KR101068137B1 - 고전압 트랜지스터 제조방법 - Google Patents
고전압 트랜지스터 제조방법 Download PDFInfo
- Publication number
- KR101068137B1 KR101068137B1 KR1020040026545A KR20040026545A KR101068137B1 KR 101068137 B1 KR101068137 B1 KR 101068137B1 KR 1020040026545 A KR1020040026545 A KR 1020040026545A KR 20040026545 A KR20040026545 A KR 20040026545A KR 101068137 B1 KR101068137 B1 KR 101068137B1
- Authority
- KR
- South Korea
- Prior art keywords
- forming
- trench
- high voltage
- semiconductor substrate
- substrate
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 32
- 239000004065 semiconductor Substances 0.000 claims abstract description 20
- 238000005530 etching Methods 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 9
- 229920005591 polysilicon Polymers 0.000 claims abstract description 9
- 238000005468 ion implantation Methods 0.000 claims abstract description 5
- 238000004904 shortening Methods 0.000 abstract 1
- 230000003071 parasitic effect Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
Images
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
- H01L29/68—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
-
- 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
- H01L29/0603—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 characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
- H01L29/0642—Isolation within the component, i.e. internal isolation
- H01L29/0649—Dielectric regions, e.g. SiO2 regions, air gaps
- H01L29/0653—Dielectric regions, e.g. SiO2 regions, air gaps adjoining the input or output region of a field-effect device, e.g. the source or drain region
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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
- H01L29/66575—Lateral single gate silicon transistors where the source and drain or source and drain extensions are self-aligned to the sides of the gate
- H01L29/6659—Lateral single gate silicon transistors where the source and drain or source and drain extensions are self-aligned to the sides of the gate with both lightly doped source and drain extensions and source and drain self-aligned to the sides of the gate, e.g. lightly doped drain [LDD] MOSFET, double diffused drain [DDD] MOSFET
Abstract
Description
Claims (2)
- 반도체 기판의 소정부분을 선택적으로 식각하여 트렌치를 형성하는 단계;상기 반도체 기판에 고전압 웰을 형성하는 단계;상기 고전압 웰 내에 선택적인 저농도 불순물 도핑으로 드리프트 영역을 형성하는 단계;상기 트렌치를 포함한 기판 전면에 게이트 산화막을 형성하는 단계;상기 게이트 산화막이 형성된 기판 결과물에 대해 문턱전압 이온주입 공정을 실시하는 단계;상기 게이트 산화막 상에 폴리실리콘막을 형성하여 상기 트렌치를 매립시키는 단계;상기 반도체 기판이 노출될 때까지 상기 폴리실리콘막 및 게이트 산화막이 형성된 결과물을 에치백 공정을 이용하여 평탄화시켜 상기 트렌치 내에 게이트 전극을 형성하는 단계; 및상기 게이트 전극 양측의 기판에 선택적인 고농도 불순물 도핑으로 소오스/드레인 영역을 형성하는 단계를 포함하는 것을 특징으로 하는 고전압 트랜지스터 제조방법.
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040026545A KR101068137B1 (ko) | 2004-04-19 | 2004-04-19 | 고전압 트랜지스터 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040026545A KR101068137B1 (ko) | 2004-04-19 | 2004-04-19 | 고전압 트랜지스터 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050101615A KR20050101615A (ko) | 2005-10-25 |
KR101068137B1 true KR101068137B1 (ko) | 2011-09-27 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040026545A KR101068137B1 (ko) | 2004-04-19 | 2004-04-19 | 고전압 트랜지스터 제조방법 |
Country Status (1)
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KR (1) | KR101068137B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101301583B1 (ko) * | 2011-12-21 | 2013-08-29 | 주식회사 에이앤디코퍼레이션 | 전력용 반도체소자의 제조방법 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100790742B1 (ko) * | 2006-12-20 | 2008-01-02 | 동부일렉트로닉스 주식회사 | 트랜지스터 및 그 제조방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990057278A (ko) * | 1997-12-29 | 1999-07-15 | 김영환 | 트렌치 트랜지스터의 ldd 형성방법 |
KR20010009679A (ko) * | 1999-07-13 | 2001-02-05 | 김영환 | 반도체소자의 제조방법 |
KR20030056910A (ko) * | 2001-12-28 | 2003-07-04 | 주식회사 하이닉스반도체 | 반도체 소자의 살리사이드 형성 방법 |
-
2004
- 2004-04-19 KR KR1020040026545A patent/KR101068137B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990057278A (ko) * | 1997-12-29 | 1999-07-15 | 김영환 | 트렌치 트랜지스터의 ldd 형성방법 |
KR20010009679A (ko) * | 1999-07-13 | 2001-02-05 | 김영환 | 반도체소자의 제조방법 |
KR20030056910A (ko) * | 2001-12-28 | 2003-07-04 | 주식회사 하이닉스반도체 | 반도체 소자의 살리사이드 형성 방법 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101301583B1 (ko) * | 2011-12-21 | 2013-08-29 | 주식회사 에이앤디코퍼레이션 | 전력용 반도체소자의 제조방법 |
Also Published As
Publication number | Publication date |
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KR20050101615A (ko) | 2005-10-25 |
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