JP4234586B2 - 深い注入接合を有する出力mosfet - Google Patents
深い注入接合を有する出力mosfet Download PDFInfo
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- JP4234586B2 JP4234586B2 JP2003511283A JP2003511283A JP4234586B2 JP 4234586 B2 JP4234586 B2 JP 4234586B2 JP 2003511283 A JP2003511283 A JP 2003511283A JP 2003511283 A JP2003511283 A JP 2003511283A JP 4234586 B2 JP4234586 B2 JP 4234586B2
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- 238000002347 injection Methods 0.000 title description 7
- 239000007924 injection Substances 0.000 title description 7
- 239000004065 semiconductor Substances 0.000 claims description 27
- 125000006850 spacer group Chemical group 0.000 claims description 26
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 21
- 229920005591 polysilicon Polymers 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 14
- 238000002513 implantation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 20
- 239000002019 doping agent Substances 0.000 description 18
- 230000015556 catabolic process Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 210000000746 body region Anatomy 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 229920002120 photoresistant polymer Polymers 0.000 description 7
- 150000004767 nitrides Chemical class 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 239000007943 implant Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 230000000873 masking effect Effects 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 230000036039 immunity Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 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
- 239000000126 substance Substances 0.000 description 1
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Description
31 エピタキシャル層
32 ベース領域
32′ 反転チャネル領域
33 ソース領域
35 共通導電領域
39 コンタクト層
50 絶縁スペーサ
51 ゲート電極
92 深い注入接合
Claims (8)
- 第1導電型の基板と;
前記基板の表面に形成された第1導電型のエピタキシャル層と;
前記エピタキシャル層に第1所定深さまで形成された、第2導電型を有する互いに隔離された複数の僅かにドープされたベース領域と;
前記ベース領域間に配置された共通導電領域と;
前記僅かにドープされたベース領域内に形成された、第1導電型を有する複数の高濃度にドープされたソース領域と;
前記ソース領域と前記共通導電領域との間に配置された反転チャネル領域と;
前記第1所定深さと第2所定深さとの間に延在する前記ベース領域の下の前記エピタキシャル層内に形成された第2導電型の深い注入接合と;
絶縁層によって前記反転チャネルから絶縁された、前記反転チャネルの上方に形成されたゲート電極と;
を備え、
前記共通導電領域の少なくとも一部の上方に配置され、前記エピタキシャル層上に配置された酸化物を備えた、厚い絶縁スペーサをさらに備え、
各々の前記厚い絶縁スペーサは、分離された各々の前記ゲート電極の間に配置され、
絶縁上部層が、各々の前記ゲート電極の頂上に形成され、
前記厚い絶縁スペーサの厚さは、前記ゲート電極の厚さ及び前記絶縁上部層の厚さとそれぞれ独立していることを特徴とする出力半導体素子。 - 請求項1記載の出力半導体素子において、
前記ソース領域に電気的に接続されたコンタクト層をさらに備えることを特徴とする出力半導体素子。 - 請求項2記載の出力半導体素子において、
前記コンタクト層は、前記ソース領域及び前記ベース領域に電気的に接続されていることを特徴とする出力半導体素子。 - 請求項1記載の出力半導体素子において、
前記ゲート電極は、ポリシリコンから構成されていることを特徴とする出力半導体素子。 - 請求項1記載の出力半導体素子において、
分離された各々の前記ゲート電極の側壁に配置された絶縁側壁をさらに備えることを特徴とする出力半導体素子。 - 第1導電型の基板と;
前記基板の表面に形成された第1導電型のエピタキシャル層と;
前記エピタキシャル層に第1所定深さまで形成された、第2導電型を有する互いに隔離された複数の僅かにドープされたベース領域と;
前記ベース領域間に配置された共通導電領域と;
