JP2016152266A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2016152266A JP2016152266A JP2015027742A JP2015027742A JP2016152266A JP 2016152266 A JP2016152266 A JP 2016152266A JP 2015027742 A JP2015027742 A JP 2015027742A JP 2015027742 A JP2015027742 A JP 2015027742A JP 2016152266 A JP2016152266 A JP 2016152266A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 59
- 239000011229 interlayer Substances 0.000 claims description 29
- 239000010410 layer Substances 0.000 claims description 24
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229910020177 SiOF Inorganic materials 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 229920000052 poly(p-xylylene) Polymers 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 239000012260 resinous material Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 description 25
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MXSJNBRAMXILSE-UHFFFAOYSA-N [Si].[P].[B] Chemical compound [Si].[P].[B] MXSJNBRAMXILSE-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- H—ELECTRICITY
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- 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
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
- H01L29/7393—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET
- H01L29/7395—Vertical transistors, e.g. vertical IGBT
- H01L29/7396—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions
- H01L29/7397—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions and a gate structure lying on a slanted or vertical surface or formed in a groove, e.g. trench gate IGBT
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- 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
- H01L29/02—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
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- H01L29/0611—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 for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices
- H01L29/0615—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 for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE]
- H01L29/0619—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 for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/402—Field plates
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/408—Electrodes ; Multistep manufacturing processes therefor with an insulating layer with a particular dielectric or electrostatic property, e.g. with static charges or for controlling trapped charges or moving ions, or with a plate acting on the insulator potential or the insulator charges, e.g. for controlling charges effect or potential distribution in the insulating layer, or with a semi-insulating layer contacting directly the semiconductor surface
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
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- H—ELECTRICITY
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- 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
- H01L29/02—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
- H01L29/0684—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 the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
- H01L29/0692—Surface layout
- H01L29/0696—Surface layout of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
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- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/51—Insulating materials associated therewith
- H01L29/511—Insulating materials associated therewith with a compositional variation, e.g. multilayer structures
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
特許文献1 特開2006−245477号公報
特許文献2 特開2009−81385号公報
特許文献3 特開2005−57238号公報
特許文献4 特開平5−243561号公報
特許文献5 特開2001−308327号公報
非特許文献1 エム・ヤマグチ(M.Yamaguchi)、外7名、IEGT デザイン クライテリオン フォア リデューシング EMI ノイズ(IEGT Design Criterion for Reducing EMI Noise)、プロシーディングス オブ 2004 インターナショナル シンポジウム オン パワー セミコンダクター デバイシズ アンド ICs(Proceedings of 2004 International Symposium on Power Semiconductor Devices & ICs)、2004年5月、p.115−118
非特許文献2 ワイ・オノザワ(Y.Onozawa)、外5名、デベロップメント オブ ザ ネクスト ジェネレーション 1200V トレンチ−ゲート FS−IGBT フィーチャリング ロウワー EMI ノイズ アンド ロウワー スイッチング ロス(Development of the next generation 1200V trench−gate FS−IGBT featuring lower EMI noise and lower switching loss)、プロシーディングス オブ ザ 19th インターナショナル シンポジウム オン パワー セミコンダクター デバイシズ アンド ICs(Proceedings of the 19th International Symposium on Power Semiconductor Devices & ICs)、(済州島)、2007年5月27日−30日、p.13−16
