ion implantation using masks
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- High Energy & Nuclear Physics (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (12)
- PMOS 영역과 NMOS 영역 각각의 상면에 더미게이트가 형성된 반도체 기판을 제공하는 단계;상기 반도체 기판의 전체 표면상에 층간절연막을 증착하는 단계;상기 반도체 기판상의 더미게이트가 노출될때까지 상기 층간 절연막을 연마하는 단계;상기 PMOS 영역 및 NMOS 영역을 포함하는 반도체 기판상의 소정부분이 노출되도록 상기 더미게이트를 제거하는 단계;상기 더미게이트가 제거된 영역을 포함하는 반도체 기판 전체 표면상에 게이트 절연막과 제1 금속층을 차례로 증착하는 단계;상기 제1 금속층이 형성된 NMOS 영역 및 PMOS 영역중 한 영역에 대해서만 질소함유공정을 실시하여 질화된 제1 금속층을 형성하는 단계;상기 질화함유공정이 수행된 결과물 전면상에 제2 금속층을 형성하는 단계; 및상기 층간절연막이 노출될때까지 상기 제2 금속층과, 상기 제1 금속층 및 질화된 제1 금속층과 게이트 절연막을 차례로 제거하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 1항에 있어서,상기 더미게이트는 더미게이트 산화막과 더미게이트용 폴리실리콘막으로 증착되는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 2항에 있어서,상기 더미게이트용 폴리실리콘막은 저압화학증기증착방법을 이용하여 2000 ~4000Å의 두께로 증착하는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 1항에 있어서,상기 게이트 절연막은 산화막, 옥시 나이트라이드막 및 고유전율막 중 하나에 의해 형성되는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 1항에 있어서,상기 제1 금속층은 탄탈륨, 타이타늄, 몰리브덴, 타이타늄 알루미늄 및 텅스텐 중 하나에 의해 형성되는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 1항에 있어서,상기 제1 금속층은 화학적 증착법을 이용하여 200 ~400Å 두께로 형성되는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 1항에 있어서,상기 질소함유 공정은 질소 이온주입공정 및 질소 플라즈마도핑 중 하나에 의해 수행되는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 7항에 있어서,상기 질소 이온주입공정은 도펀트로서 질소원자 및 질소분자 중 하나에 의해 수행되는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 8항에 있어서,상기 질소원자를 도펀트로서 사용할 경우의 공정조건은 0.5 ~ 5keV의 에너지 및 1 × 1013~ 5 × 1015ions/cm2의 도우즈량으로 이온주입되는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 8항에 있어서,상기 질소분자를 도펀트로서 사용할 경우의 공정조건은 1 ~ 10keV의 에너지 및 1 × 1013~ 5 × 1015ions/cm2의 도우즈량으로 이온주입되는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 7항에 있어서,상기 질소 플라즈마도핑은 질소 분위기 내에서 0.2 ~ 5keV의 에너지 및 1 ×1013~ 5 × 1015ions/cm2의 도우즈량으로 플라즈마 도핑하는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
- 제 1항에 있어서,상기 제2 금속층은 알루미늄, 구리, 금, 은 중 하나에 의해서 형성되는 저저항의 금속층으로 3000 ~ 5000Å의 두께로 형성되는 것을 특징으로 하는 반도체 소자의 게이트 제조방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0067947A KR100384774B1 (ko) | 2000-11-16 | 2000-11-16 | 반도체 소자의 게이트 제조방법 |
JP2001318490A JP2002198441A (ja) | 2000-11-16 | 2001-10-16 | 半導体素子のデュアル金属ゲート形成方法 |
US09/982,841 US6586288B2 (en) | 2000-11-16 | 2001-10-18 | Method of forming dual-metal gates in semiconductor device |
Applications Claiming Priority (1)
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KR10-2000-0067947A KR100384774B1 (ko) | 2000-11-16 | 2000-11-16 | 반도체 소자의 게이트 제조방법 |
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KR20020037942A KR20020037942A (ko) | 2002-05-23 |
KR100384774B1 true KR100384774B1 (ko) | 2003-05-22 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8124512B2 (en) | 2008-12-10 | 2012-02-28 | Samsung Electronics Co., Ltd. | Methods of forming integrated circuit devices having different gate electrode cross sections |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100861357B1 (ko) * | 2002-07-16 | 2008-10-01 | 주식회사 하이닉스반도체 | 디램 소자의 제조 방법 |
KR100899565B1 (ko) * | 2002-10-21 | 2009-05-27 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 금속 게이트 형성방법 |
KR20130006080A (ko) | 2011-07-08 | 2013-01-16 | 삼성전자주식회사 | 반도체 장치의 제조 방법 |
US9142414B2 (en) * | 2011-12-20 | 2015-09-22 | Taiwan Semiconductor Manufacturing Company, Ltd. | CMOS devices with metal gates and methods for forming the same |
DE112012005736T5 (de) * | 2012-01-24 | 2014-10-16 | Canon Anelva Corporation | Herstellungsverfahren für elektrisches Bauteil und Elektrodenaufbau |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8124512B2 (en) | 2008-12-10 | 2012-02-28 | Samsung Electronics Co., Ltd. | Methods of forming integrated circuit devices having different gate electrode cross sections |
US8710594B2 (en) | 2008-12-10 | 2014-04-29 | Samsung Electronics Co., Ltd. | Integrated circuit devices having conductive structures with different cross sections |
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