JP5641995B2 - 半導体素子 - Google Patents

半導体素子 Download PDF

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Publication number
JP5641995B2
JP5641995B2 JP2011064668A JP2011064668A JP5641995B2 JP 5641995 B2 JP5641995 B2 JP 5641995B2 JP 2011064668 A JP2011064668 A JP 2011064668A JP 2011064668 A JP2011064668 A JP 2011064668A JP 5641995 B2 JP5641995 B2 JP 5641995B2
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JP
Japan
Prior art keywords
layer
type pillar
pillar layer
semiconductor layer
opening
Prior art date
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Active
Application number
JP2011064668A
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English (en)
Japanese (ja)
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JP2012204378A (ja
JP2012204378A5 (https=
Inventor
齋藤　渉
渉 齋藤
小野　昇太郎
昇太郎 小野
敏行 仲
敏行 仲
俊治 谷内
俊治 谷内
渡辺　美穂
美穂 渡辺
浩明 山下
浩明 山下
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Toshiba Corp
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Toshiba Corp
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Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP2011064668A priority Critical patent/JP5641995B2/ja
Priority to CN201210061291.6A priority patent/CN102694029B/zh
Priority to US13/424,340 priority patent/US8482028B2/en
Publication of JP2012204378A publication Critical patent/JP2012204378A/ja
Publication of JP2012204378A5 publication Critical patent/JP2012204378A5/ja
Application granted granted Critical
Publication of JP5641995B2 publication Critical patent/JP5641995B2/ja
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    • 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
    • H10D62/102—Constructional design considerations for preventing surface leakage or controlling electric field concentration
    • H10D62/103—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices
    • H10D62/105—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE] 
    • H10D62/109—Reduced surface field [RESURF] PN junction structures
    • H10D62/111—Multiple RESURF structures, e.g. double RESURF or 3D-RESURF structures
    • 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
    • H10D30/0291—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs
    • 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
    • H10D30/66—Vertical DMOS [VDMOS] FETs
    • H10D30/665—Vertical DMOS [VDMOS] FETs having edge termination structures
    • 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
    • H10D62/102—Constructional design considerations for preventing surface leakage or controlling electric field concentration
    • H10D62/103—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices
    • H10D62/105—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE] 
    • H10D62/106—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE]  having supplementary regions doped oppositely to or in rectifying contact with regions of the semiconductor bodies, e.g. guard rings with PN or Schottky junctions
    • 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
    • H10D62/124—Shapes, relative sizes or dispositions of the regions of semiconductor bodies or of junctions between the regions
    • H10D62/126—Top-view geometrical layouts of the regions or the junctions
    • H10D62/127—Top-view geometrical layouts of the regions or the junctions of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
    • 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
    • H10D62/154—Dispositions
    • 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
    • H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
    • H10D62/393—Body regions of DMOS transistors or IGBTs 
    • 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 
    • H10D64/23—Electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. sources, drains, anodes or cathodes
    • H10D64/251—Source or drain electrodes for field-effect devices
    • H10D64/252—Source or drain electrodes for field-effect devices for vertical or pseudo-vertical devices
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P30/00—Ion implantation into wafers, substrates or parts of devices
    • H10P30/20—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping
    • H10P30/22—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping using masks

Landscapes

  • Insulated Gate Type Field-Effect Transistor (AREA)
JP2011064668A 2011-03-23 2011-03-23 半導体素子 Active JP5641995B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2011064668A JP5641995B2 (ja) 2011-03-23 2011-03-23 半導体素子
CN201210061291.6A CN102694029B (zh) 2011-03-23 2012-03-09 半导体元件
US13/424,340 US8482028B2 (en) 2011-03-23 2012-03-19 Semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011064668A JP5641995B2 (ja) 2011-03-23 2011-03-23 半導体素子

Publications (3)

Publication Number Publication Date
JP2012204378A JP2012204378A (ja) 2012-10-22
JP2012204378A5 JP2012204378A5 (https=) 2013-09-19
JP5641995B2 true JP5641995B2 (ja) 2014-12-17

