KR20030029024A - 반도체 장치 및 그 제조 방법 - Google Patents
반도체 장치 및 그 제조 방법 Download PDFInfo
- Publication number
- KR20030029024A KR20030029024A KR1020020060056A KR20020060056A KR20030029024A KR 20030029024 A KR20030029024 A KR 20030029024A KR 1020020060056 A KR1020020060056 A KR 1020020060056A KR 20020060056 A KR20020060056 A KR 20020060056A KR 20030029024 A KR20030029024 A KR 20030029024A
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- South Korea
- Prior art keywords
- gate electrode
- insulating film
- film
- semiconductor substrate
- forming
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 135
- 238000004519 manufacturing process Methods 0.000 title abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 224
- 239000012535 impurity Substances 0.000 claims abstract description 159
- 238000005468 ion implantation Methods 0.000 claims abstract description 110
- 238000009792 diffusion process Methods 0.000 claims abstract description 32
- 238000005530 etching Methods 0.000 claims description 74
- 238000000034 method Methods 0.000 claims description 59
- 150000002500 ions Chemical class 0.000 claims description 38
- 230000015572 biosynthetic process Effects 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 20
- 239000012528 membrane Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 139
- 229910052710 silicon Inorganic materials 0.000 description 139
- 239000010703 silicon Substances 0.000 description 139
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 117
- 229910052814 silicon oxide Inorganic materials 0.000 description 117
- 229910052581 Si3N4 Inorganic materials 0.000 description 80
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 80
- 230000008569 process Effects 0.000 description 27
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 22
- 229920005591 polysilicon Polymers 0.000 description 22
- 239000000126 substance Substances 0.000 description 22
- 239000010410 layer Substances 0.000 description 17
- 125000006850 spacer group Chemical group 0.000 description 15
- -1 arsenic ions Chemical class 0.000 description 14
- 239000007788 liquid Substances 0.000 description 14
- 229920002120 photoresistant polymer Polymers 0.000 description 14
- 238000009826 distribution Methods 0.000 description 12
- 230000001133 acceleration Effects 0.000 description 11
- 229910052796 boron Inorganic materials 0.000 description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-N hydrofluoric acid Substances F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 11
- 238000002513 implantation Methods 0.000 description 10
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- 238000001039 wet etching Methods 0.000 description 9
- 229910052785 arsenic Inorganic materials 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000011229 interlayer Substances 0.000 description 8
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- 238000005229 chemical vapour deposition Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
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- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 5
- 229910021417 amorphous silicon Inorganic materials 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 229960002050 hydrofluoric acid Drugs 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 230000003373 anti-fouling effect Effects 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001312 dry etching Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001020 plasma etching Methods 0.000 description 3
- 229910021332 silicide Inorganic materials 0.000 description 3
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910001423 beryllium ion Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Classifications
