CN101719516A - 一种低栅极电荷深沟槽功率mos器件及其制造方法 - Google Patents
一种低栅极电荷深沟槽功率mos器件及其制造方法 Download PDFInfo
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- CN101719516A CN101719516A CN200910234492A CN200910234492A CN101719516A CN 101719516 A CN101719516 A CN 101719516A CN 200910234492 A CN200910234492 A CN 200910234492A CN 200910234492 A CN200910234492 A CN 200910234492A CN 101719516 A CN101719516 A CN 101719516A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 86
- 238000005530 etching Methods 0.000 claims description 21
- 239000004065 semiconductor Substances 0.000 claims description 16
- 229920002120 photoresistant polymer Polymers 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 13
- 229910044991 metal oxide Inorganic materials 0.000 claims description 13
- 150000004706 metal oxides Chemical class 0.000 claims description 13
- 230000008021 deposition Effects 0.000 claims description 12
- 238000001312 dry etching Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000001459 lithography Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- 229920005591 polysilicon Polymers 0.000 abstract description 14
- 230000003071 parasitic effect Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 241001528553 Malus asiatica Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen 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
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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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- 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)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
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CN200910234492XA CN101719516B (zh) | 2009-11-20 | 2009-11-20 | 一种低栅极电荷深沟槽功率mos器件及其制造方法 |
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CN200910234492XA CN101719516B (zh) | 2009-11-20 | 2009-11-20 | 一种低栅极电荷深沟槽功率mos器件及其制造方法 |
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CN101719516A true CN101719516A (zh) | 2010-06-02 |
CN101719516B CN101719516B (zh) | 2011-04-06 |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103426925A (zh) * | 2012-05-14 | 2013-12-04 | 上海华虹Nec电子有限公司 | 低栅极电荷沟槽功率mos器件及制造方法 |
CN103579320A (zh) * | 2012-07-31 | 2014-02-12 | 上海华虹Nec电子有限公司 | 沟槽型栅极及制造方法 |
CN104795445A (zh) * | 2015-04-01 | 2015-07-22 | 苏州东微半导体有限公司 | 一种低损耗的超结功率器件及其制造方法 |
CN105895516A (zh) * | 2016-04-29 | 2016-08-24 | 深圳尚阳通科技有限公司 | 具有屏蔽栅的沟槽栅mosfet的制造方法 |
CN106876278A (zh) * | 2017-03-01 | 2017-06-20 | 上海华虹宏力半导体制造有限公司 | 具有屏蔽栅的沟槽栅器件的制造方法 |
CN108666361A (zh) * | 2017-03-31 | 2018-10-16 | 深圳尚阳通科技有限公司 | 一种通孔免对位的功率器件及其制造方法 |
CN108831832A (zh) * | 2018-05-07 | 2018-11-16 | 株洲中车时代电气股份有限公司 | 沟槽台阶栅igbt芯片的制作方法 |
CN109103257A (zh) * | 2018-07-09 | 2018-12-28 | 苏州硅能半导体科技股份有限公司 | 高可靠性深沟槽功率mos器件 |
CN111180341A (zh) * | 2020-02-18 | 2020-05-19 | 中芯集成电路制造(绍兴)有限公司 | 屏蔽栅场效应晶体管及其形成方法 |
CN111180342A (zh) * | 2020-02-18 | 2020-05-19 | 中芯集成电路制造(绍兴)有限公司 | 屏蔽栅场效应晶体管及其形成方法 |
CN113078066A (zh) * | 2021-03-30 | 2021-07-06 | 电子科技大学 | 一种分离栅功率mosfet器件的制造方法 |
CN113611747A (zh) * | 2021-08-04 | 2021-11-05 | 济南市半导体元件实验所 | 集成势垒夹断二极管的sgt功率mos器件及加工工艺 |
CN117352557A (zh) * | 2023-12-06 | 2024-01-05 | 无锡锡产微芯半导体有限公司 | 一种集成式sgt mosfet及其制备工艺 |
CN117476770A (zh) * | 2023-11-16 | 2024-01-30 | 华羿微电子股份有限公司 | 一种低栅极电荷屏蔽栅mosfet器件及其制作方法 |
CN113611747B (zh) * | 2021-08-04 | 2024-11-05 | 济南晶恒电子有限责任公司 | 集成势垒夹断二极管的sgt功率mos器件及加工工艺 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100555666C (zh) * | 2007-12-22 | 2009-10-28 | 苏州硅能半导体科技股份有限公司 | 一种深沟槽大功率mos器件及其制造方法 |
