JP2017055016A - 半導体装置 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 49
- 239000012535 impurity Substances 0.000 claims abstract description 87
- 210000000746 body region Anatomy 0.000 claims abstract description 42
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 23
- 229910052710 silicon Inorganic materials 0.000 claims description 23
- 239000010703 silicon Substances 0.000 claims description 23
- 239000010410 layer Substances 0.000 description 37
- 230000015556 catabolic process Effects 0.000 description 26
- 230000005684 electric field Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 11
- 230000001133 acceleration Effects 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 238000005468 ion implantation Methods 0.000 description 7
- 229910052814 silicon oxide Inorganic materials 0.000 description 7
- 239000011229 interlayer Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 238000004645 scanning capacitance microscopy Methods 0.000 description 3
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004630 atomic force microscopy Methods 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/66—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
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/7813—Vertical DMOS transistors, i.e. VDMOS transistors with trench gate electrode, e.g. UMOS transistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/402—Field plates
- H01L29/404—Multiple field plate structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/08—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 with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/0843—Source or drain regions of field-effect devices
- H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
- H01L29/0852—Source or drain regions of field-effect devices of field-effect transistors with insulated gate of DMOS transistors
- H01L29/0873—Drain regions
- H01L29/0878—Impurity concentration or distribution
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/402—Field plates
- H01L29/407—Recessed field plates, e.g. trench field plates, buried field plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42364—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the insulating layer, e.g. thickness or uniformity
- H01L29/42368—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the insulating layer, e.g. thickness or uniformity the thickness being non-uniform
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- Condensed Matter Physics & Semiconductors (AREA)
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- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
本実施形態の半導体装置は、第1の面と第2の面とを有する半導体層と、半導体層内に設けられた第1導電型のドリフト領域と、ドリフト領域と第1の面との間の半導体層内に設けられた第2導電型のボディ領域と、ボディ領域と第1の面との間の半導体層に設けられた第1導電型のソース領域と、第1のゲート電極と、第1のゲート電極との間にボディ領域を挟んで設けられた第2のゲート電極と、第1のゲート電極とボディ領域との間に設けられた第1のゲート絶縁膜と、第2のゲート電極とボディ領域との間に設けられた第2のゲート絶縁膜と、第2の面と第1のゲート電極との間に設けられた第1のフィールドプレート電極と、第2の面と第2のゲート電極との間に設けられた第2のフィールドプレート電極と、第1のフィールドプレート電極とドリフト領域との間に設けられた第1のフィールドプレート絶縁膜と、第2のフィールドプレート電極とドリフト領域との間に設けられた第2のフィールドプレート絶縁膜と、少なくとも一部が、第1のフィールドプレート電極と第2のフィールドプレート電極との間のドリフト領域内に設けられた第1導電型の第1の領域と、第1の領域とボディ領域との間のドリフト領域内に設けられ、第1の領域よりも第1導電型不純物の濃度の高い第2の領域と、第2の領域とボディ領域との間のドリフト領域内に設けられ、第2の領域よりも第1導電型不純物の濃度の低い第3の領域と、を備える。
本実施形態の半導体装置は、第1の絶縁膜及び第2の絶縁膜を備えないこと以外は、第1の実施形態と同様である。したがって、第1の実施形態と重複する内容については記述を省略する。
14 n−型又はn型のドリフト領域
14a n−型の下部領域(第1の領域)
14b n型の中間領域(第2の領域)
14c n−型の上部領域(第3の領域)
16 p型のボディ領域
18 n+型のソース領域
22 第1のゲート電極
23 第2のゲート電極
24 第1のゲート絶縁膜
25 第2のゲート絶縁膜
26 第1のフィールドプレート電極
27 第2のフィールドプレート電極
28 第1のフィールドプレート絶縁膜
29 第2のフィールドプレート絶縁膜
30 第1の絶縁膜
31 第2の絶縁膜
34 ソース電極
36 ドレイン電極
100 MOSFET
200 MOSFET
Claims (8)
- 第1の面と第2の面とを有する半導体層と、
前記半導体層内に設けられた第1導電型のドリフト領域と、
前記ドリフト領域と前記第1の面との間の前記半導体層内に設けられた第2導電型のボディ領域と、
前記ボディ領域と前記第1の面との間の前記半導体層に設けられた第1導電型のソース領域と、
第1のゲート電極と、
前記第1のゲート電極との間に前記ボディ領域を挟んで設けられた第2のゲート電極と、
前記第1のゲート電極と前記ボディ領域との間に設けられた第1のゲート絶縁膜と、
前記第2のゲート電極と前記ボディ領域との間に設けられた第2のゲート絶縁膜と、
前記第2の面と前記第1のゲート電極との間に設けられた第1のフィールドプレート電極と、
