CN101645457A - 超自对准沟槽型双扩散金属氧化物半导体晶体管结构及其制造方法 - Google Patents
超自对准沟槽型双扩散金属氧化物半导体晶体管结构及其制造方法 Download PDFInfo
- Publication number
- CN101645457A CN101645457A CN200910149277A CN200910149277A CN101645457A CN 101645457 A CN101645457 A CN 101645457A CN 200910149277 A CN200910149277 A CN 200910149277A CN 200910149277 A CN200910149277 A CN 200910149277A CN 101645457 A CN101645457 A CN 101645457A
- Authority
- CN
- China
- Prior art keywords
- layer
- type
- tagma
- gate electrode
- polysilicon
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 73
- 239000004065 semiconductor Substances 0.000 claims abstract description 98
- 239000012212 insulator Substances 0.000 claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 claims abstract description 25
- 239000002019 doping agent Substances 0.000 claims abstract description 9
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 128
- 229920005591 polysilicon Polymers 0.000 claims description 116
- 238000005192 partition Methods 0.000 claims description 99
- 150000004767 nitrides Chemical class 0.000 claims description 56
- 229910045601 alloy Inorganic materials 0.000 claims description 42
- 239000000956 alloy Substances 0.000 claims description 42
- 238000005530 etching Methods 0.000 claims description 38
- 238000009413 insulation Methods 0.000 claims description 32
- 229910052751 metal Inorganic materials 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 31
- 238000009792 diffusion process Methods 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 24
- 238000000151 deposition Methods 0.000 claims description 21
- 238000000059 patterning Methods 0.000 claims description 19
- 230000008021 deposition Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 17
- 238000007254 oxidation reaction Methods 0.000 claims description 14
- 230000003647 oxidation Effects 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000000137 annealing Methods 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 2
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims 3
- 125000006850 spacer group Chemical group 0.000 abstract description 3
- 238000001020 plasma etching Methods 0.000 description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000000758 substrate Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 238000007669 thermal treatment Methods 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 5
- 238000002513 implantation Methods 0.000 description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- -1 boron ion Chemical class 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- RLOWWWKZYUNIDI-UHFFFAOYSA-N phosphinic chloride Chemical compound ClP=O RLOWWWKZYUNIDI-UHFFFAOYSA-N 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000001259 photo etching Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H01L29/02—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
- H01L29/0856—Source regions
- H01L29/0865—Disposition
-
- 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
- H01L29/0856—Source regions
- H01L29/0869—Shape
-
- 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
- H01L29/10—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 not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/1095—Body region, i.e. base region, of DMOS transistors or IGBTs
