JP2016502762A - 縦型電界効果素子の実装を改善するための素子アーキテクチャおよび方法 - Google Patents
縦型電界効果素子の実装を改善するための素子アーキテクチャおよび方法 Download PDFInfo
- Publication number
- JP2016502762A JP2016502762A JP2015544197A JP2015544197A JP2016502762A JP 2016502762 A JP2016502762 A JP 2016502762A JP 2015544197 A JP2015544197 A JP 2015544197A JP 2015544197 A JP2015544197 A JP 2015544197A JP 2016502762 A JP2016502762 A JP 2016502762A
- Authority
- JP
- Japan
- Prior art keywords
- field effect
- trench
- vertical field
- effect element
- region
- 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
- 230000005669 field effect Effects 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims description 22
- 239000004065 semiconductor Substances 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims description 103
- 239000000758 substrate Substances 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 23
- 210000000746 body region Anatomy 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 15
- 239000007772 electrode material Substances 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 4
- 230000000873 masking effect Effects 0.000 claims 3
- 230000001747 exhibiting effect Effects 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052710 silicon Inorganic materials 0.000 abstract description 6
- 239000010703 silicon Substances 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000005284 excitation Effects 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 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
- 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
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
- H01L21/26586—Bombardment with radiation with high-energy radiation producing ion implantation characterised by the angle between the ion beam and the crystal planes or the main crystal surface
-
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
- H01L21/3083—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
-
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/3115—Doping the insulating layers
- H01L21/31155—Doping the insulating layers by ion implantation
-
- 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
- H01L29/045—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes by their 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
- H01L29/02—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]
- H01L29/063—Reduced surface field [RESURF] pn-junction structures
- H01L29/0634—Multiple reduced surface field (multi-RESURF) structures, e.g. double RESURF, charge compensation, cool, superjunction (SJ), 3D-RESURF, composite buffer (CB) structures
-
- 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
- H01L29/0642—Isolation within the component, i.e. internal isolation
- H01L29/0649—Dielectric regions, e.g. SiO2 regions, air gaps
- H01L29/0653—Dielectric regions, e.g. SiO2 regions, air gaps adjoining the input or output region of a field-effect device, e.g. the source or drain region
-
- 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
