KR100558041B1 - 반도체 소자의 트랜지스터 및 그 제조 방법 - Google Patents
반도체 소자의 트랜지스터 및 그 제조 방법 Download PDFInfo
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- KR100558041B1 KR100558041B1 KR1020030057120A KR20030057120A KR100558041B1 KR 100558041 B1 KR100558041 B1 KR 100558041B1 KR 1020030057120 A KR1020030057120 A KR 1020030057120A KR 20030057120 A KR20030057120 A KR 20030057120A KR 100558041 B1 KR100558041 B1 KR 100558041B1
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- Prior art keywords
- low concentration
- trench
- forming
- semiconductor substrate
- region
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims description 20
- 238000002955 isolation Methods 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 claims description 13
- 238000005530 etching Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 74
- 230000010354 integration Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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Classifications
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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
- H01L29/66007—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
-
- 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 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
-
- 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
- H01L29/02—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
-
- 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 (10)
- 반도체 기판의 일정영역에 형성되는 소자분리막;상기 소자분리막이 형성되지 않은 활성영역 반도체 기판의 일영역상에 형성된 게이트;상기 게이트 양측 활성영역의 반도체 기판에 형성된 트렌치;상기 트렌치 측면 및 저면의 반도체 기판 표면내에 형성는 저농도 소오스 및 드레인 영역;상기 트렌치 저면의 저농도 소오스 및 드레인 영역내에 형성된 고농도 소오스 및 드레인 영역; 및상기 게이트 하부의 반도체 기판에 문턱 전압을 조절하기 위하여 형성된 드리프트 정션을 포함하는 반도체 소자의 트랜지스터.
- 제 1 항에 있어서,상기 게이트의 측벽에 형성된 절연막 스페이서를 더 포함하는 반도체 소자의 트랜지스터.
- 제 2 항에 있어서,상기 절연막 스페이서가 상기 트렌치의 측벽까지 형성된 반도체 소자의 트랜지스터.
- 삭제
- 삭제
- 반도체 기판에 소자분리막을 형성하여 반도체 기판을 활성영역과 필드 영역으로 구분하는 단계;상기 반도체 기판의 소오스/드레인 영역에 저농도 소오스 및 드레인 영역을 형성하는 단계;상기 저농도 소오스 영역과 저농도 드레인 영역내에 상기 소자분리막과 인접하도록 트렌치들을 형성하는 단계;상기 저농도 소오스 영역과 저농도 드레인 영역 사이의 상기 반도체 기판에 문턱 전압을 조절하기 위한 드리프트 정션을 형성하는 단계;상기 트렌치들 사이의 상기 반도체 기판 상에 게이트를 형성하는 단계; 및상기 트렌치의 저면의 저농도 소오스 및 드레인 영역내에 고농도 소오스 및 드레인 영역을 형성하는 단계를 포함하는 반도체 소자의 트랜지스터 제조 방법.
- 제 6 항에 있어서,상기 트렌치는 상기 저농도 소오스 및 드레인 영역보다 얕은 깊이로 형성하는 반도체 소자의 트랜지스터 제조 방법.
- 제 6 항에 있어서,상기 트렌치는 상기 저농도 소오스 및 드레인 영역의 폭보다 5um 이하의 좁은 폭으로 형성하는 반도체 소자의 트랜지스터 제조 방법.
- 삭제
- 제 6 항에 있어서, 상기 고농도 소오스 및 드레인 영역을 형성하기 전에,전체 상부에 절연막을 형성한 후 전면 식각 공정을 실시하여 상기 게이트의 측벽에 절연막 스페이서를 형성하는 단계를 더 포함하는 반도체 소자의 트랜지스터 제조 방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030057120A KR100558041B1 (ko) | 2003-08-19 | 2003-08-19 | 반도체 소자의 트랜지스터 및 그 제조 방법 |
US10/876,729 US7687854B2 (en) | 2003-08-19 | 2004-06-28 | Transistor in a semiconductor substrate having high-concentration source and drain region formed at the bottom of a trench adjacent to the gate electrode |
US12/704,402 US7919380B2 (en) | 2003-08-19 | 2010-02-11 | Method of manufacturing a transistor in semiconductor device having a gate electrode located between the trenches formed in low-concentration regions of the source and drain regions including high-concentration regions formed at the bottom of the trenches |
Applications Claiming Priority (1)
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KR1020030057120A KR100558041B1 (ko) | 2003-08-19 | 2003-08-19 | 반도체 소자의 트랜지스터 및 그 제조 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20050019390A KR20050019390A (ko) | 2005-03-03 |
KR100558041B1 true KR100558041B1 (ko) | 2006-03-07 |
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KR1020030057120A KR100558041B1 (ko) | 2003-08-19 | 2003-08-19 | 반도체 소자의 트랜지스터 및 그 제조 방법 |
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US (2) | US7687854B2 (ko) |
KR (1) | KR100558041B1 (ko) |
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KR100533980B1 (ko) * | 2004-06-30 | 2005-12-07 | 주식회사 하이닉스반도체 | 메모리 소자 및 그 제조 방법 |
KR100641555B1 (ko) * | 2004-12-30 | 2006-10-31 | 동부일렉트로닉스 주식회사 | 트랜치 소스 구조를 갖는 수평형 디모스 트랜지스터 |
TWI254409B (en) * | 2005-02-16 | 2006-05-01 | Powerchip Semiconductor Corp | Semiconductor device having self-aligned contact and manufacturing method thereof |
US20060220120A1 (en) * | 2005-03-31 | 2006-10-05 | Impinj, Inc. | High voltage LDMOS device with counter doping |
KR20060108298A (ko) * | 2005-04-12 | 2006-10-17 | 매그나칩 반도체 유한회사 | 반도체 소자 및 그 제조방법 |
US8167805B2 (en) * | 2005-10-20 | 2012-05-01 | Kona Medical, Inc. | Systems and methods for ultrasound applicator station keeping |
KR100679829B1 (ko) * | 2005-12-29 | 2007-02-06 | 동부일렉트로닉스 주식회사 | 반도체 소자의 트랜지스터 제조방법 |
KR100752169B1 (ko) * | 2005-12-29 | 2007-08-24 | 동부일렉트로닉스 주식회사 | 고전압용 반도체 트랜지스터 소자 및 그 제조방법 |
KR100661228B1 (ko) | 2005-12-29 | 2006-12-22 | 동부일렉트로닉스 주식회사 | 트랜지스터 형성 방법 |
KR101147389B1 (ko) * | 2005-12-29 | 2012-05-22 | 매그나칩 반도체 유한회사 | 카운트 드리프트 영역을 구비한 고전압 수평형 확산 모스트랜지스터 |
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2003
- 2003-08-19 KR KR1020030057120A patent/KR100558041B1/ko active IP Right Grant
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2004
- 2004-06-28 US US10/876,729 patent/US7687854B2/en active Active
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- 2010-02-11 US US12/704,402 patent/US7919380B2/en active Active
Also Published As
Publication number | Publication date |
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KR20050019390A (ko) | 2005-03-03 |
US20050040490A1 (en) | 2005-02-24 |
US7687854B2 (en) | 2010-03-30 |
US7919380B2 (en) | 2011-04-05 |
US20100144109A1 (en) | 2010-06-10 |
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