KR20020038508A - 반도체 장치 및 그의 제조방법 - Google Patents
반도체 장치 및 그의 제조방법 Download PDFInfo
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- KR20020038508A KR20020038508A KR1020010070826A KR20010070826A KR20020038508A KR 20020038508 A KR20020038508 A KR 20020038508A KR 1020010070826 A KR1020010070826 A KR 1020010070826A KR 20010070826 A KR20010070826 A KR 20010070826A KR 20020038508 A KR20020038508 A KR 20020038508A
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- Prior art keywords
- film
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- semiconductor device
- nitride film
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 150000004767 nitrides Chemical class 0.000 claims abstract description 56
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 27
- 229920005591 polysilicon Polymers 0.000 claims abstract description 27
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910021332 silicide Inorganic materials 0.000 claims abstract description 7
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000005530 etching Methods 0.000 claims description 100
- 239000011229 interlayer Substances 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 41
- 238000005229 chemical vapour deposition Methods 0.000 claims description 27
- 239000012535 impurity Substances 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000005669 field effect Effects 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000005121 nitriding Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 abstract description 9
- 230000000593 degrading effect Effects 0.000 abstract 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 42
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 21
- 229910052814 silicon oxide Inorganic materials 0.000 description 21
- 230000003064 anti-oxidating effect Effects 0.000 description 14
- 239000003963 antioxidant agent Substances 0.000 description 14
- 230000003078 antioxidant effect Effects 0.000 description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- 239000005380 borophosphosilicate glass Substances 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 12
- 238000007254 oxidation reaction Methods 0.000 description 12
- 229910052710 silicon Inorganic materials 0.000 description 12
- 239000010703 silicon Substances 0.000 description 12
- 238000009792 diffusion process Methods 0.000 description 6
- 239000011800 void material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000005468 ion implantation Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 238000001020 plasma etching Methods 0.000 description 4
- 230000002542 deteriorative effect Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 2
- 229910021342 tungsten silicide Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
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- 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
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- 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
- H01L21/28247—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon passivation or protection of the electrode, e.g. using re-oxidation
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- 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
- H01L21/76829—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 characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
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- 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
- H01L21/76829—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 characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
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- 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
- H01L21/76829—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 characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
- H01L21/76834—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 characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers formation of thin insulating films on the sidewalls or on top of conductors
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- 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
- H01L21/823418—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the source or drain structures, e.g. specific source or drain implants or silicided source or drain structures or raised source or drain structures
- H01L21/823425—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the source or drain structures, e.g. specific source or drain implants or silicided source or drain structures or raised source or drain structures manufacturing common source or drain regions between a plurality of conductor-insulator-semiconductor structures
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- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823468—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the gate sidewall spacers, e.g. double spacers, particular spacer material or shape
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- H01L21/8232—Field-effect technology
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- H01L21/823475—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type interconnection or wiring or contact manufacturing related aspects
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- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
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Abstract
Description
Claims (20)
- 게이트절연막 상에 형성된 하층전극과 하층전극 상에 형성된 상층전극을 구비한 IGFET의 게이트전극;상층전극 상에 형성된 캡막;상층전극의 측면상에 있는 제1 질화막;하층전극의 측면상에 있는 산화막; 및제1 질화막과 산화막의 외측상에 형성된 제2 질화막을 구비한 에칭스토퍼막을 포함하는 것을 특징으로 하는 절연게이트전계효과트랜지스터(IGFET)를 구비한 반도체장치.
- 제1항에 있어서, 제1 질화막이 열질화막인 것을 특징으로 하는 반도체장치.
- 제2항에 있어서, 제1 질화막이 급속열질화막(rapidly heated thermal nitride film)인 것을 특징으로 하는 반도체장치.
- 제2항에 있어서, 제1 질화막은 2 내지 5nm정도의 막두께를 가지는 것을 특징으로 하는 반도체장치.
- 제2항에 있어서,IGFET의 게이트전극을 피복하도록 형성된 층간절연막;IGFET의 소스/드레인영역을 노출시키도록 층간절연막에서 개구된 콘택트홀; 및콘택트홀을 충진하고 소스/드레인영역과 전기적으로 접속되는 도체를 더 포함하는 것을 특징으로 하는 반도체장치.
- 제2항에 있어서, 산화막은 열산화막인 것을 특징으로 하는 반도체장치.
- 제2항에 있어서, 제2 질화막은 화학증착법(CVD)으로 형성되는 것을 특징으로 하는 반도체장치.