- H01L29/0692—Surface layout
- H01L29/0696—Surface layout of cellular field-effect devices, e.g. multicellular 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
- H01L29/02—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
- H01L29/40—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
- H01L29/42356—Disposition, e.g. buried gate electrode
- H01L29/4236—Disposition, e.g. buried gate electrode within a trench, e.g. trench gate electrode, groove gate 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
- H01L29/40—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
- H01L29/42372—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
-
- 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
- H01L29/42372—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
- H01L29/4238—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 surface lay-out
-
- 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
- H01L29/66234—Bipolar junction transistors [BJT]
- H01L29/66325—Bipolar junction transistors [BJT] controlled by field-effect, e.g. insulated gate bipolar transistors [IGBT]
- H01L29/66333—Vertical insulated gate bipolar transistors
- H01L29/66348—Vertical insulated gate bipolar transistors with a recessed gate
-
- 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
- H01L29/66666—Vertical 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
- H01L29/66—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
- H01L29/66719—With a step of forming an insulating sidewall spacer
-
- 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
- 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
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
- H01L29/7393—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET
- H01L29/7395—Vertical transistors, e.g. vertical IGBT
- H01L29/7396—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions
- H01L29/7397—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions and a gate structure lying on a slanted or vertical surface or formed in a groove, e.g. trench gate IGBT
-
- 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
- H01L29/7827—Vertical transistors
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- High Energy & Nuclear Physics (AREA)
- Composite Materials (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Recrystallisation Techniques (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (21)
- 縦型電界効果素子であって、
ドレイン電極を有する半導体基板と、
前記半導体基板に隣接し、第1のセットの頂点を有する第1の八角形の幾何学的形状に結合された第1のセットの側壁面を有する電荷補償ゾーンと、
前記第1の八角形の幾何学的形状と、
ゲート電極およびソース電極によって金属被覆された第1の面と、
前記ソース電極および前記第1の面に接するソース領域と、
前記ソース領域および前記電荷補償ゾーンに隣接し、p+ボディー接触領域に接するボディー領域と、
前記電荷補償ゾーンに隣接し、前記ゲート電極に接するゲートゾーンと、
を有し、
前記ソース領域、前記ボディー領域、および前記第1の面は第2の八角形の幾何学的形状に結合された第2のセットの側壁面を有し、
前記第2の八角形の幾何学的形状は第2のセットの頂点を有し、
前記第1のセットの頂点は45度の第1の倍数を有し、
前記第2のセットの頂点は45度の第2の倍数を有するものである
縦型電界効果素子。 - 請求項1に記載の縦型電界効果素子において、前記ソース領域および前記p+ボディー接触領域は、さらに、
第3の八角形の幾何学的形状に結合された第3のセットの側壁面を有し、
前記第3のセットの側壁面は第3のセットの頂点を有し、
前記第3のセットの頂点は45度の第3の倍数を有するものである
縦型電界効果素子。 - 請求項1に記載の縦型電界効果素子において、前記ゲートゾーンは、さらに、
