KR100517555B1 - 살리사이드층을 포함하는 반도체 소자 및 그 제조방법 - Google Patents
살리사이드층을 포함하는 반도체 소자 및 그 제조방법 Download PDFInfo
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- KR100517555B1 KR100517555B1 KR10-2003-0000072A KR20030000072A KR100517555B1 KR 100517555 B1 KR100517555 B1 KR 100517555B1 KR 20030000072 A KR20030000072 A KR 20030000072A KR 100517555 B1 KR100517555 B1 KR 100517555B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 125000006850 spacer group Chemical group 0.000 claims abstract description 86
- 238000002955 isolation Methods 0.000 claims abstract description 57
- 229910021332 silicide Inorganic materials 0.000 claims abstract description 41
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims abstract description 40
- 230000000903 blocking effect Effects 0.000 claims abstract description 35
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- 239000012535 impurity Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 38
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 24
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 20
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- 239000010410 layer Substances 0.000 description 91
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 238000001020 plasma etching Methods 0.000 description 3
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- 239000010703 silicon Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- 229910008484 TiSi Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 229910017052 cobalt Inorganic materials 0.000 description 1
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- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
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- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
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- H01L21/8232—Field-effect technology
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- H01L21/823443—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the gate conductors, e.g. particular materials, shapes silicided or salicided gate conductors
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
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- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
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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
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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
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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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- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823481—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type isolation region manufacturing related aspects, e.g. to avoid interaction of isolation region with adjacent structure
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- 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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- 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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Abstract
Description
Claims (10)
- 반도체 기판에 형성되어 활성영역을 한정하는 트렌치 소자분리막;상기 활성영역 상에 형성된 게이트 패턴;상기 게이트 패턴 양측의 활성영역 내에 형성된 소오스/드레인 영역;상기 게이트 패턴의 측벽에 형성된 측벽스페이서;상기 소자분리막 상부와 상기 소자분리막에 인접한 상기 활성영역의 일부분 상에 형성된 블로킹절연막;및상기 블로킹절연막과 상기 측벽스페이서 사이의 상기 소오스/드레인영역에 형성되고, 상기 블로킹절연막의 가장자리 및 상기 측벽스페이서의 가장자리에 정렬된 경계를 갖는 실리사이드층을 포함하는 반도체 소자.
- 제1 항에 있어서,상기 소자분리막은 상기 활성영역에 인접한 부분에 덴트를 가지고,상기 블로킹절연막은 상기 덴트 상에 형성된 것을 특징으로 하는 반도체 소자.
- 제1 항 또는 제2 항에 있어서,상기 측벽스페이서는,상기 게이트 패턴의 측벽에 접하며 상기 게이트 패턴에 인접한 상기 활성영역 상에 형성된 L자형 단면의 내부스페이서;및상기 내부 스페이서 상에 형성된 곡면측벽(curved sidewall)을 갖는 외부스페이서(outer spacer)를 포함하는 것을 특징으로 하는 반도체 소자.
- 제1 항 또는 제2 항에 있어서,상기 게이트 패턴 상부면에 형성된 실리사이드층을 더 포함하는 것을 특징으로 하는 반도체 소자.
- 반도체 기판에 트렌치 소자분리막을 형성하여 활성영역을 한정하는 단계;상기 활성영역 상에 게이트 패턴을 형성하는 단계;상기 게이트 패턴 양측의 상기 활성영역 내에 불순물을 주입하는 단계;상기 게이트 패턴을 포함하는 반도체 기판 전면에 스페이서 절연막을 형성하되, 상기 스페이서 절연막은 상기 소자분리막으로부터 상기 게이트 패턴으로 향할수록 두께가 얇아지는 영역을 갖도록 형성하는 단계;상기 스페이서 절연막을 이방성식각하여 상기 게이트 패턴의 측벽에 측벽스페이서를 형성함과 동시에, 상기 소자분리막 및 상기 소자분리막에 인접한 상기 활성영역의 일부분 상에 블로킹절연막을 잔존시키는 단계;및상기 반도체 기판에 실리사이드화 공정을 적용하여 상기 블로킹절연막과 상기 측벽스페이서 사이의 상기 소오스/드레인영역에 상기 블로킹절연막의 가장자리 및 상기 측벽스페이서의 가장자리에 정렬된 경계를 갖는 실리사이드층을 형성하는 단계를 포함하는 반도체 소자의 제조방법.
