JP4989085B2 - 半導体装置及びその製造方法 - Google Patents
半導体装置及びその製造方法 Download PDFInfo
- Publication number
- JP4989085B2 JP4989085B2 JP2006048374A JP2006048374A JP4989085B2 JP 4989085 B2 JP4989085 B2 JP 4989085B2 JP 2006048374 A JP2006048374 A JP 2006048374A JP 2006048374 A JP2006048374 A JP 2006048374A JP 4989085 B2 JP4989085 B2 JP 4989085B2
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- JP
- Japan
- Prior art keywords
- layer
- insulating film
- drift layer
- drift
- semiconductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/0221—Manufacture or treatment of FETs having insulated gates [IGFET] having asymmetry in the channel direction, e.g. lateral high-voltage MISFETs having drain offset region or extended-drain MOSFETs [EDMOS]
-
- 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]
- H10D30/601—Insulated-gate field-effect transistors [IGFET] having lightly-doped drain or source extensions, e.g. LDD IGFETs or DDD IGFETs
- H10D30/603—Insulated-gate field-effect transistors [IGFET] having lightly-doped drain or source extensions, e.g. LDD IGFETs or DDD IGFETs having asymmetry in the channel direction, e.g. lateral high-voltage MISFETs having drain offset region or extended drain IGFETs [EDMOS]
-
- 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
-
- 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
- H10D62/156—Drain regions of DMOS transistors
- H10D62/157—Impurity concentrations or distributions
-
- 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
- H10D62/156—Drain regions of DMOS transistors
- H10D62/159—Shapes
-
- 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
- H10D64/111—Field plates
Landscapes
- Insulated Gate Type Field-Effect Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
Description
3 埋め込みシリコン層 4 LOCOS膜 5 ゲート電極
6 第1のドリフト層 7 ソース層 8 N+層
9 第2のドリフト層 10 低濃度ソース層 11 チャネル不純物層
12 ドレイン層 13 第1の層間絶縁膜 14 ドレイン電極
15 ソース電極 16 第2の層間絶縁膜
17 フィールドプレート 20 ダミー酸化膜
21,23,24,25,26,27 ホトレジスト層
21A ホトレジスト片 22 ゲート酸化膜
CH1,CH2 コンタクトホール
OF オフセット長 R 凹部 SL スリット
Claims (9)
- 第1導電型の半導体層上にフィールド絶縁膜を介して形成されたゲート電極と、第2導電型の第1のドリフト層と、前記ゲート電極を間に挟んで前記第1のドリフト層と対向して配置されたソース層と、前記第1のドリフト層より深く前記半導体層中に拡散され、前記第1のドリフト層の下方からフィールド絶縁膜の下方へ延びる第2導電型の第2のドリフト層とを備え、前記フィールド絶縁膜の端部の下方の前記第2のドリフト層の下部に凹部が形成されていることを特徴とする半導体装置。
- 前記ゲート電極の一部上から前記第1のドリフト層の一部上に延びるフィールドプレートを備えることを特徴とする請求項1に記載の半導体装置。
- 前記フィールドプレートは第2層金属層からなることを特徴とする請求項2に記載の半導体装置。
- 第1のドリフト層は前記フィールド絶縁膜の端から離れて配置されていることを特徴とする請求項1に記載の半導体装置。
- 前記フィールド絶縁膜の下部に接して前記半導体層より高濃度の第1導電型のチャネル不純物層が形成されていることを特徴とする請求項1、2、3、4のいずれかに記載の半導体装置。
- 前記第1のドリフト層及び前記第2のドリフト層と接触したドレイン層を備えることを特徴とする請求項1、2、3、4、5のいずれかに記載の半導体装置。
- 前記半導体層は、第2導電型の単結晶半導体基板上にエピタキシャル成長されたエピタキシャル半導体層であり、前記単結晶半導体基板と前記半導体層の界面に前記半導体層より高濃度の第1導電型の埋め込み半導体層が形成されていることを特徴とする請求項1、2、3、4、5、6のいずれかに記載の半導体装置。
- 第1導電型の半導体層上にスリットを有する第2導電型の第2のドリフト層を形成する工程と、前記半導体層の表面にその端部が前記スリットに入るように、選択酸化法によりフィールド絶縁膜を形成する工程と、前記フィールド絶縁膜上にゲート絶縁膜を形成する工程と、前記第2のドリフト層を熱拡散することにより、前記第2のドリフト層の下方に前記スリットに対応した凹部を形成する工程と、前記第2のドリフト層の表面に第1のドリフト層を形成する工程と、前記ゲート電極を間に挟んで前記第1のドリフト層と対向する第2導電型のソース層を形成する工程を備えることを特徴とする半導体装置の製造方法。
- 前記フィールド絶縁膜の下部に接して前記半導体層より高濃度の第1導電型のチャネル層を形成する工程を備えることを特徴とする請求項8に記載の半導体装置の製造方法。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006048374A JP4989085B2 (ja) | 2006-02-24 | 2006-02-24 | 半導体装置及びその製造方法 |
| TW096103838A TWI329362B (en) | 2006-02-24 | 2007-02-02 | Semiconductor device and manufacturing method thereof |
| CN2007100849579A CN101026192B (zh) | 2006-02-24 | 2007-02-17 | 半导体装置及其制造方法 |