-
- 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
- H01L29/66227—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
- H01L29/66727—Vertical DMOS transistors, i.e. VDMOS transistors with a step of recessing the source electrode
-
- 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
- H01L29/66227—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/22—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities
- H01L21/225—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities using diffusion into or out of a solid from or into a solid phase, e.g. a doped oxide layer
- H01L21/2251—Diffusion into or out of group IV semiconductors
- H01L21/2254—Diffusion into or out of group IV semiconductors from or through or into an applied layer, e.g. photoresist, nitrides
- H01L21/2257—Diffusion into or out of group IV semiconductors from or through or into an applied layer, e.g. photoresist, nitrides the applied layer being silicon or silicide or SIPOS, e.g. polysilicon, porous silicon
-
- 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
- H01L29/04—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
-
- 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
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- 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
-
- 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
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/45—Ohmic electrodes
- H01L29/456—Ohmic electrodes on silicon
Landscapes
- 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)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (24)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/189,062 | 2008-08-08 | ||
US12/189,062 US7867852B2 (en) | 2008-08-08 | 2008-08-08 | Super-self-aligned trench-dmos structure and method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101645457A true CN101645457A (zh) | 2010-02-10 |
CN101645457B CN101645457B (zh) | 2012-01-25 |
Family
ID=41652094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200910149277XA Active CN101645457B (zh) | 2008-08-08 | 2009-06-04 | 超自对准沟槽型双扩散金属氧化物半导体晶体管结构及其制造方法 |
Country Status (3)
Country | Link |
---|---|
US (3) | US7867852B2 (zh) |
CN (1) | CN101645457B (zh) |
TW (1) | TWI381527B (zh) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102005379A (zh) * | 2010-10-25 | 2011-04-06 | 上海宏力半导体制造有限公司 | 提高沟槽栅顶角栅氧可靠性的方法 |
CN103871892A (zh) * | 2012-12-13 | 2014-06-18 | 茂达电子股份有限公司 | 凹入式晶体管的制作方法 |
CN104037082A (zh) * | 2013-03-04 | 2014-09-10 | 上海华虹宏力半导体制造有限公司 | 用于沟槽功率绝缘栅场效应晶体管的自对准工艺方法 |
CN104064470A (zh) * | 2013-03-19 | 2014-09-24 | 株式会社东芝 | 半导体装置及其制造方法 |
CN104282645A (zh) * | 2013-07-08 | 2015-01-14 | 茂达电子股份有限公司 | 沟渠式功率半导体器件及其制作方法 |
CN104733377A (zh) * | 2013-12-24 | 2015-06-24 | 上海华虹宏力半导体制造有限公司 | 实现沟槽场效应晶体管源极接触槽自对准结构的方法 |
CN105074886A (zh) * | 2013-03-08 | 2015-11-18 | 住友电气工业株式会社 | 碳化硅半导体器件及其制造方法 |
CN109103253A (zh) * | 2017-06-21 | 2018-12-28 | 比亚迪股份有限公司 | Mos型功率器件及其制备方法 |
CN109309121A (zh) * | 2017-07-26 | 2019-02-05 | 比亚迪股份有限公司 | 半导体功率器件及其制备方法 |
CN110416211A (zh) * | 2019-07-24 | 2019-11-05 | 上海朕芯微电子科技有限公司 | 一种超自对准功率Trench MOSFET制作方法及结构 |
CN110957227A (zh) * | 2019-12-27 | 2020-04-03 | 深圳市威兆半导体有限公司 | 一种mosfet器件的制造方法及mosfet器件 |
