KR100829599B1 - 트랜지스터 및 이를 형성하는 방법 - Google Patents
트랜지스터 및 이를 형성하는 방법 Download PDFInfo
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- KR100829599B1 KR100829599B1 KR1020060121148A KR20060121148A KR100829599B1 KR 100829599 B1 KR100829599 B1 KR 100829599B1 KR 1020060121148 A KR1020060121148 A KR 1020060121148A KR 20060121148 A KR20060121148 A KR 20060121148A KR 100829599 B1 KR100829599 B1 KR 100829599B1
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- 238000005229 chemical vapour deposition Methods 0.000 description 4
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/66651—Lateral single gate silicon transistors with a single crystalline channel formed on the silicon substrate after insulating device isolation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body
- H01L27/08—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind
- H01L27/085—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only
- H01L27/088—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
- H01L27/092—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate complementary MIS field-effect transistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42356—Disposition, e.g. buried gate electrode
- H01L29/4236—Disposition, e.g. buried gate electrode within a trench, e.g. trench gate electrode, groove gate electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/66613—Lateral single gate silicon transistors with a gate recessing step, e.g. using local oxidation
- H01L29/66621—Lateral single gate silicon transistors with a gate recessing step, e.g. using local oxidation using etching to form a recess at the gate location
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
- H01L29/7834—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's with a non-planar structure, e.g. the gate or the source or the drain being non-planar
Abstract
Description
Claims (16)
- 기판에 소자 분리 패턴들로 한정되며 일 방향으로 연장되는 리세스(recess)를 갖는 제1 영역과, 상기 리세스 저면으로부터 돌출된 핀(fin) 형상을 갖는 제2 영역을 포함하는 액티브 패턴(active pattern);상기 제2 영역 표면상에 형성된 게이트 절연막;상기 게이트 절연막 상에 형성된 게이트 전극; 및상기 게이트 전극과 인접하는 상기 제1 영역의 표면 부위들에 형성된 소스/드레인 영역들(source/drain regions)을 포함하는 트랜지스터.
- 제1항에 있어서, 상기 제1 영역 및 제2 영역은 단결정 실리콘을 포함하는 것을 특징으로 하는 트랜지스터.
- 제1항에 있어서, 상기 제2 영역은 상기 리세스 측벽과 이격되는 것을 특징으로 하는 트랜지스터.
- 제1항에 있어서, 상기 제2 영역 상부가 곡면을 갖는 것을 특징으로 하는 트랜지스터.
- 제1항에 있어서, 상기 제2 영역은 하부로 갈수록 선폭이 증가하는 것을 특징 으로 하는 트랜지스터.
- 제1항에 있어서, 상기 게이트 전극은 리세스 내부를 채우는 하부 부위와, 상기 기판보다 돌출된 상부 부위를 포함하는 것을 특징으로 하는 트랜지스터.
- 제6항에 있어서, 상기 게이트 전극의 상부 부위 측벽에 구비된 제1 스페이서들;상기 게이트 전극의 하부 부위 측벽에 구비된 제2 스페이서들; 및상기 게이트 전극 상부에 구비된 마스크 패턴을 더 포함하는 것을 특징으로 하는 트랜지스터.
- 제7항에 있어서, 상기 제1 스페이서들, 제2 스페이서들 및 마스크 패턴은 질화물을 포함하는 것을 특징으로 하는 트랜지스터.
- 기판에 소자 분리 패턴들로 한정되며 일 방향으로 연장되는 리세스를 갖는 제1 영역과, 상기 리세스 저면으로부터 돌출된 핀 형상을 갖는 제2 영역을 포함하는 액티브 패턴을 형성하는 단계;상기 제2 영역 표면상에 게이트 절연막을 형성하는 단계;상기 게이트 절연막 상에 게이트 전극을 형성하는 단계; 및상기 게이트 전극과 인접하는 상기 제1 영역 표면 부위에 소스/드레인을 형성하는 단계를 포함하는 트랜지스터 형성 방법.
- 제9항에 있어서, 상기 기판은 단결정 실리콘을 포함하는 것을 특징으로 하는 트랜지스터 형성 방법.
- 제10항에 있어서, 상기 액티브 패턴을 형성하는 단계는,상기 소자 분리 패턴들이 형성된 기판 상에 마스크 패턴을 형성하는 단계;상기 마스크 패턴을 식각 마스크로 사용하여 상기 기판을 식각하여 상기 리세스를 형성하여 상기 제1 영역을 형성하는 단계;상기 리세스의 측벽에 스페이서들을 형성하는 단계; 및상기 리세스 저면 부위에 선택적 에피텍시얼 성장(Selective Epitaxial Growth) 공정을 수행하여 제2 영역을 형성하는 단계를 포함하는 것을 특징으로 하는 트랜지스터의 형성 방법.
- 제11항에 있어서, 상기 스페이서들은 질화물을 포함하는 것을 특징으로 하는 트랜지스터의 형성 방법.
- 제9항에 있어서, 상기 기판 상에 패드 산화막을 형성하는 단계를 더 포함하는 것을 특징으로 하는 트랜지스터의 형성 방법.
- 제9항에 있어서, 상기 게이트 전극을 형성하는 단계는,상기 리세스 내부를 매립하도록 상기 기판 상에 도전막을 형성하는 단계;상기 도전막 상에 마스크 패턴을 형성하는 단계; 및상기 마스크 패턴을 식각 마스크로 사용하여 상기 도전막을 식각하는 단계를 포함하는 트랜지스터의 형성 방법.
- 제14항에 있어서, 상기 기판 표면으로부터 돌출된 게이트 전극 측벽에 스페이서들을 형성하는 단계를 더 포함하는 것을 특징으로 하는 트랜지스터의 형성 방법.
- 제15항에 있어서, 상기 마스크 패턴 및 스페이서들은 질화물을 포함하는 것을 특징으로 하는 트랜지스터의 형성 방법.
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KR1020060121148A KR100829599B1 (ko) | 2006-12-04 | 2006-12-04 | 트랜지스터 및 이를 형성하는 방법 |
US11/944,819 US7790548B2 (en) | 2006-12-04 | 2007-11-26 | Methods of fabricating field effect transistors including recessed forked gate structures |
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KR1020060121148A KR100829599B1 (ko) | 2006-12-04 | 2006-12-04 | 트랜지스터 및 이를 형성하는 방법 |
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KR20160136042A (ko) * | 2015-05-19 | 2016-11-29 | 삼성전자주식회사 | 반도체 소자 |
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KR102389813B1 (ko) * | 2015-05-19 | 2022-04-22 | 삼성전자주식회사 | 반도체 소자 |
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