CN108364870B - 改善栅极氧化层质量的屏蔽栅沟槽mosfet制造方法 - Google Patents
改善栅极氧化层质量的屏蔽栅沟槽mosfet制造方法 Download PDFInfo
- Publication number
- CN108364870B CN108364870B CN201810062556.1A CN201810062556A CN108364870B CN 108364870 B CN108364870 B CN 108364870B CN 201810062556 A CN201810062556 A CN 201810062556A CN 108364870 B CN108364870 B CN 108364870B
- Authority
- CN
- China
- Prior art keywords
- oxide layer
- polysilicon
- gate
- deep
- etching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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]
- H10D30/025—Manufacture or treatment of FETs having insulated gates [IGFET] of vertical IGFETs
-
- 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]
- H10D30/63—Vertical IGFETs
-
- 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
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/01—Manufacture or treatment
-
- 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
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/512—Disposition of the gate electrodes, e.g. buried gates
- H10D64/513—Disposition of the gate electrodes, e.g. buried gates within recesses in the substrate, e.g. trench gates, groove gates or buried gates
-
- 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
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/514—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the insulating layers
Landscapes
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810062556.1A CN108364870B (zh) | 2018-01-23 | 2018-01-23 | 改善栅极氧化层质量的屏蔽栅沟槽mosfet制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810062556.1A CN108364870B (zh) | 2018-01-23 | 2018-01-23 | 改善栅极氧化层质量的屏蔽栅沟槽mosfet制造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108364870A CN108364870A (zh) | 2018-08-03 |
CN108364870B true CN108364870B (zh) | 2021-03-02 |
Family
ID=63006576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810062556.1A Active CN108364870B (zh) | 2018-01-23 | 2018-01-23 | 改善栅极氧化层质量的屏蔽栅沟槽mosfet制造方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108364870B (zh) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112864248B (zh) * | 2019-11-28 | 2024-08-09 | 南通尚阳通集成电路有限公司 | Sgtmosfet器件及制造方法 |
CN111276394B (zh) * | 2020-02-18 | 2022-09-23 | 捷捷微电(上海)科技有限公司 | 一种分离栅mosfet的制作方法 |
CN111463282B (zh) * | 2020-03-30 | 2023-09-26 | 南京华瑞微集成电路有限公司 | 集成启动管和采样管的低压超结dmos结构及制备方法 |
CN111446157A (zh) * | 2020-04-07 | 2020-07-24 | 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 |
CN112185816B (zh) * | 2020-08-14 | 2022-04-08 | 江苏东海半导体股份有限公司 | 一种高能效屏蔽栅沟槽mosfet及其制造方法 |
CN112133637B (zh) * | 2020-11-30 | 2021-02-12 | 中芯集成电路制造(绍兴)有限公司 | 具有屏蔽栅沟槽的半导体器件的制造方法 |
CN112908841B (zh) * | 2021-03-24 | 2024-03-22 | 上海华虹宏力半导体制造有限公司 | 半导体器件的制备方法 |
CN113471078A (zh) * | 2021-06-11 | 2021-10-01 | 上海格瑞宝电子有限公司 | 一种sgt-mosfet及其制造方法 |
CN113725078A (zh) * | 2021-09-11 | 2021-11-30 | 捷捷微电(上海)科技有限公司 | 一种分离栅mosfet的制作方法 |
CN114038746A (zh) * | 2021-10-26 | 2022-02-11 | 上海华虹宏力半导体制造有限公司 | 在沟槽中形成绝缘氧化层的方法 |
CN115548105A (zh) * | 2022-09-23 | 2022-12-30 | 华虹半导体(无锡)有限公司 | 屏蔽沟槽栅的制造方法 |
CN118073186A (zh) * | 2022-11-22 | 2024-05-24 | 华润微电子(重庆)有限公司 | 一种屏蔽栅功率mosfet及其制作方法 |
CN116053315A (zh) * | 2023-02-16 | 2023-05-02 | 捷捷微电(南通)科技有限公司 | 一种sgt器件制作方法 |
CN116344622A (zh) * | 2023-05-25 | 2023-06-27 | 成都吉莱芯科技有限公司 | 一种低输出电容的sgt mosfet器件及制作方法 |
CN117012830A (zh) * | 2023-08-18 | 2023-11-07 | 广微集成技术(深圳)有限公司 | 一种屏蔽栅沟槽vdmos器件及其制造方法 |
CN117457499A (zh) * | 2023-11-01 | 2024-01-26 | 中晶新源(上海)半导体有限公司 | 一种改善屏蔽栅功率半导体器件hdp填充的工艺方法 |
CN117524878A (zh) * | 2023-11-13 | 2024-02-06 | 中晶新源(上海)半导体有限公司 | 一种sgt-mosfet的制作方法 |