前記電荷補償ゾーンに隣接するゲート酸化物層と、
前記ゲート酸化物層および前記第1の面に隣接するゲート電極材料と
を有するものである縦型電界効果素子。 - 請求項3に記載の縦型電界効果素子において、
前記電荷補償ゾーンは、さらに、nコラム領域とpコラム領域とを有し、
前記ソース領域は、さらに、p型ボディーと、前記p型ボディーに隣接するn+ソース領域とを有し、
前記半導体基板は、さらに、前記第2の面に隣接するn+ドレイン領域を有し、
前記ゲート酸化物層は、前記nコラム領域、前記p型ボディー材料、および前記n+ソース領域に隣接するものである縦型電界効果素子。 - 請求項1に記載の縦型電界効果素子において、前記電荷補償ゾーンは、さらに、
n型エピタキシャル領域と、
前記n型エピタキシャル領域内のトレンチと、
前記トレンチ内のpコラム領域と
を有するものである縦型電界効果素子。 - 請求項1に記載の縦型電界効果素子において、前記電荷補償ゾーンは、さらに
エピタキシャル領域と、
トレンチ側壁面を有する、前記エピタキシャル領域内のトレンチと、
前記トレンチ側壁面に隣接するnコラム領域と、
前記トレンチ内で前記nコラム領域に隣接するpコラム領域と
を有するものである縦型電界効果素子。 - 請求項1に記載の縦型電界効果素子において、前記電荷補償ゾーンは、さらに、
エピタキシャル領域と、
トレンチ側壁面を有する、前記エピタキシャル領域内のトレンチと、
前記トレンチ側壁面に隣接するpコラム領域と
を有するものである縦型電界効果素子。 - 請求項7に記載の縦型電界効果素子において、さらに、
前記トレンチ内で前記pコラム領域および前記ソース領域に隣接する絶縁体コラムを有するものである縦型電界効果素子。 - 請求項1に記載の縦型電界効果素子において、さらに、
六方対称性を呈する素子配置を有するものである縦型電界効果素子。 - 請求項1に記載の縦型電界効果素子において、前記第1のセットの側壁面および前記第2のセットの側壁面の群のうちの選択された側壁面は、前記半導体基板の{110}格子面と共平面である縦型電界効果素子。
- 請求項1に記載の縦型電界効果素子において、前記第1のセットの側壁面および前記第2のセットの側壁面のうちの少なくとも1つの側壁面は、前記半導体基板の{010}格子面と共平面である縦型電界効果素子。
- 請求項1に記載の縦型電界効果素子において、前記第1のセットの側壁面および前記第2のセットの側壁面のうちの少なくとも1つの側壁面は、前記半導体基板の{001}格子面と等価な格子面と共平面である縦型電界効果素子。
- 請求項1に記載の縦型電界効果素子において、さらに、
所定の複合閾値電圧に関連する長さを有する、前記第1のセットの側壁面および前記第2のセットの側壁面の群のうちのから選択された側壁面を有するものである縦型電界効果素子。 - 請求項1に記載の縦型電界効果素子において、さらに、
前記電荷補償ゾーン内の所定の複合レベルの材料応力に関連する長さを有する、前記第1のセットの側壁面および前記第2のセットの側壁面の群のうちから選択された側壁面を有するものである縦型電界効果素子。 - 電界効果素子を製造する方法であって、
第1の{100}格子面上の第1の面と、第2の{100}格子面上の第2の面とを有する半導体基板を提供する工程と、
{001}格子面のセットと同一平面上にある第1のセットの側壁と、{010}格子面のセットと同一平面上にある第2のセットの側壁と、{110}格子面のセットと同一平面上にある第3のセットの側壁とを有する八角形の幾何学的形状を利用した素子配置を提供する工程と、
前記素子配置を有する超接合電界効果素子を構築する工程と
を有する方法。 - 請求項15に記載の方法において、さらに、
前記第1の面上に前記八角形の幾何学的形状を有する電荷補償ゾーンを構築する工程と、
前記電荷補償ゾーンに隣接してボディー領域を構築する工程と、
前記電荷補償ゾーン内に前記八角形の幾何学的形状を有するゲートトレンチをエッチングする工程と、
前記ゲートトレンチ内にゲート酸化層を形成する工程と、
前記ゲートトレンチをゲート電極材料で充填する工程と、
前記ボディー領域内にソース接合領域を構築する工程と、
前記ゲート電極材料にゲート金属被覆層を施す工程と、
前記ソース接合領域にソース金属被覆層を施す工程と、
前記第2の面にドレイン金属被覆層を施す工程と
を有するものである方法。 - 請求項15に記載の方法において、さらに、
所定の複合閾値電圧を規定する工程と、
前記第1のセットの側壁、前記第2のセットの側壁、および前記第3のセットの側壁の群のうちの選択された側壁の長さを調整して前記所定の複合閾値電圧を有する前記超接合電界効果素子を達成する工程と
を有するものである方法。 - 請求項15に記載の方法において、さらに、
前記電荷補償ゾーン内の所定の材料応力を規定する工程と、
前記第1のセットの側壁、前記第2のセットの側壁、および前記第3のセットの側壁の群のうちの選択された側壁の長さを調整して前記所定の材料応力を有する前記超接合電界効果素子を達成する工程と
を有するものである方法。 - 請求項15に記載の方法において、さらに、
前記半導体基板のためのn+基板を選択する工程と、
前記n+基板上に第1のドーピングレベルのn型エピタキシャル層を成長させる工程と、
前記八角形の幾何学的形状のフォトマスクを用いて前記n型エピタキシャル層をマスキングする工程と、
前記n型エピタキシャル層内に前記八角形の幾何学的形状を有するトレンチをエッチングする工程と、
前記トレンチ内に第2のドーピングレベルのp型層を堆積させる工程と、
前記n型エピタキシャル層および前記pコラム層上にp型ボディー層を形成する工程と
を有するものである方法。 - 請求項15に記載の方法において、さらに、
前記半導体基板のためのn+基板を選択する工程と、
前記n+基板上にn型エピタキシャル層を成長させる工程と、
前記八角形の幾何学的形状のフォトマスクを用いて前記n型エピタキシャル層をマスキングする工程と、
前記n型エピタキシャル層内に前記八角形の幾何学的形状を有する1セットのトレンチ側壁を有するトレンチをエッチングする工程と、
前記1セットのトレンチ側壁を第1のドーピングレベルのnコラム層で埋没させる工程と、
前記トレンチを第2のドーピングレベルのpコラム層で再充填する工程と、
前記nコラム層および前記pコラム層上にp型ボディー層を形成する工程と
を有するものである方法。 - 請求項15に記載の方法において、さらに、
前記半導体基板のためのn+基板を選択する工程と、
前記n+基板上に第1のドーピングレベルのn型エピタキシャル層を成長させる工程と、
前記八角形の幾何学的形状のフォトマスクを用いて前記n型エピタキシャル層をマスキングする工程と、
前記n型エピタキシャル層内に前記八角形の幾何学的形状を有する1セットのトレンチ側壁を有するトレンチをエッチングする工程と、
前記1セットのトレンチ側壁を第2のドーピングレベルのpコラム層で埋没させる工程と、
