CN103413765B - 沟槽mosfet器件及其制作方法 - Google Patents
沟槽mosfet器件及其制作方法 Download PDFInfo
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- CN103413765B CN103413765B CN201310378544.7A CN201310378544A CN103413765B CN 103413765 B CN103413765 B CN 103413765B CN 201310378544 A CN201310378544 A CN 201310378544A CN 103413765 B CN103413765 B CN 103413765B
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- 238000002360 preparation method Methods 0.000 title abstract description 8
- 230000004888 barrier function Effects 0.000 claims abstract description 120
- 229910052751 metal Inorganic materials 0.000 claims abstract description 68
- 239000002184 metal Substances 0.000 claims abstract description 68
- 238000000034 method Methods 0.000 claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims abstract description 32
- 238000005530 etching Methods 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 238000000151 deposition Methods 0.000 claims abstract description 17
- 230000008021 deposition Effects 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 46
- 229920005591 polysilicon Polymers 0.000 claims description 46
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
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- 230000004044 response Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000001259 photo etching Methods 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 230000005611 electricity Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000007254 oxidation reaction Methods 0.000 description 1
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- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66674—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/66712—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/66734—Vertical DMOS transistors, i.e. VDMOS transistors with a step of recessing the gate electrode, e.g. to form a trench gate electrode
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- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
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- 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]
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
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- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41766—Source or drain electrodes for field effect devices with at least part of the source or drain electrode having contact below the semiconductor surface, e.g. the source or drain electrode formed at least partially in a groove or with inclusions of conductor inside the semiconductor
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- 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
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- 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
- H01L29/42372—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out
- H01L29/42376—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out characterised by the length or the sectional shape
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66484—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with multiple gate, at least one gate being an insulated gate
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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
- H01L29/76—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
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- 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
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- 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
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- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/4916—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET the conductor material next to the insulator being a silicon layer, e.g. polysilicon doped with boron, phosphorus or nitrogen
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66515—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using self aligned selective metal deposition simultaneously on the gate and on source or drain
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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)