CN100565879C (zh) * | 2008-01-08 | 2009-12-02 | 苏州硅能半导体科技股份有限公司 | 一种深沟槽大功率mos器件及其制造方法 |
CN201146191Y (zh) * | 2008-01-08 | 2008-11-05 | 苏州硅能半导体科技股份有限公司 | 一种深沟槽大功率n型mos器件 |
CN201181707Y (zh) * | 2008-03-25 | 2009-01-14 | 苏州硅能半导体科技股份有限公司 | 改善沟槽功率mos器件栅电极金属层粘附性的结构 |
CN100555635C (zh) * | 2008-04-11 | 2009-10-28 | 苏州硅能半导体科技股份有限公司 | 一种功率沟槽式mos场效应管及其制造方法 |
-
2009
- 2009-11-20 CN CN200910234492XA patent/CN101719516B/zh active Active
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103426925A (zh) * | 2012-05-14 | 2013-12-04 | 上海华虹Nec电子有限公司 | 低栅极电荷沟槽功率mos器件及制造方法 |
CN103579320A (zh) * | 2012-07-31 | 2014-02-12 | 上海华虹Nec电子有限公司 | 沟槽型栅极及制造方法 |
CN104795445A (zh) * | 2015-04-01 | 2015-07-22 | 苏州东微半导体有限公司 | 一种低损耗的超结功率器件及其制造方法 |
CN105895516A (zh) * | 2016-04-29 | 2016-08-24 | 深圳尚阳通科技有限公司 | 具有屏蔽栅的沟槽栅mosfet的制造方法 |
CN105895516B (zh) * | 2016-04-29 | 2018-08-31 | 深圳尚阳通科技有限公司 | 具有屏蔽栅的沟槽栅mosfet的制造方法 |
CN106876278A (zh) * | 2017-03-01 | 2017-06-20 | 上海华虹宏力半导体制造有限公司 | 具有屏蔽栅的沟槽栅器件的制造方法 |
CN108666361A (zh) * | 2017-03-31 | 2018-10-16 | 深圳尚阳通科技有限公司 | 一种通孔免对位的功率器件及其制造方法 |
CN108666361B (zh) * | 2017-03-31 | 2022-04-12 | 深圳尚阳通科技有限公司 | 一种通孔免对位的功率器件及其制造方法 |
CN108831832B (zh) * | 2018-05-07 | 2020-08-14 | 株洲中车时代电气股份有限公司 | 沟槽台阶栅igbt芯片的制作方法 |
CN108831832A (zh) * | 2018-05-07 | 2018-11-16 | 株洲中车时代电气股份有限公司 | 沟槽台阶栅igbt芯片的制作方法 |
CN109103257A (zh) * | 2018-07-09 | 2018-12-28 | 苏州硅能半导体科技股份有限公司 | 高可靠性深沟槽功率mos器件 |
CN111180342A (zh) * | 2020-02-18 | 2020-05-19 | 中芯集成电路制造(绍兴)有限公司 | 屏蔽栅场效应晶体管及其形成方法 |
CN111180341A (zh) * | 2020-02-18 | 2020-05-19 | 中芯集成电路制造(绍兴)有限公司 | 屏蔽栅场效应晶体管及其形成方法 |
CN111180342B (zh) * | 2020-02-18 | 2022-07-15 | 绍兴中芯集成电路制造股份有限公司 | 屏蔽栅场效应晶体管及其形成方法 |
CN111180341B (zh) * | 2020-02-18 | 2022-08-02 | 绍兴中芯集成电路制造股份有限公司 | 屏蔽栅场效应晶体管及其形成方法 |
CN113078066A (zh) * | 2021-03-30 | 2021-07-06 | 电子科技大学 | 一种分离栅功率mosfet器件的制造方法 |
CN113078066B (zh) * | 2021-03-30 | 2023-05-26 | 电子科技大学 | 一种分离栅功率mosfet器件的制造方法 |
CN113611747A (zh) * | 2021-08-04 | 2021-11-05 | 济南市半导体元件实验所 | 集成势垒夹断二极管的sgt功率mos器件及加工工艺 |
CN113611747B (zh) * | 2021-08-04 | 2024-11-05 | 济南晶恒电子有限责任公司 | 集成势垒夹断二极管的sgt功率mos器件及加工工艺 |
CN117476770A (zh) * | 2023-11-16 | 2024-01-30 | 华羿微电子股份有限公司 | 一种低栅极电荷屏蔽栅mosfet器件及其制作方法 |
CN117352557A (zh) * | 2023-12-06 | 2024-01-05 | 无锡锡产微芯半导体有限公司 | 一种集成式sgt mosfet及其制备工艺 |
CN117352557B (zh) * | 2023-12-06 | 2024-04-09 | 无锡锡产微芯半导体有限公司 | 一种集成式sgt mosfet及其制备工艺 |
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Effective date of registration: 20240130 Address after: Room 306, Building 2, No.1 Qingshan Road, High tech Zone, Suzhou City, Jiangsu Province, 215100 Patentee after: New Silicon Microelectronics (Suzhou) Co.,Ltd. Country or region after: China Address before: 518000 Room 201, building A, 1 front Bay Road, Shenzhen Qianhai cooperation zone, Shenzhen, Guangdong Patentee before: Shenzhen Hemeiyuan Technology Co.,Ltd. Country or region before: China Effective date of registration: 20240130 Address after: 518000 Room 201, building A, 1 front Bay Road, Shenzhen Qianhai cooperation zone, Shenzhen, Guangdong Patentee after: Shenzhen Hemeiyuan Technology Co.,Ltd. Country or region after: China Address before: Unit C301, International Science and Technology Park, 1355 Jinjihu Avenue, Suzhou Industrial Park, Suzhou City, Jiangsu Province, 215021 Patentee before: SUZHOU SILIKRON SEMICONDUCTOR TECHNOLOGY CO.,LTD. Country or region before: China |