CN106328690A - 具有深槽和t‑poly结构的沟槽型mos肖特基整流器及制造方法 - Google Patents
具有深槽和t‑poly结构的沟槽型mos肖特基整流器及制造方法 Download PDFInfo
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- CN106328690A CN106328690A CN201610801864.2A CN201610801864A CN106328690A CN 106328690 A CN106328690 A CN 106328690A CN 201610801864 A CN201610801864 A CN 201610801864A CN 106328690 A CN106328690 A CN 106328690A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 13
- 230000004888 barrier function Effects 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 239000002019 doping agent Substances 0.000 claims description 5
- 238000001312 dry etching Methods 0.000 claims description 4
- 230000005684 electric field Effects 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- IYYIVELXUANFED-UHFFFAOYSA-N bromo(trimethyl)silane Chemical compound C[Si](C)(C)Br IYYIVELXUANFED-UHFFFAOYSA-N 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
- H01L29/861—Diodes
- H01L29/872—Schottky diodes
- H01L29/8725—Schottky diodes of the trench MOS barrier type [TMBS]
-
- 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
- H01L29/0603—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
- H01L29/0607—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
- H01L29/0611—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
- 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]
- H01L29/0619—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] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
-
- 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
- H01L29/0684—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 the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
-
- 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66083—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by variation of the electric current supplied or the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. two-terminal devices
- H01L29/6609—Diodes
- H01L29/66143—Schottky diodes
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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 (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610801864.2A CN106328690A (zh) | 2016-09-05 | 2016-09-05 | 具有深槽和t‑poly结构的沟槽型mos肖特基整流器及制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610801864.2A CN106328690A (zh) | 2016-09-05 | 2016-09-05 | 具有深槽和t‑poly结构的沟槽型mos肖特基整流器及制造方法 |
Publications (1)
Publication Number | Publication Date |
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CN106328690A true CN106328690A (zh) | 2017-01-11 |
Family
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Family Applications (1)
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CN201610801864.2A Pending CN106328690A (zh) | 2016-09-05 | 2016-09-05 | 具有深槽和t‑poly结构的沟槽型mos肖特基整流器及制造方法 |
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CN (1) | CN106328690A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109755325A (zh) * | 2017-11-01 | 2019-05-14 | 北京大学 | 一种新型双槽型金属氧化物半导体势垒肖特基二极管结构及实现方法 |
CN111341852A (zh) * | 2020-03-10 | 2020-06-26 | 安徽安芯电子科技股份有限公司 | 一种具有屏蔽氧化物的沟槽型肖特基整流器及其加工工艺 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6191447B1 (en) * | 1999-05-28 | 2001-02-20 | Micro-Ohm Corporation | Power semiconductor devices that utilize tapered trench-based insulating regions to improve electric field profiles in highly doped drift region mesas and methods of forming same |
EP1168455A2 (en) * | 2000-06-30 | 2002-01-02 | Kabushiki Kaisha Toshiba | Power semiconductor switching element |
CN101057340A (zh) * | 2004-11-08 | 2007-10-17 | 罗伯特·博世有限公司 | 半导体装置及用于其制造的方法 |
CN105810755A (zh) * | 2016-03-16 | 2016-07-27 | 杭州立昂微电子股份有限公司 | 一种沟槽栅结构半导体整流器及其制造方法 |
CN105870207A (zh) * | 2016-06-20 | 2016-08-17 | 淄博汉林半导体有限公司 | 一种厚底氧化层的沟槽式肖特基芯片及制作方法 |
-
2016
- 2016-09-05 CN CN201610801864.2A patent/CN106328690A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6191447B1 (en) * | 1999-05-28 | 2001-02-20 | Micro-Ohm Corporation | Power semiconductor devices that utilize tapered trench-based insulating regions to improve electric field profiles in highly doped drift region mesas and methods of forming same |
EP1168455A2 (en) * | 2000-06-30 | 2002-01-02 | Kabushiki Kaisha Toshiba | Power semiconductor switching element |
CN101057340A (zh) * | 2004-11-08 | 2007-10-17 | 罗伯特·博世有限公司 | 半导体装置及用于其制造的方法 |
CN105810755A (zh) * | 2016-03-16 | 2016-07-27 | 杭州立昂微电子股份有限公司 | 一种沟槽栅结构半导体整流器及其制造方法 |
CN105870207A (zh) * | 2016-06-20 | 2016-08-17 | 淄博汉林半导体有限公司 | 一种厚底氧化层的沟槽式肖特基芯片及制作方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109755325A (zh) * | 2017-11-01 | 2019-05-14 | 北京大学 | 一种新型双槽型金属氧化物半导体势垒肖特基二极管结构及实现方法 |
CN111341852A (zh) * | 2020-03-10 | 2020-06-26 | 安徽安芯电子科技股份有限公司 | 一种具有屏蔽氧化物的沟槽型肖特基整流器及其加工工艺 |
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Address after: The North Industrial Zone Road in Jimei District of Xiamen City, Fujian Province, No. 501 361021 Applicant after: Xiamen lucky Microelectronics Co., Ltd. Applicant after: Xiamen unit is along microelectric technique company limited Applicant after: UNISONIC TECHNOLOGIES Co.,Ltd. Address before: 361021 Xiamen Industrial Zone, Jimei, Xiamen, Fujian Applicant before: Xiamen Jicheng Semiconductor Manufacturing Co., Ltd. Applicant before: Xiamen unit is along microelectric technique company limited Applicant before: UNISONIC TECHNOLOGIES Co.,Ltd. |
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Application publication date: 20170111 |
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