前記僅かにドープされたベース領域内に形成された、第1導電型を有する複数の高濃度にドープされたソース領域と;
前記ソース領域と前記共通導電領域との間に配置された反転チャネル領域と;
前記第1所定深さと第2所定深さとの間に延在する前記ベース領域の下の前記エピタキシャル層内に形成された第2導電型の深い注入接合と;
絶縁層によって前記反転チャネルから絶縁された、前記反転チャネルの上方に形成されたゲート電極と;
を備え、
分離された前記ゲート電極の間に各々形成された絶縁スペーサをさらに備え
各々の前記ゲート電極の側壁に配置されたポリシリサイド壁をさらに備え、
前記絶縁スペーサは、前記共通導電領域の少なくとも一部の上方に配置され、前記エピタキシャル層上に配置された酸化物を備え、
絶縁上部層が、各々の前記ゲート電極の頂上に形成され、
前記絶縁スペーサの厚さが前記ゲート電極の厚さ及び前記絶縁上部層の厚さとそれぞれ独立していることを特徴とする出力半導体素子。 - 請求項1記載の出力半導体素子において、
前記第2所定深さは、前記第1所定深さの少なくとも2倍の深さであることを特徴とする出力半導体素子。 - 請求項1記載の出力半導体素子において、
前記第2所定深さは、ほぼ前記エピタキシャル層の厚さであることを特徴とする出力半導体素子。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30305901P | 2001-07-05 | 2001-07-05 | |
US10/187,580 US6639276B2 (en) | 2001-07-05 | 2002-07-01 | Power MOSFET with ultra-deep base and reduced on resistance |
PCT/US2002/021127 WO2003005414A2 (en) | 2001-07-05 | 2002-07-02 | Power mosfet with deep implanted junctions |
Publications (2)
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JP2004538626A JP2004538626A (ja) | 2004-12-24 |
JP4234586B2 true JP4234586B2 (ja) | 2009-03-04 |
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JP2003511283A Expired - Lifetime JP4234586B2 (ja) | 2001-07-05 | 2002-07-02 | 深い注入接合を有する出力mosfet |
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US (2) | US6639276B2 (ja) |
EP (1) | EP1417721A4 (ja) |
JP (1) | JP4234586B2 (ja) |
KR (1) | KR100566599B1 (ja) |
CN (1) | CN1333468C (ja) |
AU (1) | AU2002318191A1 (ja) |
WO (1) | WO2003005414A2 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1296378A1 (en) * | 2001-09-21 | 2003-03-26 | STMicroelectronics S.r.l. | MOS semiconductor device and manufacturing process thereof |
DE10240861B4 (de) * | 2002-09-04 | 2007-08-30 | Infineon Technologies Ag | Mittels Feldeffekt steuerbares Halbleiterbauelement und Verfahren zu dessen Herstellung |
US6969657B2 (en) * | 2003-03-25 | 2005-11-29 | International Rectifier Corporation | Superjunction device and method of manufacture therefor |
JP2004311673A (ja) * | 2003-04-07 | 2004-11-04 | Denso Corp | 半導体装置の製造方法 |
SE0303106D0 (sv) * | 2003-11-21 | 2003-11-21 | Infineon Technologies Ag | Ldmos transistor device, integrated circuit, and fabrication method thereof |
EP1696525A4 (en) | 2003-12-10 | 2009-07-22 | Panasonic Corp | LIGHT SOURCE USING THE LASER AND TWO DIMENSIONAL IMAGE FORMING DEVICE |
US7071117B2 (en) * | 2004-02-27 | 2006-07-04 | Micron Technology, Inc. | Semiconductor devices and methods for depositing a dielectric film |
KR100612415B1 (ko) * | 2004-04-09 | 2006-08-16 | 삼성전자주식회사 | 올 어라운드된 채널 영역을 갖는 트랜지스터 및 그 제조방법 |
KR100538101B1 (ko) * | 2004-07-07 | 2005-12-21 | 삼성전자주식회사 | 반도체 장치 및 이의 제조 방법 |
US20060043479A1 (en) * | 2004-09-02 | 2006-03-02 | Patrice Parris | Metal oxide semiconductor device including a shielding structure for low gate-drain capacitance |