前記第2の面と前記第2のゲート電極との間に設けられた第2のフィールドプレート電極と、
前記第1のフィールドプレート電極と前記ドリフト領域との間に設けられた第1のフィールドプレート絶縁膜と、
前記第2のフィールドプレート電極と前記ドリフト領域との間に設けられた第2のフィールドプレート絶縁膜と、
少なくとも一部が、前記第1のフィールドプレート電極と前記第2のフィールドプレート電極との間の前記ドリフト領域内に設けられた第1導電型の第1の領域と、
前記第1の領域と前記ボディ領域との間の前記ドリフト領域内に設けられ、前記第1の領域よりも第1導電型不純物の濃度の高い第2の領域と、
前記第2の領域と前記ボディ領域との間の前記ドリフト領域内に設けられ、前記第2の領域よりも第1導電型不純物の濃度の低い第3の領域と、
を備える半導体装置。 - 前記第2の領域の第1導電型不純物の濃度は、前記第1の領域の第1導電型不純物の濃度の1.5倍以上である請求項1記載の半導体装置。
- 前記第2の領域は、前記第1のフィールドプレートと前記第2のフィールドプレートとの間に設けられた請求項1又は請求項2記載の半導体装置。
- 前記第2の領域の第1導電型不純物の濃度が最大となる位置は、前記第1のフィールドプレートの前記2の面側の端部を含み前記第2の面に平行な面と、前記ドリフト領域と前記ボディ領域との境界を含み前記第2の面に平行な面との間を3等分する2つの面の間に位置する請求項1乃至請求項3いずれか一項記載の半導体装置。
- 前記第1のゲート電極と前記第1のフィールドプレート電極との間に設けられた第1の絶縁膜と、
前記第2のゲート電極と前記第2のフィールドプレート電極との間の設けられた第2の絶縁膜と、
を更に備える請求項1乃至請求項4いずれか一項記載の半導体装置。 - 前記第1の領域の第1導電型不純物の濃度は、前記第3の領域の第1導電型不純物の濃度と略同一である請求項1乃至請求項5いずれか一項記載の半導体装置。
- 前記第1の面に設けられ、前記ソース領域に電気的に接続されたソース電極と、
前記第2の面に設けられ、前記ドリフト領域に電気的に接続されドレイン電極と、
を更に備える請求項1乃至請求項6いずれか一項記載の半導体装置。 - 前記半導体層はシリコン層である請求項1乃至請求項7いずれか一項記載の半導体装置。
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JP2015179161A JP6400545B2 (ja) | 2015-09-11 | 2015-09-11 | 半導体装置 |
CN201610046097.9A CN106531783B (zh) | 2015-09-11 | 2016-01-25 | 半导体装置 |
US15/059,271 US9525059B1 (en) | 2015-09-11 | 2016-03-02 | Semiconductor device with graded drift region |
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US11362210B2 (en) | 2020-07-30 | 2022-06-14 | Kabushiki Kaisha Toshiba | Semiconductor device |
US11404550B2 (en) | 2019-12-06 | 2022-08-02 | Kabushiki Kaisha Toshiba | Semiconductor device and method for manufacturing the same |
US11646368B2 (en) | 2020-07-22 | 2023-05-09 | Kabushiki Kaisha Toshiba | Semiconductor device |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013171931A (ja) * | 2012-02-20 | 2013-09-02 | Renesas Electronics Corp | 半導体装置及び半導体装置の製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5637898A (en) | 1995-12-22 | 1997-06-10 | North Carolina State University | Vertical field effect transistors having improved breakdown voltage capability and low on-state resistance |
US6545316B1 (en) * | 2000-06-23 | 2003-04-08 | Silicon Wireless Corporation | MOSFET devices having linear transfer characteristics when operating in velocity saturation mode and methods of forming and operating same |
US5998833A (en) | 1998-10-26 | 1999-12-07 | North Carolina State University | Power semiconductor devices having improved high frequency switching and breakdown characteristics |
US6573558B2 (en) | 2001-09-07 | 2003-06-03 | Power Integrations, Inc. | High-voltage vertical transistor with a multi-layered extended drain structure |
JP2012204395A (ja) | 2011-03-23 | 2012-10-22 | Toshiba Corp | 半導体装置およびその製造方法 |
JP5661583B2 (ja) | 2011-09-21 | 2015-01-28 | 株式会社東芝 | 半導体装置の製造方法 |
JP5784665B2 (ja) | 2013-03-22 | 2015-09-24 | 株式会社東芝 | 半導体装置の製造方法 |
JP5799046B2 (ja) | 2013-03-22 | 2015-10-21 | 株式会社東芝 | 半導体装置 |
US20150108568A1 (en) * | 2013-10-21 | 2015-04-23 | Vishay-Siliconix | Semiconductor structure with high energy dopant implantation |
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JP2013171931A (ja) * | 2012-02-20 | 2013-09-02 | Renesas Electronics Corp | 半導体装置及び半導体装置の製造方法 |
Cited By (5)
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JP2019145633A (ja) * | 2018-02-20 | 2019-08-29 | 株式会社東芝 | 半導体装置 |
US11404550B2 (en) | 2019-12-06 | 2022-08-02 | Kabushiki Kaisha Toshiba | Semiconductor device and method for manufacturing the same |
US11646368B2 (en) | 2020-07-22 | 2023-05-09 | Kabushiki Kaisha Toshiba | Semiconductor device |
US11362210B2 (en) | 2020-07-30 | 2022-06-14 | Kabushiki Kaisha Toshiba | Semiconductor device |
US11791408B2 (en) | 2020-07-30 | 2023-10-17 | Kabushiki Kaisha Toshiba | Semiconductor device |
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CN106531783A (zh) | 2017-03-22 |
CN106531783B (zh) | 2019-08-20 |
JP6400545B2 (ja) | 2018-10-03 |
US9525059B1 (en) | 2016-12-20 |
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