KR101037691B1 - 반도체 소자 및 그의 제조방법 - Google Patents
반도체 소자 및 그의 제조방법 Download PDFInfo
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- KR101037691B1 KR101037691B1 KR1020040001543A KR20040001543A KR101037691B1 KR 101037691 B1 KR101037691 B1 KR 101037691B1 KR 1020040001543 A KR1020040001543 A KR 1020040001543A KR 20040001543 A KR20040001543 A KR 20040001543A KR 101037691 B1 KR101037691 B1 KR 101037691B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 49
- 229910021332 silicide Inorganic materials 0.000 claims abstract description 35
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims abstract description 35
- 125000006850 spacer group Chemical group 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 27
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 22
- 239000010941 cobalt Substances 0.000 claims abstract description 22
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000000151 deposition Methods 0.000 claims abstract description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 7
- 229920005591 polysilicon Polymers 0.000 claims abstract description 7
- 239000010936 titanium Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 18
- 229920002120 photoresistant polymer Polymers 0.000 description 9
- 239000012535 impurity Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910005883 NiSi Inorganic materials 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910021341 titanium silicide Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910019001 CoSi Inorganic materials 0.000 description 1
- 229910008814 WSi2 Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 1
- 229910021342 tungsten silicide Inorganic materials 0.000 description 1
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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
- H01L21/02—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
- H01L21/28026—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor
- H01L21/28035—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being silicon, e.g. polysilicon, with or without impurities
- H01L21/28044—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being silicon, e.g. polysilicon, with or without impurities the conductor comprising at least another non-silicon conductive layer
- H01L21/28061—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being silicon, e.g. polysilicon, with or without impurities the conductor comprising at least another non-silicon conductive layer the conductor comprising a metal or metal silicide formed by deposition, e.g. sputter deposition, i.e. without a silicidation reaction
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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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02052—Wet cleaning only
-
- 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
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
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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
- H01L21/823418—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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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
- H01L29/66007—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
- 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
- H01L29/66568—Lateral single gate silicon transistors
- H01L29/66575—Lateral single gate silicon transistors where the source and drain or source and drain extensions are self-aligned to the sides of the gate
- H01L29/6659—Lateral single gate silicon transistors where the source and drain or source and drain extensions are self-aligned to the sides of the gate with both lightly doped source and drain extensions and source and drain self-aligned to the sides of the gate, e.g. lightly doped drain [LDD] MOSFET, double diffused drain [DDD] MOSFET
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- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
또한, 본 발명은 게이트 전극 상부에 발생하는 보이드 및 응력을 억제할 수 있는 반도체 소자 및 그의 제조방법을 제공함에 그 다른 목적이 있다.
본 발명에 따른 반도체 소자의 제조방법은, 상기 스페이서를 포함한 게이트 전극 양측의 기판 표면 내에 소오스/드레인 영역을 형성하는 단계 후, 상기 스페이서에 가려지지 않은 게이트 전극 상부 및 기판의 소오스/드레인 영역의 표면을 비정질화시키는 단계전, 상기 반도체 기판을 HF 및 H2O의 혼합 용액으로 세정하는 단계를 더 포함한다.
또한, 상기와 같은 목적을 달성하기 위하여, 본 발명은, 반도체 기판 상에 형성된 폴리실리콘 게이트 전극; 상기 게이트 전극 양측의 기판 표면 내에 형성된 LDD 영역; 상기 게이트 전극의 양측 벽에 상기 게이트 전극 보다 낮은 높이로 상기 게이트 전극의 양측면을 노출시키도록 형성된 스페이서; 상기 스페이서를 포함한 게이트 전극 양측의 기판 표면 내에 형성된 소오스/드레인 영역; 및 상기 스페이서에 가려지지 않은 게이트 전극 상부 표면 및 측부 표면과 상기 소오스/드레인 영역 표면 상에 형성된 실리사이드막;을 포함하며, 상기 게이트 전극 상에 형성된 실리사이드막은 상기 게이트 전극 보다 큰 폭을 갖는 것을 특징으로 하는 반도체 소자를 제공한다.
Claims (6)
- 반도체 기판 상에 폴리실리콘 게이트 전극을 형성하는 단계;상기 게이트 전극 양측의 기판 표면 내에 LDD 영역을 형성하는 단계;상기 게이트 전극의 양측 벽에 상기 게이트 전극 보다 낮은 높이로 상기 게이트 전극의 양측면을 노출시키도록 스페이서를 형성하는 단계;상기 스페이서를 포함한 게이트 전극 양측의 기판 표면 내에 소오스/드레인 영역을 형성하는 단계;상기 스페이서에 가려지지 않은 게이트 전극 상부 및 기판의 소오스/드레인 영역의 표면을 비정질화시키는 단계;상기 게이트 전극을 포함한 기판 전면에 금속막을 증착하는 단계;상기 금속막이 증착된 기판 결과물을 열처리하여 비정질화된 게이트 전극 상부 표면 및 측부 표면과 상기 소오스/드레인 영역 표면에 실리사이드막을 형성하는 단계; 및상기 실리사이드막 형성을 위한 기판 열처리시에 미반응한 금속막을 제거하는 단계;를 포함하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1 항에 의하여, 상기 스페이서는 게이트 전극 보다 180~220Å 낮은 높이로 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1 항에 의하여, 상기 스페이서를 포함한 게이트 전극 양측의 기판 표면 내에 소오스/드레인 영역을 형성하는 단계 후, 상기 스페이서에 가려지지 않은 게이트 전극 상부 및 기판의 소오스/드레인 영역의 표면을 비정질화시키는 단계 전, 상기 반도체 기판을 HF 및 H2O의 혼합 용액으로 세정하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1 항에 의하여, 상기 금속막은 코발트(Co) 및 티타늄(Ti 또는 TiN)의 이중구조로 증착하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1 항에 의하여, 상기 금속막은 120~240Å의 두께로 증착하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 삭제
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20000000889A (ko) * | 1998-06-05 | 2000-01-15 | 윤종용 | 반도체 소자 제조방법 |
KR20020045010A (ko) * | 2000-12-07 | 2002-06-19 | 윤종용 | 코발트 실리사이드 층을 갖는 트랜지스터 및 그 제조 방법 |
KR20020061724A (ko) * | 2001-01-17 | 2002-07-25 | 삼성전자 주식회사 | 반도체 소자의 제조 방법 |
KR20030050783A (ko) * | 2001-12-19 | 2003-06-25 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20000000889A (ko) * | 1998-06-05 | 2000-01-15 | 윤종용 | 반도체 소자 제조방법 |
KR20020045010A (ko) * | 2000-12-07 | 2002-06-19 | 윤종용 | 코발트 실리사이드 층을 갖는 트랜지스터 및 그 제조 방법 |
KR20020061724A (ko) * | 2001-01-17 | 2002-07-25 | 삼성전자 주식회사 | 반도체 소자의 제조 방법 |
KR20030050783A (ko) * | 2001-12-19 | 2003-06-25 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
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