Family

ID=46859381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011064668A Active JP5641995B2 (ja) 2011-03-23 2011-03-23 半導体素子

Country Status (3)

Country Link
US (1) US8482028B2 (https=)
JP (1) JP5641995B2 (https=)
CN (1) CN102694029B (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9484451B2 (en) 2007-10-05 2016-11-01 Vishay-Siliconix MOSFET active area and edge termination area charge balance
JP2012074441A (ja) 2010-09-28 2012-04-12 Toshiba Corp 電力用半導体装置
US9842911B2 (en) 2012-05-30 2017-12-12 Vishay-Siliconix Adaptive charge balanced edge termination
US9887259B2 (en) * 2014-06-23 2018-02-06 Vishay-Siliconix Modulated super junction power MOSFET devices
JP6375176B2 (ja) * 2014-08-13 2018-08-15 ルネサスエレクトロニクス株式会社 半導体装置および半導体装置の製造方法
KR102098996B1 (ko) 2014-08-19 2020-04-08 비쉐이-실리코닉스 초접합 금속 산화물 반도체 전계 효과 트랜지스터

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3988262B2 (ja) 1998-07-24 2007-10-10 富士電機デバイステクノロジー株式会社 縦型超接合半導体素子およびその製造方法
DE19840032C1 (de) 1998-09-02 1999-11-18 Siemens Ag Halbleiterbauelement und Herstellungsverfahren dazu
JP3751463B2 (ja) 1999-03-23 2006-03-01 株式会社東芝 高耐圧半導体素子
JP4765012B2 (ja) * 2000-02-09 2011-09-07 富士電機株式会社 半導体装置及びその製造方法
US7638841B2 (en) * 2003-05-20 2009-12-29 Fairchild Semiconductor Corporation Power semiconductor devices and methods of manufacture
JP4882212B2 (ja) * 2003-08-20 2012-02-22 株式会社デンソー 縦型半導体装置
JP4289123B2 (ja) * 2003-10-29 2009-07-01 富士電機デバイステクノロジー株式会社 半導体装置
US7352036B2 (en) * 2004-08-03 2008-04-01 Fairchild Semiconductor Corporation Semiconductor power device having a top-side drain using a sinker trench
US7659588B2 (en) * 2006-01-26 2010-02-09 Siliconix Technology C. V. Termination for a superjunction device
JP5052025B2 (ja) * 2006-03-29 2012-10-17 株式会社東芝 電力用半導体素子
JP5188037B2 (ja) * 2006-06-20 2013-04-24 株式会社東芝 半導体装置
US7737469B2 (en) 2006-05-16 2010-06-15 Kabushiki Kaisha Toshiba Semiconductor device having superjunction structure formed of p-type and n-type pillar regions
JP4620075B2 (ja) * 2007-04-03 2011-01-26 株式会社東芝 電力用半導体素子
JP4564516B2 (ja) * 2007-06-21 2010-10-20 株式会社東芝 半導体装置
DE102007036147B4 (de) * 2007-08-02 2017-12-21 Infineon Technologies Austria Ag Verfahren zum Herstellen eines Halbleiterkörpers mit einer Rekombinationszone
US8174067B2 (en) * 2008-12-08 2012-05-08 Fairchild Semiconductor Corporation Trench-based power semiconductor devices with increased breakdown voltage characteristics
US8148749B2 (en) * 2009-02-19 2012-04-03 Fairchild Semiconductor Corporation Trench-shielded semiconductor device
JP5718627B2 (ja) * 2010-03-15 2015-05-13 ルネサスエレクトロニクス株式会社 半導体装置

Also Published As

Publication number Publication date
CN102694029A (zh) 2012-09-26
US8482028B2 (en) 2013-07-09
CN102694029B (zh) 2016-02-03
JP2012204378A (ja) 2012-10-22
US20120241847A1 (en) 2012-09-27

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