CN112103187A (zh) * | 2020-09-22 | 2020-12-18 | 深圳市芯电元科技有限公司 | 一种提高沟槽mosfet元胞密度的工艺方法及沟槽mosfet结构 |
CN113644028A (zh) * | 2021-08-11 | 2021-11-12 | 重庆万国半导体科技有限公司 | 一种分离栅功率器件及其制造方法 |
CN114093768A (zh) * | 2022-01-20 | 2022-02-25 | 威海银创微电子技术有限公司 | Trench VDMOS中Gate的保护方法、装置、电子设备及介质 |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7867852B2 (en) | 2008-08-08 | 2011-01-11 | Alpha And Omega Semiconductor Incorporated | Super-self-aligned trench-dmos structure and method |
CN102034708B (zh) * | 2009-09-27 | 2012-07-04 | 无锡华润上华半导体有限公司 | 沟槽型dmos晶体管的制作方法 |
US8138605B2 (en) * | 2009-10-26 | 2012-03-20 | Alpha & Omega Semiconductor, Inc. | Multiple layer barrier metal for device component formed in contact trench |
US8431470B2 (en) | 2011-04-04 | 2013-04-30 | Alpha And Omega Semiconductor Incorporated | Approach to integrate Schottky in MOSFET |
JP5729331B2 (ja) * | 2011-04-12 | 2015-06-03 | 株式会社デンソー | 半導体装置の製造方法及び半導体装置 |
US8502302B2 (en) | 2011-05-02 | 2013-08-06 | Alpha And Omega Semiconductor Incorporated | Integrating Schottky diode into power MOSFET |
US8507978B2 (en) | 2011-06-16 | 2013-08-13 | Alpha And Omega Semiconductor Incorporated | Split-gate structure in trench-based silicon carbide power device |
KR101250649B1 (ko) * | 2011-12-26 | 2013-04-03 | 삼성전기주식회사 | 반도체 소자 및 이의 제조 방법 |
US8785278B2 (en) * | 2012-02-02 | 2014-07-22 | Alpha And Omega Semiconductor Incorporated | Nano MOSFET with trench bottom oxide shielded and third dimensional P-body contact |
US9639853B2 (en) | 2012-06-11 | 2017-05-02 | Retailmenot, Inc. | Devices, methods, and computer-readable media for redemption header for merchant offers |
KR101920247B1 (ko) | 2012-09-17 | 2018-11-20 | 삼성전자 주식회사 | 반도체 장치 및 그 제조 방법 |
CN104299907A (zh) * | 2013-07-19 | 2015-01-21 | 北大方正集团有限公司 | Vdmos器件的制作方法 |
CN105405763B (zh) * | 2014-07-08 | 2018-12-28 | 北大方正集团有限公司 | 沟槽型超结功率器件的制造方法 |
US9691863B2 (en) | 2015-04-08 | 2017-06-27 | Alpha And Omega Semiconductor Incorporated | Self-aligned contact for trench power MOSFET |
CN105633168A (zh) * | 2015-12-31 | 2016-06-01 | 国网智能电网研究院 | 一种集成肖特基二极管的SiC沟槽型MOSFET器件及其制造方法 |
CN109641128B (zh) * | 2016-07-18 | 2024-02-09 | 柯泰克股份有限公司 | 弹性神经电极及其制造方法 |
CN110462803B (zh) * | 2017-03-31 | 2023-11-07 | 株式会社半导体能源研究所 | 半导体装置及半导体装置的制造方法 |
US10685872B2 (en) * | 2018-05-30 | 2020-06-16 | International Business Machines Corporation | Electrically isolated contacts in an active region of a semiconductor device |
CN110581071B (zh) * | 2019-08-20 | 2022-07-19 | 深圳市锐骏半导体股份有限公司 | 一种降低沟槽型dmos生产成本的方法 |
KR20210126214A (ko) * | 2020-04-10 | 2021-10-20 | 에스케이하이닉스 주식회사 | 반도체 장치 제조방법 |
DE102020115157A1 (de) | 2020-06-08 | 2021-12-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Verfahren zur Herstellung eines Trench-MOSFET |
US11776994B2 (en) | 2021-02-16 | 2023-10-03 | Alpha And Omega Semiconductor International Lp | SiC MOSFET with reduced channel length and high Vth |
CN113675086A (zh) * | 2021-08-10 | 2021-11-19 | 青岛佳恩半导体有限公司 | 一种空穴阻挡载流子存储层的制造方法及其igbt器件 |
CN113990933B (zh) * | 2021-10-28 | 2023-05-26 | 电子科技大学 | 一种半导体纵向器件及制备方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9306895D0 (en) * | 1993-04-01 | 1993-05-26 | Philips Electronics Uk Ltd | A method of manufacturing a semiconductor device comprising an insulated gate field effect device |
