KR20040059769A - 모스트랜지스터 및 그 제조 방법 - Google Patents
모스트랜지스터 및 그 제조 방법 Download PDFInfo
- Publication number
- KR20040059769A KR20040059769A KR1020020086271A KR20020086271A KR20040059769A KR 20040059769 A KR20040059769 A KR 20040059769A KR 1020020086271 A KR1020020086271 A KR 1020020086271A KR 20020086271 A KR20020086271 A KR 20020086271A KR 20040059769 A KR20040059769 A KR 20040059769A
- Authority
- KR
- South Korea
- Prior art keywords
- gate electrode
- gate
- trench
- region
- metal
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 30
- 229920005591 polysilicon Polymers 0.000 claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 239000004065 semiconductor Substances 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 18
- 229910052796 boron Inorganic materials 0.000 claims description 18
- 238000005468 ion implantation Methods 0.000 claims description 7
- 229910021332 silicide Inorganic materials 0.000 claims description 6
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000005465 channeling Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- DYCJFJRCWPVDHY-LSCFUAHRSA-N NBMPR Chemical compound O[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1N1C2=NC=NC(SCC=3C=CC(=CC=3)[N+]([O-])=O)=C2N=C1 DYCJFJRCWPVDHY-LSCFUAHRSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
Classifications
-
- 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
- H01L29/66613—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
-
- 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
- H01L29/7833—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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- 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)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (8)
- 게이트전극이 형성될 영역에 트렌치가 형성된 반도체기판;트렌치 단차를 따라 일정두께로 형성된 게이트절연막용 실리콘산화막;상기 실리콘산화막 상의 트렌치 내부에 매립된 게이트전극용 메탈막;상기 메탈 상부에 형성된 게이트전극용 폴리실리콘막; 및게이트전극이 형성될 영역을 사이에 두고 서로 이격되어 상기 반도체기판 표면 하부에 형성된 소오스영역 및 드레인 영역을 포함하는 모스트랜지스터.
- 제1항에 있어서,상기 메탈막은 상,하부에 접하는 층들과의 접착력 향상을 위하여 형성된 글루층을 더 포함하는 것을 특징으로 하는 모스트랜지스터.
- 제1항에 있어서,상기 메탈층은 기판내에 약 300Å의 두께로 형성되는 것을 특징으로 하는 모스트랜지스터.
- 제1항에 있어서,상기 메탈층은 텅스텐 또는 알루미늄을 포함하는 것을 특징으로 하는 모스트랜지스터.
- 제1항에 있어서,상기 폴리실리콘막 및 상기 소오스/드레인영역에는 붕소가 도핑된 것을 특징으로 하는 모스트랜지스터.
- 제1항 내지 제5항중 어느한 항에 있어서,상기 폴리실리콘막 및 상기 소오스/드레인영역 상에 형성된 실리사이드막을 더 포함하는 것을 특징으로 하는 모스트랜지스터.
- 게이트전극이 형성될 영역의 반도체기판에 트렌치를 형성하는 단계;트렌치 단차를 따라 일정두께로 게이트절연막용 실리콘산화막을 형성하는 단계;상기 실리콘산화막 상의 트렌치 내부에 게이트전극용 메탈막을 매립하는 단계;상기 메탈막 상부에 게이트전극용으로서 폴리실리콘막을 형성하는 단계; 및상기 반도체기판 표면 하부에 게이트전극이 형성될 영역을 사이에 두고 서로 이격된 소오스영역 및 드레인영역을 형성하는 단계을 포함하는 모스트랜지스터 제조 방법.
- 제7항에 있어서,상기 소오스영역 및 드레인영역을 붕소 이온주입에 의해 형성하는 것을 특징으로 하는 모스트랜지스터 제조 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020086271A KR100937102B1 (ko) | 2002-12-30 | 2002-12-30 | 모스트랜지스터 및 그 제조 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020086271A KR100937102B1 (ko) | 2002-12-30 | 2002-12-30 | 모스트랜지스터 및 그 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040059769A true KR20040059769A (ko) | 2004-07-06 |
KR100937102B1 KR100937102B1 (ko) | 2010-01-15 |
Family
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Family Applications (1)
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KR1020020086271A KR100937102B1 (ko) | 2002-12-30 | 2002-12-30 | 모스트랜지스터 및 그 제조 방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100937102B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100940161B1 (ko) * | 2007-12-27 | 2010-02-03 | 주식회사 동부하이텍 | 모스트랜지스터 및 그 제조방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62290178A (ja) * | 1986-06-09 | 1987-12-17 | Seiko Epson Corp | 半導体装置 |
KR19980036840A (ko) * | 1996-11-19 | 1998-08-05 | 김영환 | 반도체 장치의 전계효과트랜지스터 제조방법 |
JPH10173072A (ja) * | 1996-12-09 | 1998-06-26 | Sony Corp | 半導体装置の製造方法および半導体装置 |
KR20000045344A (ko) * | 1998-12-30 | 2000-07-15 | 김영환 | 반도체소자의 트랜지스터 형성방법 |
-
2002
- 2002-12-30 KR KR1020020086271A patent/KR100937102B1/ko active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100940161B1 (ko) * | 2007-12-27 | 2010-02-03 | 주식회사 동부하이텍 | 모스트랜지스터 및 그 제조방법 |
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Publication number | Publication date |
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KR100937102B1 (ko) | 2010-01-15 |
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