KR101026386B1 - 반도체 소자의 듀얼 폴리게이트 형성방법 - Google Patents
반도체 소자의 듀얼 폴리게이트 형성방법 Download PDFInfo
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- KR101026386B1 KR101026386B1 KR1020090039454A KR20090039454A KR101026386B1 KR 101026386 B1 KR101026386 B1 KR 101026386B1 KR 1020090039454 A KR1020090039454 A KR 1020090039454A KR 20090039454 A KR20090039454 A KR 20090039454A KR 101026386 B1 KR101026386 B1 KR 101026386B1
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- metal film
- barrier metal
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- 238000000034 method Methods 0.000 title claims abstract description 65
- 239000004065 semiconductor Substances 0.000 title claims abstract description 47
- 230000009977 dual effect Effects 0.000 title claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 96
- 239000002184 metal Substances 0.000 claims abstract description 96
- 230000004888 barrier function Effects 0.000 claims abstract description 66
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 26
- 229920005591 polysilicon Polymers 0.000 claims abstract description 26
- 239000012535 impurity Substances 0.000 claims abstract description 23
- 150000002500 ions Chemical class 0.000 claims abstract description 18
- 230000003647 oxidation Effects 0.000 claims abstract description 16
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000000059 patterning Methods 0.000 claims abstract description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 23
- 239000010937 tungsten Substances 0.000 claims description 23
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 20
- 229910008807 WSiN Inorganic materials 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 10
- 229910052796 boron Inorganic materials 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 9
- -1 tungsten nitride Chemical class 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000005240 physical vapour deposition Methods 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- WNUPENMBHHEARK-UHFFFAOYSA-N silicon tungsten Chemical compound [Si].[W] WNUPENMBHHEARK-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229910001882 dioxygen Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 13
- 239000010408 film Substances 0.000 description 194
- 239000010410 layer Substances 0.000 description 31
- 238000000151 deposition Methods 0.000 description 15
- 230000008021 deposition Effects 0.000 description 13
- 238000009792 diffusion process Methods 0.000 description 13
- 230000006911 nucleation Effects 0.000 description 6
- 238000010899 nucleation Methods 0.000 description 6
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 6
- 229910021342 tungsten silicide Inorganic materials 0.000 description 6
- 238000005468 ion implantation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920002120 photoresistant polymer Polymers 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 230000003679 aging effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910000085 borane Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Classifications
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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
- H01L21/77—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
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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)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (7)
- 제1 영역 및 제2 영역이 정의된 반도체 기판 상에 게이트 절연막 및 폴리실리콘막을 형성하는 단계;상기 폴리실리콘막의 제1 영역 및 제2 영역에 각각 제1 도전형 및 제2 도전형의 불순물 이온을 주입하는 단계;상기 반도체 기판 상에 열처리를 수행하여 상기 제1 영역 및 제2 영역에 각각 제1 도전형의 폴리실리콘막 및 제2 도전형의 폴리실리콘막을 형성하는 단계;상기 제1 및 제2 도전형의 폴리실리콘막 위에 배리어금속막을 형성하는 단계;산화 공정을 수행하여 상기 배리어금속막 표면에 금속의 저항을 낮추는 산화막을 형성하는 단계;상기 산화막 위에 금속막 및 하드마스크막을 형성하는 단계; 및패터닝 공정을 수행하여 상기 제1 영역 위에 제1 도전형의 폴리게이트를 형성하고, 제2 영역 위에 제2 도전형의 폴리게이트를 형성하는 단계를 포함하는 반도체 소자의 듀얼 폴리게이트 형성방법.
- 제1항에 있어서,상기 제1 도전형의 불순물은 보론(B) 이온을 포함하는 P형 불순물이온이고, 제2 도전형의 불순물은 포스포러스(P) 이온을 포함하는 N형 불순물이온인 반도체 소자의 듀얼 폴리게이트 형성방법.
- 제1항에 있어서,상기 배리어금속막은 티타늄(Ti)막, 텅스텐나이트라이드(WNx)막 및 텅스텐실리콘나이트라이드(WSiN)막이 하나 이상 적층된 구조로 형성하는 반도체 소자의 듀얼 폴리게이트 형성방법.
- 제1항에 있어서,상기 산화 공정은, 상기 배리어금속막이 형성된 반도체 기판을 상온 및 상압의 대기에 노출시킨 상태로 24시간 내지 48시간 동안 유지하여 산화막을 형성하는 반도체 소자의 듀얼 폴리게이트 형성방법.