図1は、実施例1に係る半導体装置100の構成の一例を示す。半導体装置100は、複数のトレンチ6を備えるnチャネル型IGBTの一例である。n−ドリフト層1を構成するシリコン基板の裏面側にp+コレクタ領域2、n+バッファ層3が設けられ、表面側にp層4が設けられる。
図3は、実施例2に係る半導体装置100の構成の一例を示す。本例の半導体装置100は、低誘電率膜15に積層された層間絶縁膜9を備える。
Claims (12)
- 複数のトレンチを有する半導体装置であって、
エミッタ電極と、
隣接する前記トレンチ間に設けられた第1導電型のフローティング層と、
前記フローティング層と前記エミッタ電極との間に設けられた低誘電率膜と
を備え、
前記低誘電率膜の比誘電率が3.9より低い
半導体装置。 - 前記トレンチ内に形成されたゲート電極をさらに備え、
前記ゲート電極と前記フローティング層との間の容量は、前記エミッタ電極と前記フローティング層との間の容量の6倍よりも大きい
請求項1に記載の半導体装置。 - 前記低誘電率膜の膜厚が1μm以下である
請求項1又は2に記載の半導体装置。 - 前記低誘電率膜の材料は、SiOF、SiOC、Si−H含有SiO2、メチル基含有SiO2、パレリン系樹脂、ポリアリルエーテル系樹脂及びポーラス材料のいずれか1つを含む
請求項1から3のいずれか一項に記載の半導体装置。 - 前記低誘電率膜と前記フローティング層との間に、前記低誘電率膜よりも比誘電率の高い第1層間絶縁膜をさらに備える
請求項1から4のいずれか一項の記載の半導体装置。 - 前記第1層間絶縁膜の膜厚は、前記低誘電率膜の膜厚よりも薄い
請求項5に記載の半導体装置。 - 前記第1層間絶縁膜はゲート熱酸化膜である
請求項5又は6に記載の半導体装置。 - 前記第1層間絶縁膜は、LOCOS膜である
請求項5又は6に記載の半導体装置。 - 前記低誘電率膜と前記第1層間絶縁膜との間に、前記低誘電率膜よりも比誘電率の高い第2層間絶縁膜をさらに備える
請求項5から8のいずれか一項に記載の半導体装置。 - 前記第2層間絶縁膜の膜厚は、前記第1層間絶縁膜の膜厚よりも厚い
請求項9に記載の半導体装置。 - 平面視で、前記エミッタ電極が形成された領域は、
前記低誘電率膜及び前記第2層間絶縁膜が形成された第1領域と、
前記第2層間絶縁膜が形成され、前記低誘電率膜が形成されない第2領域と
を含む
請求項9又は10に記載の半導体装置。 - 前記エミッタ電極は、前記第2領域において、ワイヤボンディング用のワイヤと接続される
請求項11に記載の半導体装置。
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JP2015027742A JP6729999B2 (ja) | 2015-02-16 | 2015-02-16 | 半導体装置 |
US14/970,545 US9711629B2 (en) | 2015-02-16 | 2015-12-16 | Semiconductor device having low-dielectric-constant film |
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JP2015027742A JP6729999B2 (ja) | 2015-02-16 | 2015-02-16 | 半導体装置 |
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Families Citing this family (4)
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CN108010881B (zh) | 2016-10-31 | 2021-03-16 | 中芯国际集成电路制造(上海)有限公司 | 半导体装置的制造方法 |
KR20180104236A (ko) | 2017-03-10 | 2018-09-20 | 매그나칩 반도체 유한회사 | 전력 반도체 소자의 제조 방법 |
CN109524396B (zh) * | 2017-09-20 | 2023-05-12 | 株式会社东芝 | 半导体装置 |
EP3471147B1 (en) * | 2017-10-10 | 2020-08-05 | ABB Power Grids Switzerland AG | Insulated gate bipolar transistor |
Citations (5)
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JP2001308327A (ja) * | 2000-04-26 | 2001-11-02 | Fuji Electric Co Ltd | 絶縁ゲート型半導体装置 |
JP2005223173A (ja) * | 2004-02-06 | 2005-08-18 | Matsushita Electric Ind Co Ltd | 半導体装置およびその製造方法 |
JP2011258833A (ja) * | 2010-06-10 | 2011-12-22 | Fuji Electric Co Ltd | 半導体装置および半導体装置の製造方法 |
JP2014049694A (ja) * | 2012-09-03 | 2014-03-17 | Renesas Electronics Corp | Igbt |
WO2014174911A1 (ja) * | 2013-04-23 | 2014-10-30 | 三菱電機株式会社 | 半導体装置 |
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US4160991A (en) * | 1977-10-25 | 1979-07-10 | International Business Machines Corporation | High performance bipolar device and method for making same |
EP1469524A3 (en) | 1991-08-08 | 2005-07-06 | Kabushiki Kaisha Toshiba | Insulated trench gate bipolar transistor |
US6583043B2 (en) * | 2001-07-27 | 2003-06-24 | Motorola, Inc. | Dielectric between metal structures and method therefor |
CN1577796A (zh) | 2003-07-10 | 2005-02-09 | 精工爱普生株式会社 | 电子器件的制造方法和半导体器件的制造方法 |
CN100407441C (zh) * | 2003-09-25 | 2008-07-30 | 松下电器产业株式会社 | 半导体器件及其制造方法 |
JP2006245477A (ja) | 2005-03-07 | 2006-09-14 | Toshiba Corp | 半導体装置 |
JP2009081385A (ja) | 2007-09-27 | 2009-04-16 | Fuji Electric Device Technology Co Ltd | 半導体装置 |
JP5560538B2 (ja) * | 2008-05-22 | 2014-07-30 | 富士電機株式会社 | 半導体装置の製造方法 |
US8319278B1 (en) * | 2009-03-31 | 2012-11-27 | Maxpower Semiconductor, Inc. | Power device structures and methods using empty space zones |
JP2011210916A (ja) * | 2010-03-30 | 2011-10-20 | Mitsumi Electric Co Ltd | 半導体装置の製造方法 |
CN103650148B (zh) * | 2011-07-07 | 2016-06-01 | Abb技术有限公司 | 绝缘栅双极晶体管 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001308327A (ja) * | 2000-04-26 | 2001-11-02 | Fuji Electric Co Ltd | 絶縁ゲート型半導体装置 |
JP2005223173A (ja) * | 2004-02-06 | 2005-08-18 | Matsushita Electric Ind Co Ltd | 半導体装置およびその製造方法 |
JP2011258833A (ja) * | 2010-06-10 | 2011-12-22 | Fuji Electric Co Ltd | 半導体装置および半導体装置の製造方法 |
JP2014049694A (ja) * | 2012-09-03 | 2014-03-17 | Renesas Electronics Corp | Igbt |
WO2014174911A1 (ja) * | 2013-04-23 | 2014-10-30 | 三菱電機株式会社 | 半導体装置 |
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US9711629B2 (en) | 2017-07-18 |
US20160240638A1 (en) | 2016-08-18 |
JP6729999B2 (ja) | 2020-07-29 |
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