KR100871550B1 - 반도체 소자 및 그 제조방법 - Google Patents
반도체 소자 및 그 제조방법 Download PDFInfo
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- KR100871550B1 KR100871550B1 KR1020060131435A KR20060131435A KR100871550B1 KR 100871550 B1 KR100871550 B1 KR 100871550B1 KR 1020060131435 A KR1020060131435 A KR 1020060131435A KR 20060131435 A KR20060131435 A KR 20060131435A KR 100871550 B1 KR100871550 B1 KR 100871550B1
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- silicon substrate
- gate electrode
- isolation layer
- device isolation
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000004065 semiconductor Substances 0.000 title abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 55
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 53
- 239000010703 silicon Substances 0.000 claims abstract description 53
- 238000002955 isolation Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims description 19
- 239000012535 impurity Substances 0.000 claims description 14
- 150000002500 ions Chemical class 0.000 claims description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 5
- 238000005530 etching Methods 0.000 description 4
- 210000000746 body region Anatomy 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/028—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs
- H10D30/0281—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of lateral DMOS [LDMOS] FETs
- H10D30/0289—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of lateral DMOS [LDMOS] FETs using recessing of the gate electrodes, e.g. to form trench gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/028—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs
- H10D30/0281—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of lateral DMOS [LDMOS] FETs
- H10D30/0285—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of lateral DMOS [LDMOS] FETs using formation of insulating sidewall spacers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/028—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs
- H10D30/0281—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of lateral DMOS [LDMOS] FETs
- H10D30/0287—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of lateral DMOS [LDMOS] FETs using recessing of the source electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/64—Double-diffused metal-oxide semiconductor [DMOS] FETs
- H10D30/65—Lateral DMOS [LDMOS] FETs
- H10D30/658—Lateral DMOS [LDMOS] FETs having trench gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D44/00—Charge transfer devices
- H10D44/40—Charge-coupled devices [CCD]
- H10D44/45—Charge-coupled devices [CCD] having field effect produced by insulated gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/13—Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
- H10D62/149—Source or drain regions of field-effect devices
- H10D62/151—Source or drain regions of field-effect devices of IGFETs
- H10D62/152—Source regions of DMOS transistors
- H10D62/153—Impurity concentrations or distributions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/512—Disposition of the gate electrodes, e.g. buried gates
- H10D64/513—Disposition of the gate electrodes, e.g. buried gates within recesses in the substrate, e.g. trench gates, groove gates or buried gates
-
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28026—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor
- H01L21/28123—Lithography-related aspects, e.g. sub-lithography lengths; Isolation-related aspects, e.g. to solve problems arising at the crossing with the side of the device isolation; Planarisation aspects
- H01L21/2815—Lithography-related aspects, e.g. sub-lithography lengths; Isolation-related aspects, e.g. to solve problems arising at the crossing with the side of the device isolation; Planarisation aspects part or whole of the electrode is a sidewall spacer or made by a similar technique, e.g. transformation under mask, plating
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/113—Isolations within a component, i.e. internal isolations
- H10D62/115—Dielectric isolations, e.g. air gaps
- H10D62/116—Dielectric isolations, e.g. air gaps adjoining the input or output regions of field-effect devices, e.g. adjoining source or drain regions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/517—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the conducting layers
- H10D64/518—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the conducting layers characterised by their lengths or sectional shapes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (6)
- 실리콘 기판에 형성되는 소자 격리막;상기 실리콘 기판의 표면이 소정부분 노출되도록 상기 소자 격리막이 선택적으로 제거되어 형성된 오픈부;상기 오픈부에 의해 노출된 실리콘 기판 표면내에 형성되는 바디층;상기 오픈부 양측의 소자 격리막 측면에 게이트 절연막을 개재하여 형성되며, 상기 소자 격리막보다 낮은 높이로 형성되는 게이트 전극; 및상기 게이트 전극의 일측의 바디층 및 실리콘 기판의 표면내에 형성되는 소오스 영역 및 드레인 영역을 포함하는 것을 특징으로 하는 반도체 소자.
- 제 1 항에 있어서,상기 소자 격리막은 상기 바디층의 상면보다 높은 위치에 형성되는 것을 특징으로 하는 반도체 소자.
- 실리콘 기판에 STI 공정을 이용하여 소자 격리막을 형성하는 단계;상기 소자 격리막의 일부를 선택적으로 제거하여 실리콘 기판을 오픈하는 오픈부를 형성하는 단계;상기 오픈부가 형성된 실리콘 기판 표면내에 불순물 이온을 주입하여 바디층을 형성하는 단계;상기 오픈부 양측의 소자 격리막 측면에 게이트 절연막을 개재하여 게이트 전극을 형성하는 단계; 및상기 게이트 전극의 일측 및 실리콘 기판의 표면내에 소오스 영역과 드레인 영역을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 3 항에 있어서,상기 게이트 전극을 형성한 후, 상기 오픈부가 형성된 실리콘 기판의 표면내에 LDD 영역을 형성하는 단계를 더 포함하여 형성함을 특징으로 하는 반도체 소자의 제조방법.
