KR100585111B1 - 게르마늄 채널 영역을 가지는 비평면 트랜지스터 및 그제조 방법 - Google Patents
게르마늄 채널 영역을 가지는 비평면 트랜지스터 및 그제조 방법 Download PDFInfo
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- KR100585111B1 KR100585111B1 KR1020030083623A KR20030083623A KR100585111B1 KR 100585111 B1 KR100585111 B1 KR 100585111B1 KR 1020030083623 A KR1020030083623 A KR 1020030083623A KR 20030083623 A KR20030083623 A KR 20030083623A KR 100585111 B1 KR100585111 B1 KR 100585111B1
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- 229910052732 germanium Inorganic materials 0.000 title claims abstract description 16
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 37
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 56
- 239000010703 silicon Substances 0.000 claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 229910021332 silicide Inorganic materials 0.000 claims description 15
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 15
- 238000000231 atomic layer deposition Methods 0.000 claims description 6
- 238000005229 chemical vapour deposition Methods 0.000 claims description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 6
- 229920005591 polysilicon Polymers 0.000 claims description 6
- 238000000407 epitaxy Methods 0.000 claims description 4
- 150000004767 nitrides Chemical class 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 8
- 125000006850 spacer group Chemical group 0.000 description 7
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- -1 or Si 3 N 4 Inorganic materials 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000001289 rapid thermal chemical vapour deposition Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005468 ion implantation Methods 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
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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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
- H01L29/68—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
-
- 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
- H01L29/68—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
- H01L29/785—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
-
- 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
- H01L29/02—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
- H01L29/1025—Channel region of field-effect devices
- H01L29/1029—Channel region of field-effect devices of field-effect transistors
- H01L29/1033—Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure
- H01L29/1054—Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure with a variation of the composition, e.g. channel with strained layer for increasing the mobility
-
- 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
- H01L29/66787—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel
- H01L29/66795—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
-
- 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
- H01L29/68—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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78684—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising semiconductor materials of Group IV not being silicon, or alloys including an element of the group IV, e.g. Ge, SiN alloys, SiC alloys
- H01L29/78687—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising semiconductor materials of Group IV not being silicon, or alloys including an element of the group IV, e.g. Ge, SiN alloys, SiC alloys with a multilayer structure or superlattice structure
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- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Thin Film Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (42)
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- 기판 위에 형성되어 있고 양 측벽 및 상면을 가지는 실리콘 바디(body)와,상기 실리콘 바디 위에서 상기 실리콘 바디의 양 측벽 및 상면을 동시에 덮는 게르마늄층으로 이루어지는 채널 영역과,상기 채널 영역중 서로 다른 면 방향을 가지는 3개의 영역을 각각 덮는 제1 게이트, 제2 게이트 및 제3 게이트를 포함하는 트리-게이트 구조의 게이트와,상기 채널 영역과 상기 게이트와의 사이에 개재되어 있고 GexOyNz 또는 GexSiyOz로 이루어지는 게이트 절연막과,상기 실리콘 바디에서 상기 채널 영역의 양 측에 형성된 소스/드레인 영역을 포함하는 것을 특징으로 하는 비평면 트랜지스터.
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- 제16항에 있어서,상기 채널 영역은 상기 실리콘 바디의 양 측벽 위에서 상기 기판의 주면 연장 방향과 수직을 이루는 면 방향에 따라 각각 연장되어 있는 제1 채널 영역 및 제2 채널 영역과, 상기 실리콘 바디의 상면 위에서 상기 기판의 주면 연장 방향과 평행한 면 방향에 따라 연장되어 있는 제3 채널 영역을 포함하는 것을 특징으로 하는 비평면 트랜지스터.
- 제19항에 있어서,상기 제1 게이트는 상기 제1 채널 영역 위에 형성되어 있고, 상기 제2 게이트는 상기 제2 채널 영역 위에 형성되어 있고, 상기 제3 게이트는 상기 제3 채널 영역 위에 형성되어 있는 것을 특징으로 하는 비평면 트랜지스터.
- 제16항에 있어서,상기 제1 게이트, 제2 게이트 및 제3 게이트는 상호 전기적으로 연결되어 있는 것을 특징으로 하는 비평면 트랜지스터.
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- 제16항에 있어서,상기 게이트는 도전성 폴리실리콘막, 금속막, 금속 질화물막 또는 금속 실리사이드막으로 이루어지는 것을 특징으로 하는 비평면 트랜지스터.
- 제16항에 있어서,상기 게이트는 도전성 폴리실리콘막과, 그 위에 형성된 제1 금속 실리사이드막과의 적층 구조로 이루어지는 것을 특징으로 하는 비평면 트랜지스터.
- 제16항에 있어서,상기 소스/드레인 영역 위에 형성되어 있는 제2 금속 실리사이드막을 더 포함하는 것을 특징으로 하는 비평면 트랜지스터.
- 제16항에 있어서,상기 실리콘 바디는 상기 기판상의 절연막 위에 형성되어 있는 것을 특징으로 하는 비평면 트랜지스터.
- 제27항에 있어서,상기 절연막은SOI (silicon-on-insulator) 기판의 매몰 산화막(buried oxide film)으로 구성되고,상기 실리콘 바디는 SOI 층으로 구성되는 것을 특징으로 하는 비평면 트랜지스터.