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- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/665—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using self aligned silicidation, i.e. salicide
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- 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
- H01L21/26586—Bombardment with radiation with high-energy radiation producing ion implantation characterised by the angle between the ion beam and the crystal planes or the main crystal surface
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- 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
- H01L21/823412—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the channel structures, e.g. channel implants, halo or pocket implants, or channel materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- 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
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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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- H—ELECTRICITY
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- 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
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- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
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- H—ELECTRICITY
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- 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
- H01L21/823807—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the channel structures, e.g. channel implants, halo or pocket implants, or channel materials
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- H—ELECTRICITY
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- 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
- H01L21/823864—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate sidewall spacers, e.g. double spacers, particular spacer material or shape
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- H—ELECTRICITY
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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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/10—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/107—Substrate region of field-effect devices
- H01L29/1075—Substrate region of field-effect devices of field-effect transistors
- H01L29/1079—Substrate region of field-effect devices of field-effect transistors with insulated gate
- H01L29/1083—Substrate region of field-effect devices of field-effect transistors with insulated gate with an inactive supplementary region, e.g. for preventing punch-through, improving capacity effect or leakage current
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/6656—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using multiple spacer layers, e.g. multiple sidewall spacers
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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
- H01L21/71—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
- H01L21/76897—Formation of self-aligned vias or contact plugs, i.e. involving a lithographically uncritical step
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S257/00—Active solid-state devices, e.g. transistors, solid-state diodes
- Y10S257/90—MOSFET type gate sidewall insulating spacer
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- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Health & Medical Sciences (AREA)
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- Insulated Gate Type Field-Effect Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (8)