| US11/708,685 US7705399B2 (en) | 2006-02-24 | 2007-02-21 | Semiconductor device with field insulation film formed therein |
| EP07003779A EP1826824B1 (en) | 2006-02-24 | 2007-02-23 | Semiconductor device and method of manufacturing the same |
| KR1020070018330A KR100813390B1 (ko) | 2006-02-24 | 2007-02-23 | 반도체 장치 및 그 제조 방법 |
| DE602007009885T DE602007009885D1 (de) | 2006-02-24 | 2007-02-23 | Halbleiteranordnung und Verfahren zu deren Herstellung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006048374A JP4989085B2 (ja) | 2006-02-24 | 2006-02-24 | 半導体装置及びその製造方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009105942A Division JP2009164651A (ja) | 2009-04-24 | 2009-04-24 | 半導体装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007227747A JP2007227747A (ja) | 2007-09-06 |
| JP4989085B2 true JP4989085B2 (ja) | 2012-08-01 |
Family
ID=38110444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006048374A Expired - Fee Related JP4989085B2 (ja) | 2006-02-24 | 2006-02-24 | 半導体装置及びその製造方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7705399B2 (ja) |
| EP (1) | EP1826824B1 (ja) |
| JP (1) | JP4989085B2 (ja) |
| KR (1) | KR100813390B1 (ja) |
| CN (1) | CN101026192B (ja) |
| DE (1) | DE602007009885D1 (ja) |
| TW (1) | TWI329362B (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5307973B2 (ja) * | 2006-02-24 | 2013-10-02 | 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 |
| JP4989085B2 (ja) | 2006-02-24 | 2012-08-01 | オンセミコンダクター・トレーディング・リミテッド | 半導体装置及びその製造方法 |
| KR100858924B1 (ko) * | 2006-11-13 | 2008-09-17 | 고려대학교 산학협력단 | 액화천연가스의 수증기 개질반응에 의한 수소가스 제조용담지 촉매, 그 제조방법 및 상기 담지 촉매를 이용한수소가스 제조방법 |
| JP2010010408A (ja) * | 2008-06-27 | 2010-01-14 | Sanyo Electric Co Ltd | 半導体装置及びその製造方法 |
| US11088031B2 (en) | 2014-11-19 | 2021-08-10 | Key Foundry Co., Ltd. | Semiconductor and method of fabricating the same |
| US10224407B2 (en) | 2017-02-28 | 2019-03-05 | Sandisk Technologies Llc | High voltage field effect transistor with laterally extended gate dielectric and method of making thereof |
| KR102291315B1 (ko) * | 2019-10-16 | 2021-08-18 | 주식회사 키 파운드리 | 반도체 소자 |
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| JP4989085B2 (ja) | 2006-02-24 | 2012-08-01 | オンセミコンダクター・トレーディング・リミテッド | 半導体装置及びその製造方法 |
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-
2006
- 2006-02-24 JP JP2006048374A patent/JP4989085B2/ja not_active Expired - Fee Related
-
2007
- 2007-02-02 TW TW096103838A patent/TWI329362B/zh not_active IP Right Cessation
- 2007-02-17 CN CN2007100849579A patent/CN101026192B/zh not_active Expired - Fee Related
- 2007-02-21 US US11/708,685 patent/US7705399B2/en active Active
- 2007-02-23 KR KR1020070018330A patent/KR100813390B1/ko not_active Expired - Fee Related
- 2007-02-23 EP EP07003779A patent/EP1826824B1/en not_active Not-in-force
- 2007-02-23 DE DE602007009885T patent/DE602007009885D1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP1826824A2 (en) | 2007-08-29 |
| DE602007009885D1 (de) | 2010-12-02 |
| US20070200171A1 (en) | 2007-08-30 |
| JP2007227747A (ja) | 2007-09-06 |
| TW200805653A (en) | 2008-01-16 |
| US7705399B2 (en) | 2010-04-27 |
| EP1826824B1 (en) | 2010-10-20 |
| CN101026192A (zh) | 2007-08-29 |
| EP1826824A3 (en) | 2008-11-19 |
| TWI329362B (en) | 2010-08-21 |
| CN101026192B (zh) | 2010-06-16 |
| KR100813390B1 (ko) | 2008-03-12 |
| KR20070088376A (ko) | 2007-08-29 |
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