US7211477B2 (en) * | 2005-05-06 | 2007-05-01 | Freescale Semiconductor, Inc. | High voltage field effect device and method |
JP5014622B2 (ja) * | 2005-12-08 | 2012-08-29 | オンセミコンダクター・トレーディング・リミテッド | 絶縁ゲート型半導体装置の製造方法 |
US7504676B2 (en) * | 2006-05-31 | 2009-03-17 | Alpha & Omega Semiconductor, Ltd. | Planar split-gate high-performance MOSFET structure and manufacturing method |
US8030153B2 (en) * | 2007-10-31 | 2011-10-04 | Freescale Semiconductor, Inc. | High voltage TMOS semiconductor device with low gate charge structure and method of making |
CN101800193B (zh) * | 2009-02-05 | 2013-06-19 | 尼克森微电子股份有限公司 | 沟渠式金氧半导体元件的制作方法 |
JP2011199000A (ja) * | 2010-03-19 | 2011-10-06 | Toshiba Corp | 半導体装置およびその製造方法 |
CN103839982A (zh) * | 2012-11-23 | 2014-06-04 | 上海华虹宏力半导体制造有限公司 | 平面栅超级结产品栅极版图结构 |
CN110212026B (zh) * | 2019-05-06 | 2022-09-16 | 上海功成半导体科技有限公司 | 超结mos器件结构及其制备方法 |
CN114068673A (zh) * | 2021-11-05 | 2022-02-18 | 华虹半导体(无锡)有限公司 | 超结沟槽栅mosfet及制造方法 |
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JP3113426B2 (ja) * | 1992-11-27 | 2000-11-27 | 三洋電機株式会社 | 絶縁ゲート半導体装置及びその製造方法 |
US6008520A (en) | 1994-12-30 | 1999-12-28 | Siliconix Incorporated | Trench MOSFET with heavily doped delta layer to provide low on- resistance |
JP3166148B2 (ja) * | 1995-07-11 | 2001-05-14 | 横河電機株式会社 | 半導体装置 |
EP0772242B1 (en) * | 1995-10-30 | 2006-04-05 | STMicroelectronics S.r.l. | Single feature size MOS technology power device |
US6096606A (en) * | 1998-05-04 | 2000-08-01 | Motorola, Inc. | Method of making a semiconductor device |
TW426891B (en) * | 1999-03-19 | 2001-03-21 | United Microelectronics Corp | Process of salicide |
US6186408B1 (en) * | 1999-05-28 | 2001-02-13 | Advanced Power Devices, Inc. | High cell density power rectifier |
US6380569B1 (en) | 1999-08-10 | 2002-04-30 | Rockwell Science Center, Llc | High power unipolar FET switch |
US6285060B1 (en) | 1999-12-30 | 2001-09-04 | Siliconix Incorporated | Barrier accumulation-mode MOSFET |
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2002
- 2002-07-01 US US10/187,580 patent/US6639276B2/en not_active Expired - Lifetime
- 2002-07-02 CN CNB028172809A patent/CN1333468C/zh not_active Expired - Fee Related
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Also Published As
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US6639276B2 (en) | 2003-10-28 |
EP1417721A4 (en) | 2008-04-09 |
CN1552105A (zh) | 2004-12-01 |
JP2004538626A (ja) | 2004-12-24 |
US6846706B2 (en) | 2005-01-25 |
US20030020115A1 (en) | 2003-01-30 |
US20040053448A1 (en) | 2004-03-18 |
WO2003005414A3 (en) | 2003-05-01 |
WO2003005414A2 (en) | 2003-01-16 |
AU2002318191A1 (en) | 2003-01-21 |
CN1333468C (zh) | 2007-08-22 |
KR100566599B1 (ko) | 2006-03-31 |
KR20040008252A (ko) | 2004-01-28 |
EP1417721A2 (en) | 2004-05-12 |
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