- 제5 항에 있어서,상기 스페이서 절연막은 실리콘질화막 및 실리콘산화막을 적층하여 형성하되, 상기 실리콘질화막 및 상기 실리콘산화막 중 적어도 하나는 상기 소자분리막으로부터 상기 게이트 패턴으로 향할수록 두께가 얇아지는 영역을 갖도록 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제6 항에 있어서,상기 측벽스페이서를 형성하는 단계는,상기 실리콘산화막을 이방성 식각하여 상기 게이트 전극 양측에 곡면측벽(curved sidewall)을 갖는 외부스페이서(outer spacer)를 형성하는 단계;및상기 외부스페이서를 식각방지막으로 사용하여 상기 실리콘질화막을 식각하여 상기 외부스페이서와 상기 게이트 패턴 사이에 개재된 L자형 단면의 내부스페이서를 형성하는 단계를 포함하는 반도체 소자의 제조방법.
- 제5 항에 있어서,상기 스페이서절연막을 형성하는 단계는,상기 반도체 기판 상에 실리콘질화막을 콘포말하게 형성하는 단계;및상기 실리콘질화막 상에 실리콘산화막을 형성하되, 상기 실리콘산화막은 상기 소자분리막으로부터 상기 게이트 패턴으로 향할수록 두께가 얇아지는 영역을 갖도록 형성하는 단계를 포함하고,상기 측벽스페이서 및 블로킹절연막을 형성하는 단계는,상기 실리콘산화막을 이방성 식각하여 상기 게이트패턴 측벽에 외부스페이서를 형성하고, 상기 소자분리막 및 상기 소자분리막에 인접한 활성영역의 일부분 상부에 블로킹산화막을 형성하는 단계;및상기 외부스페이서 및 상기 블로킹산화막을 식각마스크로 사용하여 상기 실리콘질화막을 식각하여 상기 외부스페이서 및 상기 게이트 패턴 사이에 개재된 내부스페이서와, 상기 산화막 스페이서 하부에 개재된 블로킹질화막을 형성하는 단계를 포함하는 반도체 소자의 제조방법.
- 제5 항에 있어서,상기 스페이서절연막을 형성하는 단계는,상기 반도체 기판 상에 실리콘질화막을 형성하되, 상기 실리콘질화막은 상기 소자분리막으로부터 상기 게이트 패턴으로 향할수록 두께가 얇아지는 영역을 갖도록 형성하는 단계;및상기 실리콘질화막 상에 실리콘산화막을 콘포말하게 형성하는 단계를 포함하고,상기 측벽스페이서 및 블로킹절연막을 형성하는 단계는,상기 실리콘산화막을 이방성 식각하여 상기 게이트패턴 측벽에 외부스페이서를 형성하는 단계;및상기 외부스페이서를 식각마스크로 사용하여 상기 실리콘질화막을 식각하여 상기 외부스페이서 및 상기 게이트 패턴 사이에 개재된 내부스페이서와, 상기 소자분리막 및 상기 소자분리막에 인접한 활성영역의 일부분 상에 블로킹질화막을 형성하는 단계를 포함하는 반도체 소자의 제조방법.
- 제5 항에 있어서,상기 측벽스페이서를 형성하는 단계에서,상기 소자분리막에 인접한 활성영역 상의 스페이서 절연막의 식각속도보다 상기 게이트 패턴에 인접한 활성영역 상의 상기 스페이서 절연막의 식각속도가 더 빠르게 이방성 식각하는 것을 특징으로 하는 반도체 소자의 제조방법.
