KR101068139B1 - Ldmosfet 제조방법 - Google Patents
Ldmosfet 제조방법 Download PDFInfo
- Publication number
- KR101068139B1 KR101068139B1 KR1020040030437A KR20040030437A KR101068139B1 KR 101068139 B1 KR101068139 B1 KR 101068139B1 KR 1020040030437 A KR1020040030437 A KR 1020040030437A KR 20040030437 A KR20040030437 A KR 20040030437A KR 101068139 B1 KR101068139 B1 KR 101068139B1
- Authority
- KR
- South Korea
- Prior art keywords
- semiconductor substrate
- forming
- ldmosfet
- oxide film
- gate electrode
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000004065 semiconductor Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title abstract description 17
- 230000005669 field effect Effects 0.000 title description 2
- 229910044991 metal oxide Inorganic materials 0.000 title description 2
- 150000004706 metal oxides Chemical class 0.000 title description 2
- 239000000758 substrate Substances 0.000 claims abstract description 44
- 238000002955 isolation Methods 0.000 claims abstract description 15
- 125000006850 spacer group Chemical group 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 238000009792 diffusion process Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000005530 etching Methods 0.000 claims abstract description 3
- 230000005684 electric field Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
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
- H01L29/66674—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/66681—Lateral DMOS transistors, i.e. LDMOS transistors
- H01L29/66689—Lateral DMOS transistors, i.e. LDMOS transistors with a step of forming an insulating sidewall spacer
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
- H01L21/76229—Concurrent filling of a plurality of trenches having a different trench shape or dimension, e.g. rectangular and V-shaped trenches, wide and narrow trenches, shallow and deep trenches
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (1)
- 반도체 기판의 소정 영역을 선택적으로 식각하여 이후의 공정에서 형성될 소자분리막 보다 얕은 깊이의 홈을 형성하는 단계;상기 홈을 산화막으로 매립시켜 산화막 재질의 플레이트를 형성하는 단계;상기 플레이트가 형성된 결과물의 반도체 기판에 고전압 웰을 형성하는 단계;상기 반도체 기판의 적소에 트렌치형의 소자분리막을 형성하는 단계;상기 반도체 기판에 저농도 불순물을 선택적으로 이온주입한 후, 열확산 공정을 수행하여 각각의 드리프트 영역을 형성하는 단계;상기 드리프트 영역이 형성된 결과물의 반도체 기판 상에 게이트 절연막을 개재시켜 게이트 전극을 형성하는 단계;상기 게이트 전극의 양측벽에 스페이서를 형성하는 단계; 및상기 스페이서 양측의 반도체 기판에 고농도 불순물을 선택적으로 이온주입하여 소오스/드레인 영역을 형성하는 단계를 포함하는 것을 특징으로 하는 LDMOSFET 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040030437A KR101068139B1 (ko) | 2004-04-30 | 2004-04-30 | Ldmosfet 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040030437A KR101068139B1 (ko) | 2004-04-30 | 2004-04-30 | Ldmosfet 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050104965A KR20050104965A (ko) | 2005-11-03 |
KR101068139B1 true KR101068139B1 (ko) | 2011-09-27 |
Family
ID=37282413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040030437A KR101068139B1 (ko) | 2004-04-30 | 2004-04-30 | Ldmosfet 제조방법 |
Country Status (1)
Country | Link |
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KR (1) | KR101068139B1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100779401B1 (ko) * | 2006-08-29 | 2007-11-23 | 동부일렉트로닉스 주식회사 | 반도체 소자 및 그 제조 방법 |
KR100778861B1 (ko) * | 2006-12-12 | 2007-11-22 | 동부일렉트로닉스 주식회사 | Ldmos 반도체 소자의 제조 방법 |
KR100817084B1 (ko) * | 2007-02-02 | 2008-03-26 | 삼성전자주식회사 | 고전압 트랜지스터 및 그 제조방법 |
KR100848245B1 (ko) * | 2007-06-25 | 2008-07-24 | 주식회사 동부하이텍 | 반도체 소자 및 그 제조방법 |
KR100899764B1 (ko) * | 2007-06-26 | 2009-05-27 | 주식회사 동부하이텍 | 반도체 소자 및 그 제조방법 |
KR100940625B1 (ko) * | 2007-08-31 | 2010-02-05 | 주식회사 동부하이텍 | 엘씨디 구동 칩 및 그 제조방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002334990A (ja) | 2001-03-06 | 2002-11-22 | Fuji Electric Co Ltd | 半導体装置 |
JP2003037267A (ja) | 2001-05-18 | 2003-02-07 | Fuji Electric Co Ltd | 半導体装置の製造方法 |
JP2003060204A (ja) | 2001-06-29 | 2003-02-28 | Atmel Germany Gmbh | Dmosトランジスタの製造方法 |
JP2004508697A (ja) | 2000-06-09 | 2004-03-18 | モトローラ・インコーポレイテッド | 半導体デバイスおよび半導体デバイスを形成する方法 |
-
2004
- 2004-04-30 KR KR1020040030437A patent/KR101068139B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004508697A (ja) | 2000-06-09 | 2004-03-18 | モトローラ・インコーポレイテッド | 半導体デバイスおよび半導体デバイスを形成する方法 |
JP2002334990A (ja) | 2001-03-06 | 2002-11-22 | Fuji Electric Co Ltd | 半導体装置 |
JP2003037267A (ja) | 2001-05-18 | 2003-02-07 | Fuji Electric Co Ltd | 半導体装置の製造方法 |
JP2003060204A (ja) | 2001-06-29 | 2003-02-28 | Atmel Germany Gmbh | Dmosトランジスタの製造方法 |
Also Published As
Publication number | Publication date |
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KR20050104965A (ko) | 2005-11-03 |
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