- Manufacturing & Machinery (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (17)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310378544.7A CN103413765B (zh) | 2013-08-27 | 2013-08-27 | 沟槽mosfet器件及其制作方法 |
TW103113218A TWI541905B (zh) | 2013-08-27 | 2014-04-10 | Trench metal oxide semiconductor field effect transistor element and manufacturing method thereof |
US14/469,748 US9171921B2 (en) | 2013-08-27 | 2014-08-27 | Trench MOSFET and method for fabricating the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310378544.7A CN103413765B (zh) | 2013-08-27 | 2013-08-27 | 沟槽mosfet器件及其制作方法 |
Publications (2)
Publication Number | Publication Date |
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CN103413765A CN103413765A (zh) | 2013-11-27 |
CN103413765B true CN103413765B (zh) | 2016-08-10 |
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CN201310378544.7A Active CN103413765B (zh) | 2013-08-27 | 2013-08-27 | 沟槽mosfet器件及其制作方法 |
Country Status (3)
Country | Link |
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US (1) | US9171921B2 (zh) |
CN (1) | CN103413765B (zh) |
TW (1) | TWI541905B (zh) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20130104200A (ko) * | 2012-03-13 | 2013-09-25 | 에스케이하이닉스 주식회사 | 반도체 장치 및 그 제조 방법 |
CN103311112B (zh) | 2013-06-14 | 2016-01-27 | 矽力杰半导体技术(杭州)有限公司 | 在沟槽内形成多晶硅的方法 |
CN103413765B (zh) | 2013-08-27 | 2016-08-10 | 矽力杰半导体技术(杭州)有限公司 | 沟槽mosfet器件及其制作方法 |
US20150118832A1 (en) * | 2013-10-24 | 2015-04-30 | Applied Materials, Inc. | Methods for patterning a hardmask layer for an ion implantation process |
CN104600106B (zh) * | 2013-10-30 | 2017-05-17 | 和舰科技(苏州)有限公司 | 沟槽型功率器件及其形成方法 |
JP6478316B2 (ja) * | 2014-11-10 | 2019-03-06 | ローム株式会社 | トレンチゲート構造を備えた半導体装置およびその製造方法 |
CN105097697B (zh) * | 2015-06-15 | 2019-04-05 | 上海新储集成电路有限公司 | 一种实现高电压集成cmos器件的器件结构和制备方法 |
CN106409888A (zh) * | 2015-07-31 | 2017-02-15 | 帅群微电子股份有限公司 | 沟槽式功率晶体管结构及其制造方法 |
CN105529273B (zh) * | 2016-01-15 | 2018-08-21 | 上海华虹宏力半导体制造有限公司 | 沟槽栅功率器件的制造方法 |
CN106328511B (zh) * | 2016-10-11 | 2020-07-31 | 南京矽力微电子技术有限公司 | 半导体器件的电极制作方法 |
TWI628791B (zh) * | 2017-01-16 | 2018-07-01 | 通嘉科技股份有限公司 | 具有立體超接面的金氧半場效功率元件及其製造方法 |
CN110896026A (zh) | 2019-11-22 | 2020-03-20 | 矽力杰半导体技术(杭州)有限公司 | 沟槽型mosfet结构及其制造方法 |
CN111129152B (zh) * | 2019-12-17 | 2023-09-26 | 杭州芯迈半导体技术有限公司 | 沟槽mosfet结构及其制造方法 |
CN111554746B (zh) | 2020-04-23 | 2022-09-16 | 杭州芯迈半导体技术有限公司 | 碳化硅mosfet器件及其制造方法 |
CN112071750B (zh) * | 2020-09-11 | 2022-08-02 | 中国电子科技集团公司第五十八研究所 | 一种降低trench DMOS栅电容的制造方法 |
CN112820645B (zh) * | 2020-12-31 | 2022-07-05 | 北京燕东微电子科技有限公司 | 一种功率半导体器件及其制备方法 |
CN115172322A (zh) * | 2022-09-08 | 2022-10-11 | 深圳芯能半导体技术有限公司 | Mosfet的结构、制造方法及功率器件、电子设备 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101819974A (zh) * | 2010-04-22 | 2010-09-01 | 上海宏力半导体制造有限公司 | 沟槽式金属氧化物半导体晶体管 |
CN102254826A (zh) * | 2010-05-18 | 2011-11-23 | 万国半导体股份有限公司 | 带通道截止沟槽的双栅极氧化物沟槽mosfet及三或四掩膜工艺 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US7897462B2 (en) * | 2008-11-14 | 2011-03-01 | Semiconductor Components Industries, L.L.C. | Method of manufacturing semiconductor component with gate and shield electrodes in trenches |
US8633539B2 (en) * | 2011-06-27 | 2014-01-21 | Infineon Technologies Austria Ag | Trench transistor and manufacturing method of the trench transistor |
CN103199053B (zh) | 2013-04-12 | 2015-08-19 | 矽力杰半导体技术(杭州)有限公司 | 沟槽的形成方法及半导体结构 |
CN103413765B (zh) | 2013-08-27 | 2016-08-10 | 矽力杰半导体技术(杭州)有限公司 | 沟槽mosfet器件及其制作方法 |
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2013
- 2013-08-27 CN CN201310378544.7A patent/CN103413765B/zh active Active
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2014
- 2014-04-10 TW TW103113218A patent/TWI541905B/zh active
- 2014-08-27 US US14/469,748 patent/US9171921B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101819974A (zh) * | 2010-04-22 | 2010-09-01 | 上海宏力半导体制造有限公司 | 沟槽式金属氧化物半导体晶体管 |
CN102254826A (zh) * | 2010-05-18 | 2011-11-23 | 万国半导体股份有限公司 | 带通道截止沟槽的双栅极氧化物沟槽mosfet及三或四掩膜工艺 |
Also Published As
Publication number | Publication date |
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US9171921B2 (en) | 2015-10-27 |
TWI541905B (zh) | 2016-07-11 |
CN103413765A (zh) | 2013-11-27 |
TW201511137A (zh) | 2015-03-16 |
US20150061002A1 (en) | 2015-03-05 |
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