KR100463955B1 - 반도체 소자의 트랜지스터 및 그 제조 방법 - Google Patents
반도체 소자의 트랜지스터 및 그 제조 방법 Download PDFInfo
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- KR100463955B1 KR100463955B1 KR10-2002-0037887A KR20020037887A KR100463955B1 KR 100463955 B1 KR100463955 B1 KR 100463955B1 KR 20020037887 A KR20020037887 A KR 20020037887A KR 100463955 B1 KR100463955 B1 KR 100463955B1
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- oxide film
- nitrogen
- semiconductor substrate
- transistor
- gate
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 53
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 150000004767 nitrides Chemical class 0.000 claims abstract description 36
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims description 21
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 18
- 229920005591 polysilicon Polymers 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 14
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 10
- 238000000059 patterning Methods 0.000 claims description 6
- 238000001312 dry etching Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- -1 nitrogen ion Chemical class 0.000 claims 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052796 boron Inorganic materials 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 32
- 238000004140 cleaning Methods 0.000 description 7
- 238000005468 ion implantation Methods 0.000 description 7
- 125000006850 spacer group Chemical group 0.000 description 7
- 229910021332 silicide Inorganic materials 0.000 description 6
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
- H10D84/0181—Manufacturing their gate insulating layers
-
- 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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28185—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation with a treatment, e.g. annealing, after the formation of the gate insulator and before the formation of the definitive gate conductor
-
- 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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28202—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation in a nitrogen-containing ambient, e.g. nitride deposition, growth, oxynitridation, NH3 nitridation, N2O oxidation, thermal nitridation, RTN, plasma nitridation, RPN
-
- 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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28211—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation in a gaseous ambient using an oxygen or a water vapour, e.g. RTO, possibly through a layer
-
- 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
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
- H10D84/82—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
- H10D84/83—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
- H10D84/85—Complementary IGFETs, e.g. CMOS
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- Chemical & Material Sciences (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (12)
- 소자 형성 영역의 반도체 기판 표면에 질소를 주입하는 단계;상기 반도체 기판 상부에 산화막을 형성하면서 상기 산화막 하부에 질화 산화막을 형성하여 상기 산화막 및 상기 질화산화막이 적층된 구조의 게이트 산화막이 형성되는 단계;상기 게이트 산화막 내에서 상기 질화 산화막의 두께를 상기 산화막보다 더 두껍게 성장시키면서 상기 질화 산화막 상부의 질소 농도가 더 높아지도록 질소가 포함된 가스 분위기에서 열처리를 실시하는 단계;상기 산화막 상부에 폴리실리콘층을 형성하는 단계;식각 공정으로 상기 폴리실리콘층, 상기 산화막 및 상기 질화 산화막을 패터닝하여 상기 폴리실리콘층으로 이루어진 게이트 전극과, 상기 질화 산화막 및 상기 산화막의 적층 구조로 이루어진 게이트 산화막을 형성하는 단계; 및상기 게이트 전극 양 가장자리의 상기 반도체 기판에 소오스/드레인을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 질소를 주입하기 전에 상기 반도체 기판 상에 희생 산화막을 형성하는 단계를 더 포함하며, 상기 희생 산화막은 상기 산화막을 형성하기 전에 제거되는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 질소는 5 내지 30keV의 에너지로 주입되는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 2 항 또는 제 3 항에 있어서,상기 질소의 주입량은 7E13 내지 1E15ions/cm
2 인 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법. - 제 1 항에 있어서, 상기 질소를 주입한 후 상기 산화막을 형성하기 전에,급속 열처리를 실시하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 5 항에 있어서,상기 급속 열처리는 질소가스 분위기에서 900 내지 1050℃의 온도로 10 내지30초 동안 실시하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 산화막은 5 내지 30Å의 두께로 형성하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항 또는 제 7 항에 있어서,상기 산화막은 500 내지 900℃의 온도에서 O2가스 또는 NO 가스를 공급하여 형성하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 열처리는 750 내지 950℃의 온도에서 산화질소 분위기로 15 내지 45분 동안 실시되며, 상기 질화 산화막을 10 내지 35Å로 성장시키는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 제 1 항에 있어서,상기 식각 공정은 HBr 가스가 포함된 식각 가스를 이용한 건식 식각 방법으로 실시하는 것을 특징으로 하는 반도체 소자의 트랜지스터 제조 방법.
- 반도체 기판 상부에 소정의 패턴으로 형성된 게이트 전극;상기 게이트 전극 양 가장자리의 상기 반도체 기판에 형성된 소오스/드레인; 및상기 게이트 전극 및 상기 반도체 기판 사이에 형성되며, 하부보다 상부의 질소 이온 농도가 높은 질화 산화막과 산화막이 순차적으로 적층된 구조의 게이트 산화막을 포함하는 반도체 소자의 트랜지스터.
- 제 11 항에 있어서,상기 질화 산화막의 두께가 상기 산화막의 두께보다 두꺼운 반도체 소자의 트랜지스터.
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KR10-2002-0037887A KR100463955B1 (ko) | 2002-07-02 | 2002-07-02 | 반도체 소자의 트랜지스터 및 그 제조 방법 |
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KR10-2002-0037887A KR100463955B1 (ko) | 2002-07-02 | 2002-07-02 | 반도체 소자의 트랜지스터 및 그 제조 방법 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980056123A (ko) * | 1996-12-28 | 1998-09-25 | 김광호 | 트랜지스터 제조 방법 |
JPH10256539A (ja) * | 1997-03-10 | 1998-09-25 | Fujitsu Ltd | 半導体装置及びその製造方法 |
KR20000014374A (ko) * | 1998-08-20 | 2000-03-15 | 김규현 | 모스 트랜지스터의 게이트 산화막 제조 방법 |
KR20010057471A (ko) * | 1999-12-23 | 2001-07-04 | 윤종용 | 시모스(cmos) 트랜지스터 제조방법 |
KR20030050198A (ko) * | 2001-12-18 | 2003-06-25 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
-
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- 2002-07-02 KR KR10-2002-0037887A patent/KR100463955B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980056123A (ko) * | 1996-12-28 | 1998-09-25 | 김광호 | 트랜지스터 제조 방법 |
JPH10256539A (ja) * | 1997-03-10 | 1998-09-25 | Fujitsu Ltd | 半導体装置及びその製造方法 |
KR20000014374A (ko) * | 1998-08-20 | 2000-03-15 | 김규현 | 모스 트랜지스터의 게이트 산화막 제조 방법 |
KR20010057471A (ko) * | 1999-12-23 | 2001-07-04 | 윤종용 | 시모스(cmos) 트랜지스터 제조방법 |
KR20030050198A (ko) * | 2001-12-18 | 2003-06-25 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
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