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KR10-2003-0000072A KR100517555B1 (ko) | 2003-01-02 | 2003-01-02 | 살리사이드층을 포함하는 반도체 소자 및 그 제조방법 |
US10/750,983 US7439593B2 (en) | 2003-01-02 | 2004-01-02 | Semiconductor device having silicide formed with blocking insulation layer |
US12/167,906 US7723194B2 (en) | 2003-01-02 | 2008-07-03 | Semiconductor device having silicide layers and method of fabricating the same |
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KR10-2003-0000072A KR100517555B1 (ko) | 2003-01-02 | 2003-01-02 | 살리사이드층을 포함하는 반도체 소자 및 그 제조방법 |
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KR100517555B1 true KR100517555B1 (ko) | 2005-09-28 |
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US7759726B2 (en) * | 2005-07-12 | 2010-07-20 | Macronix International Co., Ltd. | Non-volatile memory device, non-volatile memory cell thereof and method of fabricating the same |
JP5145672B2 (ja) * | 2006-02-27 | 2013-02-20 | 富士通セミコンダクター株式会社 | 半導体装置の製造方法 |
DE102009039522B4 (de) * | 2009-08-31 | 2015-08-13 | GLOBALFOUNDRIES Dresden Module One Ltd. Liability Company & Co. KG | Verfahren zur Herstellung eines Halbleiterbauelements mit vergrabener Ätzstoppschicht in Grabenisolationsstrukturen für eine bessere Oberflächenebenheit in dicht gepackten Halbleiterbauelementen |
US9159802B2 (en) * | 2012-05-14 | 2015-10-13 | Taiwan Semiconductor Manufacturing Company, Ltd. | MOS devices with mask layers and methods for forming the same |
KR20150005327A (ko) | 2013-07-05 | 2015-01-14 | 삼성디스플레이 주식회사 | 표시 기판 및 표시 기판의 제조 방법 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US5045916A (en) * | 1985-01-22 | 1991-09-03 | Fairchild Semiconductor Corporation | Extended silicide and external contact technology |
US5208472A (en) * | 1988-05-13 | 1993-05-04 | Industrial Technology Research Institute | Double spacer salicide MOS device and method |
US5153145A (en) * | 1989-10-17 | 1992-10-06 | At&T Bell Laboratories | Fet with gate spacer |
JPH05304108A (ja) | 1992-04-24 | 1993-11-16 | Sony Corp | 半導体装置及び半導体装置の製造方法 |
JP3514500B2 (ja) * | 1994-01-28 | 2004-03-31 | 株式会社ルネサステクノロジ | 半導体装置及びその製造方法 |
TW368731B (en) * | 1997-12-22 | 1999-09-01 | United Microelectronics Corp | Manufacturing method for self-aligned local-interconnect and contact |
US5989965A (en) * | 1998-02-13 | 1999-11-23 | Sharp Laboratories Of America, Inc. | Nitride overhang structures for the silicidation of transistor electrodes with shallow junction |
US6025267A (en) * | 1998-07-15 | 2000-02-15 | Chartered Semiconductor Manufacturing, Ltd. | Silicon nitride--TEOS oxide, salicide blocking layer for deep sub-micron devices |
US6297126B1 (en) * | 1999-07-12 | 2001-10-02 | Chartered Semiconductor Manufacturing Ltd. | Silicon nitride capped shallow trench isolation method for fabricating sub-micron devices with borderless contacts |
US6249138B1 (en) * | 1999-11-23 | 2001-06-19 | United Microelectronics Corp. | Method for testing leakage current caused self-aligned silicide |
US6339018B1 (en) * | 2000-03-09 | 2002-01-15 | International Business Machines Corporation | Silicide block bounded device |
US6399245B1 (en) * | 2000-06-21 | 2002-06-04 | Eveready Battery Company, Inc. | Electrochemical cell with an anode containing sulfur |
JP2002198520A (ja) * | 2000-12-25 | 2002-07-12 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
JP2002198525A (ja) * | 2000-12-27 | 2002-07-12 | Toshiba Corp | 半導体装置及びその製造方法 |
KR100438788B1 (ko) * | 2002-06-12 | 2004-07-05 | 삼성전자주식회사 | 반도체 장치 및 그의 제조방법 |
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2004
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Also Published As
Publication number | Publication date |
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US7439593B2 (en) | 2008-10-21 |
US20040217428A1 (en) | 2004-11-04 |
US7723194B2 (en) | 2010-05-25 |
US20080268598A1 (en) | 2008-10-30 |
KR20040062275A (ko) | 2004-07-07 |
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