- 제 4항에 있어서, 상기 LDD영역을 형성하는 단계에서,상기 게이트 전극을 마스크로 상기 실리콘 기판에 도전형 불순물을 주입하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 3 항에 있어서,상기 게이트 전극은 소자 격리막의 상부표면보다 낮은 높이로 형성되는 것을 특징으로 하는 반도체 소자의 제조방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060131435A KR100871550B1 (ko) | 2006-12-20 | 2006-12-20 | 반도체 소자 및 그 제조방법 |
US11/944,586 US7875929B2 (en) | 2006-12-20 | 2007-11-23 | Semiconductor device and method for manufacturing the same |
CN2007103018399A CN101207125B (zh) | 2006-12-20 | 2007-12-18 | 半导体器件及其制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060131435A KR100871550B1 (ko) | 2006-12-20 | 2006-12-20 | 반도체 소자 및 그 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080057766A KR20080057766A (ko) | 2008-06-25 |
KR100871550B1 true KR100871550B1 (ko) | 2008-12-01 |
Family
ID=39541592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020060131435A Expired - Fee Related KR100871550B1 (ko) | 2006-12-20 | 2006-12-20 | 반도체 소자 및 그 제조방법 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7875929B2 (ko) |
KR (1) | KR100871550B1 (ko) |
CN (1) | CN101207125B (ko) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100947941B1 (ko) * | 2007-12-27 | 2010-03-15 | 주식회사 동부하이텍 | 반도체 소자 및 그 제조방법 |
KR101530579B1 (ko) * | 2008-12-11 | 2015-06-29 | 주식회사 동부하이텍 | 반도체 소자 및 이의 제조 방법 |
KR101531883B1 (ko) * | 2008-12-31 | 2015-06-26 | 주식회사 동부하이텍 | 수평형 디모스 트랜지스터 |
JP5525736B2 (ja) * | 2009-02-18 | 2014-06-18 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | 半導体装置及びその製造方法 |
JP4820899B2 (ja) * | 2009-10-23 | 2011-11-24 | 株式会社東芝 | 半導体装置 |
JP5878331B2 (ja) * | 2011-10-18 | 2016-03-08 | トヨタ自動車株式会社 | 半導体装置及びその製造方法 |
JP6339404B2 (ja) * | 2014-04-10 | 2018-06-06 | 旭化成エレクトロニクス株式会社 | 半導体装置の製造方法及び半導体装置 |
CN109888015A (zh) | 2017-12-06 | 2019-06-14 | 无锡华润上华科技有限公司 | Ldmos器件及其制备方法 |
US11069777B1 (en) * | 2020-06-09 | 2021-07-20 | Monolithic Power Systems, Inc. | Manufacturing method of self-aligned DMOS body pickup |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0121107B1 (ko) * | 1994-02-15 | 1997-11-15 | 김주용 | 전력용 반도체 장치 및 그 제조방법 |
KR20060053441A (ko) * | 2004-11-15 | 2006-05-22 | 매그나칩 반도체 유한회사 | 디모스 트랜지스터 제조방법 |
KR20060094464A (ko) * | 2005-02-24 | 2006-08-29 | 산요덴키가부시키가이샤 | 반도체 장치 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100253075B1 (ko) * | 1997-05-15 | 2000-04-15 | 윤종용 | 고내압 반도체 장치 및 그의 제조 방법 |
US6316807B1 (en) * | 1997-12-05 | 2001-11-13 | Naoto Fujishima | Low on-resistance trench lateral MISFET with better switching characteristics and method for manufacturing same |
US6372579B1 (en) * | 1999-03-04 | 2002-04-16 | United Microelectronics Corp. | Producing laterally diffused metal-oxide semiconductor |
KR100948139B1 (ko) * | 2003-04-09 | 2010-03-18 | 페어차일드코리아반도체 주식회사 | 높은 브레이크다운 전압 및 낮은 온 저항을 위한 다중전류 이동 경로를 갖는 수평형 이중-확산 모스 트랜지스터 |
US6900101B2 (en) * | 2003-06-13 | 2005-05-31 | Texas Instruments Incorporated | LDMOS transistors and methods for making the same |
KR100589489B1 (ko) * | 2003-12-31 | 2006-06-14 | 동부일렉트로닉스 주식회사 | 횡형 디모스의 제조방법 |
US7791161B2 (en) * | 2005-08-25 | 2010-09-07 | Freescale Semiconductor, Inc. | Semiconductor devices employing poly-filled trenches |
-
2006
- 2006-12-20 KR KR1020060131435A patent/KR100871550B1/ko not_active Expired - Fee Related
-
2007
- 2007-11-23 US US11/944,586 patent/US7875929B2/en not_active Expired - Fee Related
- 2007-12-18 CN CN2007103018399A patent/CN101207125B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0121107B1 (ko) * | 1994-02-15 | 1997-11-15 | 김주용 | 전력용 반도체 장치 및 그 제조방법 |
KR20060053441A (ko) * | 2004-11-15 | 2006-05-22 | 매그나칩 반도체 유한회사 | 디모스 트랜지스터 제조방법 |
KR20060094464A (ko) * | 2005-02-24 | 2006-08-29 | 산요덴키가부시키가이샤 | 반도체 장치 |
Also Published As
Publication number | Publication date |
---|---|
CN101207125B (zh) | 2010-06-02 |
KR20080057766A (ko) | 2008-06-25 |
US20080150016A1 (en) | 2008-06-26 |
US7875929B2 (en) | 2011-01-25 |
CN101207125A (zh) | 2008-06-25 |
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