KR100500472B1 - 리세스 게이트 트랜지스터 구조 및 형성방법 - Google Patents
리세스 게이트 트랜지스터 구조 및 형성방법 Download PDFInfo
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- KR100500472B1 KR100500472B1 KR10-2003-0070924A KR20030070924A KR100500472B1 KR 100500472 B1 KR100500472 B1 KR 100500472B1 KR 20030070924 A KR20030070924 A KR 20030070924A KR 100500472 B1 KR100500472 B1 KR 100500472B1
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 239000004065 semiconductor Substances 0.000 claims abstract description 19
- 238000002955 isolation Methods 0.000 claims abstract description 17
- 238000005530 etching Methods 0.000 claims description 9
- 229920002120 photoresistant polymer Polymers 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 5
- 229920005591 polysilicon Polymers 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 229910052814 silicon oxide Inorganic materials 0.000 claims 1
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 claims 1
- 229910021342 tungsten silicide Inorganic materials 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 23
- 150000002500 ions Chemical class 0.000 description 11
- 238000005229 chemical vapour deposition Methods 0.000 description 9
- 238000005468 ion implantation Methods 0.000 description 5
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000005360 phosphosilicate glass Substances 0.000 description 2
- 239000005368 silicate glass Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910015900 BF3 Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 241001061036 Otho Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- GDFCWFBWQUEQIJ-UHFFFAOYSA-N [B].[P] Chemical compound [B].[P] GDFCWFBWQUEQIJ-UHFFFAOYSA-N 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 238000000231 atomic layer deposition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920003209 poly(hydridosilsesquioxane) Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- 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 potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table 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 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41758—Source or drain electrodes for field effect devices for lateral devices with structured layout for source or drain region, i.e. the source or drain region having cellular, interdigitated or ring structure or being curved or angular
-
- 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
- H01L29/40—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
- H01L29/42372—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out
- H01L29/4238—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out characterised by the surface lay-out
-
- 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
- H01L29/66659—Lateral single gate silicon transistors with asymmetry in the channel direction, e.g. lateral high-voltage MISFETs with drain offset region, extended drain MISFETs
-
- 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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (15)
- 기판의 소정 영역에 활성영역 및 비활성영역을 정의하는 소자분리막을 형성하는 단계;상기 결과물이 형성된 기판의 전면에 제1 절연막 및 제2 절연막을 순차적으로 형성하는 단계;상기 활성영역의 일부에 리세스를 형성하는 단계;상기 리세스 내에 게이트 절연막을 형성한 후, 상기 리세스의 내부에 제1 게이트 도전막을 형성하는 단계;상기 제2 절연막 및 제1 게이트 도전막의 상부에 제2 게이트 도전막을 형성하는 단계; 및상기 제1 게이트 도전막을 사이에 두고 상기 활성영역에 서로 대향적으로 이격 형성된 소오스 및 드레인 영역을 형성하는 단계를 포함함을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,상기 제1 절연막은 실리콘 산화막 재질로 형성됨을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,상기 제2 절연막은 실리콘 질화막 재질로 형성됨을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,상기 제2 절연막의 두께는 800Å 내지 1200Å 두께로 형성됨을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,상기 활성영역의 일부에 형성된 리세스는 상기 제2 절연막 상에 상기 활성영역의 일부를 노출시키는 포토레지스트 패턴을 형성한 후, 상기 포토레지스트 패턴을 식각마스크로 이용하여 상기 제2 절연막, 제1 절연막 및 기판을 순차적으로 식각함에 의해 형성됨을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,상기 활성영역의 일부에 형성된 리세스는 1200Å 내지 1800Å의 깊이와 700Å 내지 900Å의 길이로 형성됨을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,상기 게이트 절연막은 산화막 재질로서 40Å 내지 60Å의 두께로 형성됨을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,제1 게이트 도전막은 폴리실리콘 재질로 형성됨을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,상기 제1 게이트 도전막을 형성한 후에, 상기 제1 게이트 도전막의 상부 표면과 상기 제2 절연막의 상부 표면이 동일한 선상에 존재하도록 상기 제1 게이트 도전막을 평탄화하는 단계를 더 포함함을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 9항에 있어서,상기 평탄화는 CMP 또는 에치백 방법으로 수행됨을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,제2 게이트 도전막은 텅스텐(W) 또는 텅스텐 실리사이드(WSix) 재질로 형성됨을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,상기 제2 게이트 도전막은 상기 제2 절연막 및 제1 게이트 도전막의 상부에 일정 간격으로 이격되어 나란히 형성됨을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,상기 제2 게이트 도전막을 형성한 후, 상기 제2 게이트 도전막의 상부에 캡핑막을 형성하는 단계와; 상기 제2 게이트 도전막 및 캡핑막의 측벽에 게이트 스페이서를 형성하는 단계를 더 포함함을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 제 1항에 있어서,상기 소오스 및 드레인 영역은 저농도 소오스 및 드레인 영역과 고농도 소오스 및 드레인 영역을 갖는 LDD 구조로 이루어짐을 특징으로 하는 리세스 게이트 트랜지스터의 형성방법.