- 반도체기판 상에 게이트절연막을 형성하는 단계;제1 전도막 상에 형성된 제2 전도막 상에 형성된 절연막을 구비하는 적층막을 게이트절연막 상에 형성하는 단계;절연막과 제2 전도막을 소정의 패턴으로 에칭하여 캡막과 상층게이트전극을 형성하는 단계;상층게이트전극의 측면상에 제1 질화막을 형성하는 단계;캡막, 상층게이트전극 및 질화막을 마스크로 이용하여 제1 전도막을 에칭함으로써 하층게이트전극을 형성하는 단계;하층게이트전극의 측면상에 제1 산화막을 형성하는 단계; 및전표면상에 제2 질화막을 구비하는 에칭스토퍼막을 형성하는 단계를 포함하는 것을 특징으로 하는 절연게이트전계효과트랜지스터(IGFET)를 구비한 반도체장치의 제조방법.
- 제8항에 있어서, 제1 전도막은 폴리실리콘막을 구비하며;제2 전도막은 금속막을 구비하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제8항에 있어서, 제1 전도막은 폴리실리콘막을 구비하며;제2 전도막은 고융점을 가지는 금속실리사이드막을 구비하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제8항에 있어서, 제1 질화막은 열질화막이며;제1 산화막은 열산화막인 것을 특징으로 하는 반도체장치의 제조방법.
- 제8항에 있어서, 에칭스토퍼막을 형성하는 단계는 제2 질화막을 화학증착법으로 형성하는 단계를 구비하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제8항에 있어서, 제1 질화막은 램프를 가열원으로 이용하는 급속열질화단계로 형성된 열질화막인 것을 특징으로 하는 반도체장치의 제조방법.
- 제8항에 있어서,제1 산화막을 형성하는 단계 후에 불순물을 반도체기판으로 도핑함으로써 소스/드레인영역을 형성하는 단계; 및에칭스토퍼막을 형성하는 단계 후에 전표면 상에 층간절연막을 형성하고 에칭스토퍼막에 대한 선택적인 에칭율로 층간절연막을 선택적으로 에칭하여 콘택트홀을 개구하는 단계를 더 구비하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제8항에 있어서,제1 산화막을 형성하는 단계 후 반도체기판으로 제1 불순물 농도를 도핑함으로써 LDD(lightly doped drain)영역을 형성하는 단계;에칭스토퍼막을 이방성 에칭하여 하층게이트전극, 상층게이트전극 및 캡층의 측면상에 측벽에칭스토퍼막을 형성하는 단계; 및측벽에칭스토퍼막을 마스크로 이용하여 반도체기판으로 제1 불순물 농도보다 높은 제2 불순물 농도를 도핑함으로써 소스/드레인영역을 형성하는 단계를 더 구비하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제15항에 있어서,반도체기판의 전표면상에 화학증착법으로 제2 산화막을 형성하는 단계;제2 산화막을 이방성 에칭하여 에칭스토퍼막의 측면상에 측면산화막을 형성하는 단계; 및측벽을 형성하는 단계 후 소스/드레인영역을 형성하는 단계를 더 구비하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1 게이트절연막 상에 형성된 제1 하층전극과 제1 하층전극 상에 형성된 제1 상층전극을 가진 제1 영역에 있는 제1 IGFET의 제1 게이트전극;제1 상층전극 상에 형성된 제1 캡막;제1 상층전극의 측면상에 있는 제1 질화막;제1 하층전극의 측면상에 있는 제1 산화막;제1 질화막과 제1 산화막의 외측에 형성된 제2 질화막을 구비하는 제1 에칭스토퍼막;제2 게이트절연막 상에 형성된 제2 하층전극 및 제2 하층전극 상에 형성된 제2 상층전극을 가진 제2 영역에 있는 제2 IGFET의 제2 게이트전극;제2 상층전극 상에 형성된 제2 캡막;제2 상층전극의 측면상에 있는 제3 질화막;제2 하층전극의 측면상에 있는 제2 산화막; 및제3 질화막과 제2 산화막의 외측에 형성된 제4 질화막을 구비하는 제2 에칭스토퍼막을 포함하며, 제1 IGFET는 약간 도핑된 드레인을 구비하는 제1 영역과 제2 영역을 구비하는 것을 특징으로 하는 반도체장치.
- 제17항에 있어서, 반도체장치는 반도체메모리장치인 것을 특징으로 하는 반도체장치.
- 제18항에 있어서, 제1 영역은 메모리셀영역이고 제2 영역은 주변회로영역인 것을 특징으로 하는 반도체장치.
- 제19항에 있어서,제1 IGFET의 제1 소스/드레인영역에 전기적 접속을 제공하는 제1 콘택트; 및제2 IGFET의 제2 소스/드레인영역에 전기적 접속을 제공하는 제2 콘택트를 더 구비하며,제1 콘택트로부터 제1 게이트전극까지의 제1 거리가 제2 콘택트로부터 제2 게이트전극까지의 제2 거리보다 더 큰 것을 특징으로 하는 반도체장치.
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- 2001-11-14 KR KR10-2001-0070826A patent/KR100446459B1/ko active IP Right Grant
- 2001-11-15 TW TW090128555A patent/TW523929B/zh not_active IP Right Cessation
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US20040067628A1 (en) | 2004-04-08 |
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