- 일도전형 반도체 기판 상에 게이트 절연막을 개재하여 형성된 게이트 전극과,상기 게이트 전극의 양측면 상에 차례로 형성되어 다른 재료로 이루어지는 제1 및 제2 절연막으로 형성되고, 또 상기 제1 및 제2 절연막의 하면이 상기 반도체 기판의 상면 사이에 상기 게이트 절연막의 두께 이상의 스페이스를 갖는 절연성 이온 주입 제어막과,상기 게이트 전극의 양측방의 상기 반도체 기판 내에 형성되어 소스와 드레인이 되는 제1 및 제2 역도전형 불순물 확산층과,상기 반도체 기판 내에서 상기 제1 및 제2 역도전형 불순물 확산층 사이이고 상기 게이트 전극의 아래쪽에 형성되는 일도전형 채널 영역과,상기 게이트 전극의 아래쪽의 상기 반도체 기판내에서 상기 제1 및 제2 역도전형 불순물 확산층의 각각의 단부에 접합되고 또 상기 채널 영역보다도 일도전형 불순물 농도가 높은 제1 및 제2 일도전형 포켓 영역을 갖는 것을 특징으로 하는 반도체 장치.
- 제1항에 있어서, 상기 소스로부터 상기 드레인 방향으로 연속하는 상기 게이트 전극의 단면은 대략 사각형인 것을 특징으로 하는 반도체 장치.
- 제1항 또는 제2항에 있어서, 상기 게이트 전극과 상기 제2 절연막 사이의 제1 절연막은, 상기 스페이스의 측방에서 상기 게이트 전극의 측면을 덮고 또 상기 스페이스의 위보다도 상기 스페이스의 측방에서 얇게 되어 있는 것을 특징으로 하는 반도체 장치.
- 제1항 내지 제3항중 어느 한 항에 있어서, 상기 이온 주입 제어막 중 상기 게이트 전극의 측면 상의 상기 제1 절연막은 2층 구조이고, 상기 스페이스의 높이보다도 두꺼운 것을 특징으로 하는 반도체 장치.
- 일도전형 반도체 기판 상에 게이트 절연막을 개재하여 게이트 전극을 형성하는 공정과,상기 반도체 기판의 상면 상과 상기 게이트 전극의 상면 상과 측방에 제1 절연막을 형성하는 공정과,상기 제1 절연막과 재료가 다른 제2 절연막을 상기 제1 절연막 상에 형성하는 공정과,상기 제2 절연막을 에칭하여 상기 게이트 전극의 측방에 남기는 공정과,상기 제2 절연막을 마스크로 사용하여 상기 제1 절연막을 선택적으로 에칭함으로써 상기 게이트 전극과 상기 제2 절연막 사이의 영역에 남김과 함께, 상기 반도체 기판의 상기 상면과 상기 제1 및 상기 제2 절연막 사이에 스페이스를 형성하는 공정과,상기 게이트 전극의 측방에 남겨진 상기 제1 및 제2 절연막과 상기 게이트 전극을 제1 마스크로 이용하여, 상기 반도체 기판의 상기 상면에 대하여 경사 방향으로부터 일도전형 불순물 이온을 상기 반도체 기판 내에 주입하여 일도전형 제1 및 제2 포켓 영역을 상기 게이트 전극의 아래쪽의 양측에 형성하는 공정과,상기 게이트 전극의 측방에 남겨진 상기 제1 및 제2 절연막과 상기 게이트 전극을 제2 마스크로 이용하여, 상기 반도체 기판 내에 역도전형 불순물을 도입함으로써 상기 반도체 기판 내에서 상기 제1 및 제2 포켓 영역 각각에 연결되어 소스/드레인이 되는 제1 및 제2 역도전형 불순물 확산 영역을 형성하는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제5항에 있어서,상기 게이트 전극의 형성 후이고 상기 제1 절연막을 형성하기 전의 공정으로,상기 반도체 기판의 상기 상면에 상기 제1 절연막과 동일한 재료로 이루어지는 제3 절연막을 형성하는 공정과,상기 제3 절연막을 이방성 에칭하여 상기 게이트 전극의 측면 상에 선택적으로 남기는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제5항 또는 제6항에 있어서,상기 제2 절연막을 에칭하여 상기 스페이스를 형성하기 전의 공정으로,상기 게이트 전극과 상기 게이트 전극의 측방의 상기 제1 및 제2 절연막을 제3 마스크로 사용하고, 상기 반도체 기판의 상기 상면 상의 상기 제2 절연막을 통해서 상기 반도체 기판 내에 역도전형 불순물을 이온 주입하여 상기 소스/드레인의 일부를 구성하는 제1 및 제2 익스텐션 영역을 형성하는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 반도체 기판 내의 일도전형 영역 상과 역도전형 영역 상에 각각 게이트 절연막을 개재하여 제1 게이트 전극과 제2 게이트 전극을 형성하는 공정과,상기 제1 게이트 전극, 상기 제2 게이트 전극 및 상기 반도체 기판의 각각의 표면 상에 제1 절연막을 형성하는 공정과,상기 제1 절연막과는 다른 재료로 이루어지는 제2 절연막을 상기 제1 절연막 상에 형성하는 공정과,상기 제2 절연막을 이방성 에칭함으로써 상기 제1 게이트 전극과 상기 제2 게이트 전극의 각각의 양측방에 상기 제2 절연막을 선택적으로 남기는 공정과,상기 제2 게이트 전극 및 상기 역도전형 영역을 제1 레지스트에 의해 덮는 공정과,상기 제1 게이트 전극과 상기 제1 게이트 전극의 양측방의 제1 및 제2 절연막을 마스크로 하여, 상기 제1 절연막을 통해 역도전형 불순물 이온을 상기 일도전형 영역 내에 주입하여 소스/드레인이 되는 역도전형의 제1 및 제2 익스텐션 영역을 상기 게이트 전극의 아래쪽의 양측에 형성하는 공정과,상기 제1 레지스트를 상기 반도체 기판 상으로부터 제거하는 공정과,상기 제1 절연막을 선택적으로 에칭함으로써, 상기 제1 게이트 전극과 상기 제2 게이트 전극의 각각의 양측면 상에 상기 제1 절연막을 남김과 함께, 상기 제1 및 제2 게이트 전극의 각각의 측방에서 상기 반도체 기판의 상면과 상기 제1 및 상기 제2 절연막 사이에 제1 스페이스와 제2 스페이스를 형성하는 공정과,상기 역도전형 영역 상과 상기 제2 게이트 전극을 제2 레지스트에 의해 선택적으로 덮는 공정과,상기 제1 게이트 전극과 상기 제1 게이트 전극의 상기 양측면 상의 상기 제1 및 제2 절연막을 마스크로 이용하여 상기 반도체 기판의 상기 상면에 대하여 경사 방향으로부터 상기 제1 스페이스를 통해 일도전형 불순물 이온을 상기 일도전형 영역 내에 주입함으로써 상기 제1 및 제2 익스텐션 영역의 단부에 각각 접속되는 일도전형의 제1 및 제2 포켓 영역을 형성하는 공정과,상기 일도전형 불순물 이온이 주입된 상기 제2 레지스트를 제거하는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
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JP2002256229A JP4628644B2 (ja) | 2001-10-04 | 2002-08-30 | 半導体装置の製造方法 |
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JP (1) | JP4628644B2 (ko) |
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US20030067045A1 (en) | 2003-04-10 |
US20040224517A1 (en) | 2004-11-11 |
CN1411076A (zh) | 2003-04-16 |
JP4628644B2 (ja) | 2011-02-09 |
KR100862816B1 (ko) | 2008-10-13 |
TW565938B (en) | 2003-12-11 |
CN1303698C (zh) | 2007-03-07 |
US7109128B2 (en) | 2006-09-19 |
JP2003179227A (ja) | 2003-06-27 |
US6800909B2 (en) | 2004-10-05 |
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