- 제1항에 있어서, 상기 산화 공정은,상기 배리어금속막이 형성된 반도체 기판을 산소(O2) 분위기의 반응기에 배치하는 단계; 및상기 반응기 내의 온도를 400도 내지 1000도 사이의 온도로 유지하면서 20초 내지 1분 동안 가열하는 열 공정을 수행하는 단계를 포함하는 반도체 소자의 듀얼 폴리게이트 형성방법.
- 제1항에 있어서, 상기 산화 공정은,상기 배리어금속막이 형성된 기판을 플라즈마 챔버에 배치하는 단계; 및상기 플라즈마 챔버 내에 산소 가스를 50sccm 내지 1000sccm의 유량으로 주입하고, 질소(N2) 가스 또는 아르곤(Ar) 가스를 포함하는 혼합 가스를 공급하며, 플라즈마 챔버 내의 압력을 1mTorr 내지 10Torr으로 유지하고 RF 파워를 500W 내지 10000W로 인가하면서 1초 내지 30초 동안 진행하는 단계를 포함하는 반도체 소자의 듀얼 폴리게이트 형성방법.
- 제1항에 있어서,상기 금속막은 물리기상증착(PVD) 방식으로 증착된 텅스텐(W)막을 포함하여 형성하는 반도체 소자의 듀얼 폴리게이트 형성방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020090039454A KR101026386B1 (ko) | 2009-05-06 | 2009-05-06 | 반도체 소자의 듀얼 폴리게이트 형성방법 |
US12/648,785 US8168491B2 (en) | 2009-05-06 | 2009-12-29 | Method for fabricating dual poly gate in semiconductor device |
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KR1020090039454A KR101026386B1 (ko) | 2009-05-06 | 2009-05-06 | 반도체 소자의 듀얼 폴리게이트 형성방법 |
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KR20100120577A KR20100120577A (ko) | 2010-11-16 |
KR101026386B1 true KR101026386B1 (ko) | 2011-04-07 |
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KR1020090039454A KR101026386B1 (ko) | 2009-05-06 | 2009-05-06 | 반도체 소자의 듀얼 폴리게이트 형성방법 |
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US (1) | US8168491B2 (ko) |
KR (1) | KR101026386B1 (ko) |
Families Citing this family (4)
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US9024388B2 (en) * | 2013-06-17 | 2015-05-05 | Globalfoundries Inc. | Methods of forming gate structures for CMOS based integrated circuit products and the resulting devices |
KR102389819B1 (ko) * | 2015-06-17 | 2022-04-22 | 삼성전자주식회사 | 반도체 소자의 제조 방법 |
KR102402761B1 (ko) | 2015-10-30 | 2022-05-26 | 삼성전자주식회사 | 반도체 장치 및 이의 제조 방법 |
CN114530493B (zh) * | 2020-11-23 | 2024-05-03 | 长鑫存储技术有限公司 | 半导体结构及半导体结构的制造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20080062728A (ko) * | 2006-12-29 | 2008-07-03 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 폴리게이트 형성방법 |
KR20080062733A (ko) * | 2006-12-29 | 2008-07-03 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 폴리게이트 형성방법 |
KR20080085533A (ko) * | 2007-03-20 | 2008-09-24 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 폴리 게이트 형성방법 |
KR100914284B1 (ko) | 2006-12-29 | 2009-08-27 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 폴리게이트 및 그 형성방법 |
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US20020132478A1 (en) | 1999-06-29 | 2002-09-19 | Tinghao Frank Wang | Method for selectively etching silicon and/or metal silicides |
KR100618895B1 (ko) | 2005-04-27 | 2006-09-01 | 삼성전자주식회사 | 폴리메탈 게이트 전극을 가지는 반도체 소자 및 그 제조방법 |
JP2009070840A (ja) * | 2007-09-10 | 2009-04-02 | Elpida Memory Inc | 半導体装置及びその製造方法 |
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- 2009-05-06 KR KR1020090039454A patent/KR101026386B1/ko active IP Right Grant
- 2009-12-29 US US12/648,785 patent/US8168491B2/en not_active Expired - Fee Related
Patent Citations (4)
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KR20080062728A (ko) * | 2006-12-29 | 2008-07-03 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 폴리게이트 형성방법 |
KR20080062733A (ko) * | 2006-12-29 | 2008-07-03 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 폴리게이트 형성방법 |
KR100914284B1 (ko) | 2006-12-29 | 2009-08-27 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 폴리게이트 및 그 형성방법 |
KR20080085533A (ko) * | 2007-03-20 | 2008-09-24 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 폴리 게이트 형성방법 |
Also Published As
Publication number | Publication date |
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US8168491B2 (en) | 2012-05-01 |
US20100285659A1 (en) | 2010-11-11 |
KR20100120577A (ko) | 2010-11-16 |
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