JP2590758B2 (ja) * | 1994-10-31 | 1997-03-12 | 日本電気株式会社 | バスドライバ |
US5567634A (en) * | 1995-05-01 | 1996-10-22 | National Semiconductor Corporation | Method of fabricating self-aligned contact trench DMOS transistors |
US5684319A (en) * | 1995-08-24 | 1997-11-04 | National Semiconductor Corporation | Self-aligned source and body contact structure for high performance DMOS transistors and method of fabricating same |
US6413822B2 (en) * | 1999-04-22 | 2002-07-02 | Advanced Analogic Technologies, Inc. | Super-self-aligned fabrication process of trench-gate DMOS with overlying device layer |
US7405452B2 (en) * | 2004-02-02 | 2008-07-29 | Hamza Yilmaz | Semiconductor device containing dielectrically isolated PN junction for enhanced breakdown characteristics |
US7667264B2 (en) * | 2004-09-27 | 2010-02-23 | Alpha And Omega Semiconductor Limited | Shallow source MOSFET |
JP4361880B2 (ja) * | 2005-01-11 | 2009-11-11 | 富士通マイクロエレクトロニクス株式会社 | 半導体集積回路装置の製造方法 |
US7867852B2 (en) * | 2008-08-08 | 2011-01-11 | Alpha And Omega Semiconductor Incorporated | Super-self-aligned trench-dmos structure and method |
-
2008
- 2008-08-08 US US12/189,062 patent/US7867852B2/en active Active
-
2009
- 2009-06-04 CN CN200910149277XA patent/CN101645457B/zh active Active
- 2009-06-05 TW TW098118749A patent/TWI381527B/zh not_active IP Right Cessation
-
2010
- 2010-12-01 US US12/958,162 patent/US8330200B2/en not_active Expired - Fee Related
-
2012
- 2012-12-10 US US13/709,614 patent/US8785280B2/en active Active
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102005379A (zh) * | 2010-10-25 | 2011-04-06 | 上海宏力半导体制造有限公司 | 提高沟槽栅顶角栅氧可靠性的方法 |
CN102005379B (zh) * | 2010-10-25 | 2015-08-19 | 上海华虹宏力半导体制造有限公司 | 提高沟槽栅顶角栅氧可靠性的方法 |
CN103871892A (zh) * | 2012-12-13 | 2014-06-18 | 茂达电子股份有限公司 | 凹入式晶体管的制作方法 |
CN103871892B (zh) * | 2012-12-13 | 2016-11-02 | 茂达电子股份有限公司 | 凹入式晶体管的制作方法 |
CN104037082A (zh) * | 2013-03-04 | 2014-09-10 | 上海华虹宏力半导体制造有限公司 | 用于沟槽功率绝缘栅场效应晶体管的自对准工艺方法 |
CN105074886A (zh) * | 2013-03-08 | 2015-11-18 | 住友电气工业株式会社 | 碳化硅半导体器件及其制造方法 |
CN104064470B (zh) * | 2013-03-19 | 2018-01-05 | 株式会社东芝 | 半导体装置及其制造方法 |
CN104064470A (zh) * | 2013-03-19 | 2014-09-24 | 株式会社东芝 | 半导体装置及其制造方法 |
CN104282645A (zh) * | 2013-07-08 | 2015-01-14 | 茂达电子股份有限公司 | 沟渠式功率半导体器件及其制作方法 |
CN104733377A (zh) * | 2013-12-24 | 2015-06-24 | 上海华虹宏力半导体制造有限公司 | 实现沟槽场效应晶体管源极接触槽自对准结构的方法 |
CN104733377B (zh) * | 2013-12-24 | 2017-10-24 | 上海华虹宏力半导体制造有限公司 | 实现沟槽场效应晶体管源极接触槽自对准结构的方法 |
CN109103253A (zh) * | 2017-06-21 | 2018-12-28 | 比亚迪股份有限公司 | Mos型功率器件及其制备方法 |
CN109103253B (zh) * | 2017-06-21 | 2022-05-20 | 比亚迪半导体股份有限公司 | Mos型功率器件及其制备方法 |
CN109309121A (zh) * | 2017-07-26 | 2019-02-05 | 比亚迪股份有限公司 | 半导体功率器件及其制备方法 |
CN109309121B (zh) * | 2017-07-26 | 2022-09-16 | 比亚迪半导体股份有限公司 | 半导体功率器件及其制备方法 |
CN110416211A (zh) * | 2019-07-24 | 2019-11-05 | 上海朕芯微电子科技有限公司 | 一种超自对准功率Trench MOSFET制作方法及结构 |
CN110957227A (zh) * | 2019-12-27 | 2020-04-03 | 深圳市威兆半导体有限公司 | 一种mosfet器件的制造方法及mosfet器件 |
CN112103187A (zh) * | 2020-09-22 | 2020-12-18 | 深圳市芯电元科技有限公司 | 一种提高沟槽mosfet元胞密度的工艺方法及沟槽mosfet结构 |
CN112103187B (zh) * | 2020-09-22 | 2021-12-07 | 深圳市芯电元科技有限公司 | 一种提高沟槽mosfet元胞密度的工艺方法及沟槽mosfet结构 |