前記トレンチを絶縁材料で再充填する工程と、
前記n型エピタキシャル層および前記pコラム層上にp型ボディー層を形成する工程と
を有するものである。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261729686P | 2012-11-26 | 2012-11-26 | |
US61/729,686 | 2012-11-26 | ||
PCT/US2013/072095 WO2014082095A1 (en) | 2012-11-26 | 2013-11-26 | Device architecture and method for improved packing of vertical field effect devices |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2016502762A true JP2016502762A (ja) | 2016-01-28 |
JP2016502762A5 JP2016502762A5 (ja) | 2017-03-09 |
JP6231122B2 JP6231122B2 (ja) | 2017-11-15 |
Family
ID=50772489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015544197A Expired - Fee Related JP6231122B2 (ja) | 2012-11-26 | 2013-11-26 | 縦型電界効果素子の実装を改善するための素子アーキテクチャおよび方法 |
Country Status (7)
Country | Link |
---|---|
US (3) | US9117899B2 (ja) |
EP (1) | EP2923381A4 (ja) |
JP (1) | JP6231122B2 (ja) |
KR (1) | KR20150088887A (ja) |
CN (1) | CN105103294B (ja) |
MY (1) | MY168468A (ja) |
WO (1) | WO2014082095A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021136414A (ja) * | 2020-02-28 | 2021-09-13 | 株式会社東芝 | 半導体装置 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY168468A (en) * | 2012-11-26 | 2018-11-09 | D3 Semiconductor LLC | Device architecture and method for improved packing of vertical field effect devices |
EP3357084A4 (en) | 2015-10-01 | 2019-06-19 | D3 Semiconductor LLC | SOURCE-GRID ZONE ARCHITECTURE IN A SEMICONDUCTOR DEVICE OF VERTICAL POWER |
US9806186B2 (en) | 2015-10-02 | 2017-10-31 | D3 Semiconductor LLC | Termination region architecture for vertical power transistors |
US10355132B2 (en) * | 2017-03-20 | 2019-07-16 | North Carolina State University | Power MOSFETs with superior high frequency figure-of-merit |
US10615276B2 (en) | 2017-12-22 | 2020-04-07 | International Business Machines Corporation | Integration of input/output device in vertical field-effect transistor technology |
CN108198851B (zh) * | 2017-12-27 | 2020-10-02 | 四川大学 | 一种具有载流子存储效应的超结igbt |
CN108231903B (zh) * | 2018-01-24 | 2020-06-02 | 重庆大学 | 一种带软恢复体二极管的超结功率mosfet |
CN109119459B (zh) * | 2018-08-14 | 2022-03-08 | 上海华虹宏力半导体制造有限公司 | 沟槽型超级结的制造方法 |
US10818756B2 (en) | 2018-11-02 | 2020-10-27 | International Business Machines Corporation | Vertical transport FET having multiple threshold voltages with zero-thickness variation of work function metal |
CN109888004A (zh) * | 2019-01-08 | 2019-06-14 | 上海华虹宏力半导体制造有限公司 | Igbt器件 |
CN110993687B (zh) * | 2019-12-18 | 2021-03-16 | 电子科技大学 | 一种超结逆导型栅控双极型器件 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10270689A (ja) * | 1997-03-28 | 1998-10-09 | Hitachi Ltd | 半導体装置 |
JP2004079955A (ja) * | 2002-08-22 | 2004-03-11 | Denso Corp | 半導体装置及びその製造方法 |
JP2005175416A (ja) * | 2003-11-19 | 2005-06-30 | Fuji Electric Device Technology Co Ltd | 宇宙用半導体装置 |
JP2005317828A (ja) * | 2004-04-30 | 2005-11-10 | Sumitomo Electric Ind Ltd | 高電圧車載電力変換用半導体装置の製造方法と高電圧車載電力変換用半導体装置 |
JP2008300420A (ja) * | 2007-05-29 | 2008-12-11 | Nec Electronics Corp | 半導体装置及び半導体装置の製造方法 |