- 소자분리막에 의하여 활성영역 및 비활성영역이 정의된 반도체 기판에 형성된 리세스 게이트 트랜지스터의 구조에 있어서:상기 활성영역 및 비활성영역 상에 일정 간격으로 이격되어 나란히 형성된 제1 전극영역;상기 활성영역 상에 형성된 제1 전극영역의 하부에서 상기 반도체 기판의 일정 깊이까지 연장되고, 게이트 절연막으로 둘러싸인 구조를 갖는 제2 전극영역;상기 제1 전극영역과 활성영역 사이에 형성된 절연막;상기 제2 전극영역을 사이에 두고 상기 활성영역에 서로 대향적으로 형성된 소오스 및 드레인 영역으로 이루어짐을 특징으로 하는 리세스 게이트 트랜지스터 구조.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR10-2003-0070924A KR100500472B1 (ko) | 2003-10-13 | 2003-10-13 | 리세스 게이트 트랜지스터 구조 및 형성방법 |
US10/963,928 US7153745B2 (en) | 2003-10-13 | 2004-10-12 | Recessed gate transistor structure and method of forming the same |
US11/560,756 US7777258B2 (en) | 2003-10-13 | 2006-11-16 | Recessed gate transistor structure and method of forming the same |
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KR10-2003-0070924A KR100500472B1 (ko) | 2003-10-13 | 2003-10-13 | 리세스 게이트 트랜지스터 구조 및 형성방법 |
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KR20050035354A KR20050035354A (ko) | 2005-04-18 |
KR100500472B1 true KR100500472B1 (ko) | 2005-07-12 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100696764B1 (ko) * | 2006-03-23 | 2007-03-19 | 주식회사 하이닉스반도체 | 반도체 소자 및 그의 제조 방법 |
KR100744654B1 (ko) | 2006-02-23 | 2007-08-01 | 주식회사 하이닉스반도체 | 리세스 게이트를 갖는 반도체 소자의 제조방법 |
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KR101128904B1 (ko) | 2005-07-28 | 2012-03-27 | 주식회사 하이닉스반도체 | 반도체 소자의 트랜지스터 제조 방법 |
KR100744654B1 (ko) | 2006-02-23 | 2007-08-01 | 주식회사 하이닉스반도체 | 리세스 게이트를 갖는 반도체 소자의 제조방법 |
KR100696764B1 (ko) * | 2006-03-23 | 2007-03-19 | 주식회사 하이닉스반도체 | 반도체 소자 및 그의 제조 방법 |
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US20050079661A1 (en) | 2005-04-14 |
US7777258B2 (en) | 2010-08-17 |
US7153745B2 (en) | 2006-12-26 |
KR20050035354A (ko) | 2005-04-18 |
US20070069268A1 (en) | 2007-03-29 |
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