CN113644028A (zh) * | 2021-08-11 | 2021-11-12 | 重庆万国半导体科技有限公司 | 一种分离栅功率器件及其制造方法 |
CN113644028B (zh) * | 2021-08-11 | 2023-10-03 | 重庆万国半导体科技有限公司 | 一种分离栅功率器件及其制造方法 |
CN114093768A (zh) * | 2022-01-20 | 2022-02-25 | 威海银创微电子技术有限公司 | Trench VDMOS中Gate的保护方法、装置、电子设备及介质 |
Also Published As
Publication number | Publication date |
---|---|
US20140004671A1 (en) | 2014-01-02 |
US20100032751A1 (en) | 2010-02-11 |
TWI381527B (zh) | 2013-01-01 |
US7867852B2 (en) | 2011-01-11 |
TW201007945A (en) | 2010-02-16 |
US20110068395A1 (en) | 2011-03-24 |
US8330200B2 (en) | 2012-12-11 |
US8785280B2 (en) | 2014-07-22 |
CN101645457B (zh) | 2012-01-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101645457B (zh) | 超自对准沟槽型双扩散金属氧化物半导体晶体管结构及其制造方法 | |
CN100583449C (zh) | 半导体器件及其制造方法 | |
US6586800B2 (en) | Trench-gate semiconductor devices | |
US7075145B2 (en) | Poly-sealed silicide trench gate | |
KR100295631B1 (ko) | 마스크수가감소된모스게이트소자의제조방법 | |
US7851349B2 (en) | Method for producing a connection electrode for two semiconductor zones arranged one above another | |
JP3117426B2 (ja) | 自己整合セルを有するmosゲート型デバイスおよびその製造方法 | |
CN101425539B (zh) | 高迁移率沟槽金属氧化物半导体场效应晶体管 | |
US7217976B2 (en) | Low temperature process and structures for polycide power MOSFET with ultra-shallow source | |
US6277695B1 (en) | Method of forming vertical planar DMOSFET with self-aligned contact | |
EP3651202B1 (en) | Semiconductor device with superjunction and oxygen inserted si-layers | |
TW201140703A (en) | Shielded gate trench MOS with improved source pickup layout | |
CN101043053B (zh) | 具有改善性能的功率半导体器件和方法 | |
CN101425466B (zh) | 半导体部件及其制造方法 | |
KR20000076870A (ko) | 고밀도 모스-게이트 파워 디바이스 및 이를 성형하는 공정 | |
WO2004061975A1 (en) | Trench mis device having implanted drain-drift region and thick bottom oxide and process for manufacturing the same | |
CN1333468C (zh) | 具有深植入结的功率mosfet | |
TW201340326A (zh) | 用於在溝槽功率mosfets中優化端接設計的不對稱多晶矽柵極的製備方法 | |
CN102097378A (zh) | 一种沟槽金属氧化物半导体场效应管的制造方法 | |
TW201340327A (zh) | 頂部汲極橫向擴散金屬氧化物半導體、半導體功率元件及其製備方法 | |
CN108428743A (zh) | 金属/多晶硅栅极沟槽功率mosfet及其形成方法 | |
KR100272051B1 (ko) | 접점윈도우를통해베이스주입한p-채널mos게이트소자제조공정 | |
KR100948663B1 (ko) | 복수의 트렌치 mosfet 셀들을 포함하는 디바이스를 형성하는 방법, 및 얕은 및 깊은 도펀트 주입물 형성 방법 | |
CN101989577B (zh) | 一种沟槽mosfet的制造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20160930 Address after: 400700 Chongqing city Beibei district and high tech Industrial Park the road No. 5 of 407 Patentee after: Chongqing Wanguo Semiconductor Technology Co.,Ltd. Address before: Bermuda Hamilton church 22 Cola Lunden House Street Patentee before: ALPHA & OMEGA SEMICONDUCTOR, Ltd. |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Super-self-aligned trench-dmos structure and method Effective date of registration: 20191210 Granted publication date: 20120125 Pledgee: Chongqing Branch of China Development Bank Pledgor: Chongqing Wanguo Semiconductor Technology Co.,Ltd. Registration number: Y2019500000007 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20120125 Pledgee: Chongqing Branch of China Development Bank Pledgor: Chongqing Wanguo Semiconductor Technology Co.,Ltd. Registration number: Y2019500000007 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right |