WO2011013379A1 (en) * | 2009-07-31 | 2011-02-03 | Fuji Electric Systems Co., Ltd. | Semiconductor apparatus |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6248857B1 (en) * | 1998-10-01 | 2001-06-19 | Nitto Denko Corporation | Aromatic polycarbodiimide and polycarbodiimide sheet |
JP3973395B2 (ja) | 2001-10-16 | 2007-09-12 | 株式会社豊田中央研究所 | 半導体装置とその製造方法 |
GB0419558D0 (en) * | 2004-09-03 | 2004-10-06 | Koninkl Philips Electronics Nv | Vertical semiconductor devices and methods of manufacturing such devices |
JP4841829B2 (ja) | 2004-11-17 | 2011-12-21 | ルネサスエレクトロニクス株式会社 | 半導体装置及びその製造方法 |
KR20070015309A (ko) | 2005-07-30 | 2007-02-02 | 페어차일드코리아반도체 주식회사 | 고전압 반도체소자 |
US7554137B2 (en) | 2005-10-25 | 2009-06-30 | Infineon Technologies Austria Ag | Power semiconductor component with charge compensation structure and method for the fabrication thereof |
US8580651B2 (en) * | 2007-04-23 | 2013-11-12 | Icemos Technology Ltd. | Methods for manufacturing a trench type semiconductor device having a thermally sensitive refill material |
CN101689565B (zh) | 2008-05-13 | 2011-06-08 | 松下电器产业株式会社 | 半导体元件 |
JP2011040675A (ja) | 2009-08-18 | 2011-02-24 | Sumitomo Electric Ind Ltd | 半導体装置 |
US8673700B2 (en) * | 2011-04-27 | 2014-03-18 | Fairchild Semiconductor Corporation | Superjunction structures for power devices and methods of manufacture |
KR101930381B1 (ko) * | 2011-04-27 | 2018-12-19 | 페어차일드 세미컨덕터 코포레이션 | 전력 소자들을 위한 슈퍼정션 구조물 및 제조방법들 |
US10032878B2 (en) * | 2011-09-23 | 2018-07-24 | Infineon Technologies Ag | Semiconductor device with a semiconductor via and laterally connected electrode |
US8946814B2 (en) * | 2012-04-05 | 2015-02-03 | Icemos Technology Ltd. | Superjunction devices having narrow surface layout of terminal structures, buried contact regions and trench gates |
MY168468A (en) * | 2012-11-26 | 2018-11-09 | D3 Semiconductor LLC | Device architecture and method for improved packing of vertical field effect devices |
-
2013
- 2013-11-26 MY MYPI2015001366A patent/MY168468A/en unknown
- 2013-11-26 US US14/091,169 patent/US9117899B2/en not_active Expired - Fee Related
- 2013-11-26 JP JP2015544197A patent/JP6231122B2/ja not_active Expired - Fee Related
- 2013-11-26 EP EP13857471.0A patent/EP2923381A4/en not_active Withdrawn
- 2013-11-26 KR KR1020157017254A patent/KR20150088887A/ko not_active Application Discontinuation
- 2013-11-26 CN CN201380071298.9A patent/CN105103294B/zh not_active Expired - Fee Related
- 2013-11-26 WO PCT/US2013/072095 patent/WO2014082095A1/en active Application Filing
-
2015
- 2015-08-03 US US14/817,010 patent/US9496386B2/en not_active Expired - Fee Related
-
2016
- 2016-11-14 US US15/351,088 patent/US9865727B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10270689A (ja) * | 1997-03-28 | 1998-10-09 | Hitachi Ltd | 半導体装置 |
JP2004079955A (ja) * | 2002-08-22 | 2004-03-11 | Denso Corp | 半導体装置及びその製造方法 |
JP2005175416A (ja) * | 2003-11-19 | 2005-06-30 | Fuji Electric Device Technology Co Ltd | 宇宙用半導体装置 |
JP2005317828A (ja) * | 2004-04-30 | 2005-11-10 | Sumitomo Electric Ind Ltd | 高電圧車載電力変換用半導体装置の製造方法と高電圧車載電力変換用半導体装置 |