CN117410173B (zh) * | 2023-12-15 | 2024-03-08 | 中晶新源(上海)半导体有限公司 | 一种阶梯介质层的沟槽半导体器件的制作方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101315893A (zh) * | 2007-05-30 | 2008-12-03 | 上海华虹Nec电子有限公司 | 沟槽型双层栅功率mos结构实现方法 |
CN105914234A (zh) * | 2016-06-28 | 2016-08-31 | 上海华虹宏力半导体制造有限公司 | 分离栅功率mos管结构及制作方法 |
CN106206322A (zh) * | 2016-08-30 | 2016-12-07 | 西安龙腾新能源科技发展有限公司 | 自对准低压超结mofet的制造方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7652326B2 (en) * | 2003-05-20 | 2010-01-26 | Fairchild Semiconductor Corporation | Power semiconductor devices and methods of manufacture |
-
2018
- 2018-01-23 CN CN201810062556.1A patent/CN108364870B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101315893A (zh) * | 2007-05-30 | 2008-12-03 | 上海华虹Nec电子有限公司 | 沟槽型双层栅功率mos结构实现方法 |
CN105914234A (zh) * | 2016-06-28 | 2016-08-31 | 上海华虹宏力半导体制造有限公司 | 分离栅功率mos管结构及制作方法 |
CN106206322A (zh) * | 2016-08-30 | 2016-12-07 | 西安龙腾新能源科技发展有限公司 | 自对准低压超结mofet的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN108364870A (zh) | 2018-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108364870B (zh) | 改善栅极氧化层质量的屏蔽栅沟槽mosfet制造方法 | |
US11088253B2 (en) | Gate structure of semiconductor device and manufacturing method therefor | |
CN108735605A (zh) | 改善沟槽底部场板形貌的屏蔽栅沟槽mosfet制造方法 | |
CN114975602B (zh) | 一种高可靠性的igbt芯片及其制作方法 | |
WO2017043608A1 (ja) | 半導体装置 | |
CN108091573B (zh) | 屏蔽栅沟槽mosfet esd结构的制造方法 | |
CN105489500B (zh) | 超结vdmos的制备方法及其超结vdmos器件 | |
CN105655402B (zh) | 低压超结mosfet终端结构及其制造方法 | |
CN111403289B (zh) | 一种分离栅mosfet的制作方法 | |
CN110400846B (zh) | 具有阶梯深槽屏蔽栅mos结构和制作方法 | |
CN114038751A (zh) | 一种上下结构的屏蔽栅mosfet器件的制作方法 | |
CN105575781B (zh) | 沟槽型超级结的制造方法 | |
CN108831927A (zh) | 超结金属氧化物半导体场效应晶体管及其制造方法 | |
CN107818920B (zh) | 屏蔽栅沟槽mosfet的栅氧层结构及制造方法 | |
CN113053738A (zh) | 一种分裂栅型沟槽mos器件及其制备方法 | |
CN106876449A (zh) | 一种沟槽金属-氧化物半导体及其制备方法 | |
CN115799339A (zh) | 一种屏蔽栅沟槽mosfet结构及其制造方法 | |
CN103855017B (zh) | 形成沟槽型双层栅mos结构两层多晶硅横向隔离的方法 | |
CN106783607A (zh) | 一种沟槽栅igbt器件及其制作方法 | |
CN110429134B (zh) | 一种具有非对称原胞的igbt器件及制备方法 | |
CN101924103A (zh) | 沟槽式功率mosfet及其制造方法 | |
JP2020506547A (ja) | トレンチ分離構造およびその製造方法 | |
CN106920752A (zh) | 低压超结mosfet栅源氧化层结构及制造方法 | |
CN105118857A (zh) | 一种沟槽型功率mosfet的制造方法 | |
CN110223959A (zh) | 深浅沟槽的金属氧化物半导体场效应晶体管及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information |
Address after: 710021 export processing zone, No.1, Fengcheng 12th Road, Xi'an City, Shaanxi Province Applicant after: Longteng Semiconductor Co.,Ltd. Address before: 710021 export processing zone, No.1, Fengcheng 12th Road, Xi'an City, Shaanxi Province Applicant before: LONTEN SEMICONDUCTOR Co.,Ltd. Address after: 710021 export processing zone, No.1, Fengcheng 12th Road, Xi'an City, Shaanxi Province Applicant after: LONTEN SEMICONDUCTOR Co.,Ltd. Address before: 710021 export processing zone, No.1, Fengcheng 12th Road, Xi'an City, Shaanxi Province Applicant before: XI'AN LONTEN RENEWABLE ENERGY TECHNOLOGY Inc. |
|
CB02 | Change of applicant information | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220323 Address after: 710000 export processing zone, No. 1, Fengcheng 12th Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee after: Longteng Semiconductor Co.,Ltd. Patentee after: Xi'an Longxiang Semiconductor Co.,Ltd. Patentee after: Xusi semiconductor (Shanghai) Co.,Ltd. Address before: 710021 export processing zone, No.1, Fengcheng 12th Road, Xi'an City, Shaanxi Province Patentee before: Longteng Semiconductor Co.,Ltd. |
|
TR01 | Transfer of patent right |