- 기판상에 양 측벽 및 상면을 가지는 메사형 활성 영역을 형성하는 단계와,상기 활성 영역의 양 측벽 및 상면을 덮도록 연장되고 게르마늄층으로 이루어지는 채널 영역을 형성하는 단계와,상기 채널 영역 위에 GexOyNz 또는 GexSiyOz로 이루어지는 게이트 절연막을 형성하는 단계와,상기 채널 영역중 서로 다른 면 방향을 가지는 3개의 영역을 각각 덮는 제1 게이트, 제2 게이트 및 제3 게이트를 포함하는 트리-게이트 구조의 게이트를 상기 게이트 절연막 위에 형성하는 단계와,상기 활성 영역 내에 소스/드레인 영역을 형성하는 단계를 포함하는 것을 특징으로 하는 비평면 트랜지스터의 제조 방법.
- 제29항에 있어서,상기 활성 영역은SOI층으로 구성되는 것을 특징으로 하는 비평면 트랜지스터의 제조 방법.
- 제29항에 있어서,상기 채널 영역은 선택적 에피택시 성장 방법에 의하여 상기 활성 영역의 표면 위에만 형성되는 것을 특징으로 하는 비평면 트랜지스터의 제조 방법.
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- 제29항에 있어서,상기 채널 영역을 형성하는 단계에서는 상기 활성 영역의 양 측벽 위에서 상기 기판의 주면 연장 방향과 수직을 이루는 면 방향에 따라 각각 연장되고 상기 채널 영역의 일부로 구성되는 제1 채널 영역 및 제2 채널 영역과, 상기 활성 영역의 상면 위에서 상기 제1 채널 영역과 제2 채널 영역과의 사이에 형성되고 상기 채널 영역의 다른 일부로 구성되는 제3 채널 영역이 동시에 형성되는 것을 특징으로 하는 비평면 트랜지스터의 제조 방법.
- 제36항에 있어서,상기 제1 게이트는 상기 제1 채널 영역 위에 형성되고, 상기 제2 게이트는 상기 제2 채널 영역 위에 형성되고, 상기 제3 게이트는 상기 제3 채널 영역 위에 형성되는 것을 특징으로 하는 비평면 트랜지스터의 제조 방법.
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- 제29항에 있어서,상기 게이트 절연막은 상기 채널 영역의 표면으로부터 열산화 방법에 의하여 성장된 막으로 이루어지는 것을 특징으로 하는 비평면 트랜지스터의 제조 방법.
- 제29항에 있어서,상기 게이트 절연막은 CVD (chemical vapor deposition) 또는 ALD (atomic layer deposition) 방법에 의하여 형성된 막으로 이루어지는 것을 특징으로 하는 비평면 트랜지스터의 제조 방법.
- 제29항에 있어서,상기 게이트는 상기 활성 영역과의 사이에 상기 채널 영역 및 게이트 절연막이 개재된 상태에서 상기 활성 영역의 양 측벽 및 상면을 동시에 덮도록 형성되는 것을 특징으로 하는 비평면 트랜지스터의 제조 방법.
- 제29항에 있어서,상기 게이트는 도전성 폴리실리콘막, 금속막, 금속 질화물막 또는 금속 실리사이드막으로 이루어지는 것을 특징으로 하는 비평면 트랜지스터의 제조 방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030083623A KR100585111B1 (ko) | 2003-11-24 | 2003-11-24 | 게르마늄 채널 영역을 가지는 비평면 트랜지스터 및 그제조 방법 |
US10/997,440 US7214993B2 (en) | 2003-11-24 | 2004-11-23 | Non-planar transistor having germanium channel region and method of manufacturing the same |
JP2004339572A JP2005159362A (ja) | 2003-11-24 | 2004-11-24 | ゲルマニウムチャンネル領域を有する非平面トランジスタ及びその製造方法 |
CNA2004100953704A CN1622336A (zh) | 2003-11-24 | 2004-11-24 | 具有锗沟道区域的非平面晶体管及其制备方法 |
US11/731,259 US7550332B2 (en) | 2003-11-24 | 2007-03-30 | Non-planar transistor having germanium channel region and method of manufacturing the same |
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KR1020030083623A KR100585111B1 (ko) | 2003-11-24 | 2003-11-24 | 게르마늄 채널 영역을 가지는 비평면 트랜지스터 및 그제조 방법 |
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KR20050049866A KR20050049866A (ko) | 2005-05-27 |
KR100585111B1 true KR100585111B1 (ko) | 2006-06-01 |
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US (2) | US7214993B2 (ko) |
JP (1) | JP2005159362A (ko) |
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US7674661B2 (en) | 2006-09-19 | 2010-03-09 | Samsung Electronics Co., Ltd. | Memory device and method of manufacturing the same |
US9245990B2 (en) | 2013-11-29 | 2016-01-26 | Gachon University Of Industry-Academic Cooperation Foundation | Silicon-compatible germanium-based transistor with high-hole-mobility |
US9935189B2 (en) | 2015-11-09 | 2018-04-03 | Gachon University Of Industry—Academic Cooperation Foundation | Transistor having germanium channel on silicon nanowire and fabrication method thereof |
KR101846991B1 (ko) * | 2016-08-11 | 2018-04-09 | 가천대학교 산학협력단 | 벌크 실리콘 기반의 실리콘 게르마늄 p-채널 삼중 게이트 트랜지스터 및 그 제조방법 |
US10991813B1 (en) | 2019-10-24 | 2021-04-27 | Gachon University Of Industry-Academic Cooperation Foundation | Fabrication method of semiconductor device having SIGe shell channel and semiconductor device fabricated by the same |
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US20050116218A1 (en) | 2005-06-02 |
JP2005159362A (ja) | 2005-06-16 |
US7214993B2 (en) | 2007-05-08 |
US20080050865A1 (en) | 2008-02-28 |
CN1622336A (zh) | 2005-06-01 |
US7550332B2 (en) | 2009-06-23 |
KR20050049866A (ko) | 2005-05-27 |
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