JP2008300420A (ja) * | 2007-05-29 | 2008-12-11 | Nec Electronics Corp | 半導体装置及び半導体装置の製造方法 |
WO2011013379A1 (en) * | 2009-07-31 | 2011-02-03 | Fuji Electric Systems Co., Ltd. | Semiconductor apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021136414A (ja) * | 2020-02-28 | 2021-09-13 | 株式会社東芝 | 半導体装置 |
Also Published As
Publication number | Publication date |
---|---|
US20170062606A1 (en) | 2017-03-02 |
EP2923381A1 (en) | 2015-09-30 |
CN105103294A (zh) | 2015-11-25 |
JP6231122B2 (ja) | 2017-11-15 |
US9496386B2 (en) | 2016-11-15 |
MY168468A (en) | 2018-11-09 |
CN105103294B (zh) | 2018-06-29 |
US9865727B2 (en) | 2018-01-09 |
US20150340454A1 (en) | 2015-11-26 |
KR20150088887A (ko) | 2015-08-03 |
US9117899B2 (en) | 2015-08-25 |
US20140145245A1 (en) | 2014-05-29 |
EP2923381A4 (en) | 2016-08-17 |
WO2014082095A1 (en) | 2014-05-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6231122B2 (ja) | 縦型電界効果素子の実装を改善するための素子アーキテクチャおよび方法 | |
CN103915499B (zh) | 半导体器件和制造半导体器件的方法 | |
US8829608B2 (en) | Semiconductor device | |
TWI407548B (zh) | 積體有感應電晶體的分立功率金屬氧化物半導體場效應電晶體 | |
CN106463503A (zh) | 半导体装置 | |
US20130087852A1 (en) | Edge termination structure for power semiconductor devices | |
JP2006344759A (ja) | トレンチ型mosfet及びその製造方法 | |
JPH10223896A (ja) | 高耐圧半導体装置およびその製造方法 | |
TW201133830A (en) | Method for making a charge balanced multi-nano shell drift region for superjunction semiconductor device | |
KR101767866B1 (ko) | 반도체 디바이스에서의 단순화된 전하 균형 | |
US20070158726A1 (en) | Semiconductor device and method of manufacturing the same | |
CN104701317A (zh) | 电子器件、用于制造电子器件的方法和用于操作电子器件的方法 | |
JP2005354056A (ja) | ディープ・トレンチ・スーパースイッチング装置 | |
JPS58108775A (ja) | 埋設格子構造の製法 | |
KR101710815B1 (ko) | 반도체 디바이스의 제조 방법 | |
US11158705B2 (en) | Method for forming a superjunction transistor device | |
JP2016192479A (ja) | 半導体装置および半導体装置の製造方法 | |
CN108831927A (zh) | 超结金属氧化物半导体场效应晶体管及其制造方法 | |
CN105977285A (zh) | 半导体器件及其制造方法 | |
JP2009076903A (ja) | パワー半導体デバイス及びその製造方法 | |
US20240088215A1 (en) | Trench mosfet device and manufacturing method therefor | |
WO2023116383A1 (zh) | 带有超结结构的绝缘栅双极型晶体管及其制备方法 | |
CN208489200U (zh) | 超结金属氧化物半导体场效应晶体管 | |
KR20170080510A (ko) | 필드 전극을 갖는 트랜지스터 디바이스 | |
JP2013219163A (ja) | 炭化珪素半導体装置およびその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20161125 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20161125 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20161125 |
|
A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20170303 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170314 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20170607 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170812 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20170926 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20171018 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6231122 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
LAPS | Cancellation because of no payment of annual fees |