JPWO2014065018A1 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
- Publication number
- JPWO2014065018A1 JPWO2014065018A1 JP2014543178A JP2014543178A JPWO2014065018A1 JP WO2014065018 A1 JPWO2014065018 A1 JP WO2014065018A1 JP 2014543178 A JP2014543178 A JP 2014543178A JP 2014543178 A JP2014543178 A JP 2014543178A JP WO2014065018 A1 JPWO2014065018 A1 JP WO2014065018A1
- Authority
- JP
- Japan
- Prior art keywords
- laser
- annealing
- contact
- film
- semiconductor device
- 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
- 239000004065 semiconductor Substances 0.000 title claims abstract description 250
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 117
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 152
- 239000000758 substrate Substances 0.000 claims abstract description 143
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 238000000034 method Methods 0.000 claims abstract description 42
- 238000000137 annealing Methods 0.000 claims description 145
- 230000001678 irradiating effect Effects 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- 230000007935 neutral effect Effects 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 229910002601 GaN Inorganic materials 0.000 claims description 5
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 222
- 229910052759 nickel Inorganic materials 0.000 abstract description 110
- 239000011229 interlayer Substances 0.000 abstract description 28
- 238000005336 cracking Methods 0.000 abstract description 11
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 43
- 238000004151 rapid thermal annealing Methods 0.000 description 24
- 230000006866 deterioration Effects 0.000 description 20
- 239000012535 impurity Substances 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 14
- 238000005224 laser annealing Methods 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 230000015556 catabolic process Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 229910052719 titanium Inorganic materials 0.000 description 6
- 230000003213 activating effect Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 238000012827 research and development Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- HIVGXUNKSAJJDN-UHFFFAOYSA-N [Si].[P] Chemical compound [Si].[P] HIVGXUNKSAJJDN-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 238000007429 general method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 238000000608 laser ablation Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- 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
- H01L21/0445—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 crystalline silicon carbide
- H01L21/048—Making electrodes
- H01L21/0485—Ohmic electrodes
-
- 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
- H01L21/268—Bombardment with radiation with high-energy radiation using electromagnetic radiation, e.g. laser radiation
-
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28568—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table the conductive layers comprising transition metals
-
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28575—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising AIIIBV compounds
-
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
-
- 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
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
-
- 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
- H01L29/66053—Multistep manufacturing processes of devices having a semiconductor body comprising crystalline silicon carbide
- H01L29/66068—Multistep manufacturing processes of devices having a semiconductor body comprising crystalline silicon carbide 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
-
- 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
-
- 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
-
- 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
-
- 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
- H01L21/30—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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- 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
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/16—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table
- H01L29/1608—Silicon carbide
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- High Energy & Nuclear Physics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
まず、実施の形態1にかかる半導体装置の製造方法について、プレーナゲート型MOSFETを製造する場合を例に説明する。図1〜6は、実施の形態1にかかる半導体装置の製造途中の状態を示す断面図である。まず、図1に示すように、n+ドレイン領域となるn+炭化珪素半導体基板(n+SiC基板)1のおもて面に、n-ドリフト領域となるn-SiCエピタキシャル層2を成長させる。以下、n+SiC基板1とn-SiCエピタキシャル層2とからなる半導体基板のn-SiCエピタキシャル層2側の面をおもて面とし、n+SiC基板1側の面を裏面とする。
次に、実施の形態2にかかる半導体装置の製造方法について説明する。図7は、実施の形態2にかかる半導体装置の製造途中の状態を示す断面図である。実施の形態2にかかる半導体装置の製造方法が実施の形態1にかかる半導体装置の製造方法と異なる点は、第1ニッケル膜9a表面から、第1ニッケル膜9aの平面パターン部分(符号22で囲む部分)に第1レーザー21を照射して第1コンタクトアニールを行う点である。
次に、実施の形態3にかかる半導体装置の製造方法について説明する。図8は、実施の形態3にかかる半導体装置の製造途中の状態を模式的に示す断面図である。実施の形態3にかかる半導体装置の製造方法が実施の形態2にかかる半導体装置の製造方法と異なる点は、レンズ34を通して集光された第1レーザー33を、第1ニッケル膜9a表面から照射する点である。図8において第1レーザー33が照射されている領域は、例えば第1ニッケル膜(不図示)である。図8では、基板おもて面側に形成されるMOSゲート構造などのおもて面素子構造を図示省略する。
次に、本発明にかかる半導体装置のVth特性について検証した。図9は、本発明にかかる半導体装置のゲート閾値電圧特性を示す特性図である。まず、実施の形態1にかかる半導体装置の製造方法にしたがい、SiC−MOSFETを作製した(以下、第1実施例とする)。すなわち、第1実施例では、層間絶縁膜8および第1ニッケル膜9aの全面に第1レーザー11照射を行っている。第1,2レーザー11,12照射は、YAG2ωレーザー(波長:532nm)を用いて、パルス幅100nsとした。第1,3ニッケル膜9a,10aの厚さを50nmとし、第2,4ニッケル膜9b,10bの厚さを500nmとした。耐圧を3.3kVとし、n+SiC基板1とn-SiCエピタキシャル層2とからなる半導体基板の厚さを50μmとした。ゲート閾値電圧Vthを+15Vとした。
2 n-SiCエピタキシャル層
3 pベース領域
4 n+ソース領域
5 p+コンタクト領域
6 ゲート絶縁膜
7 ゲート電極
8 層間絶縁膜
8a コンタクトホール
9 ソース電極
9a 第1ニッケル膜
9b 第2ニッケル膜
9c おもて面電極膜
10 ドレイン電極
10a 第3ニッケル膜
10b 第4ニッケル膜
10c 裏面電極膜
11,21,33 第1レーザー
12 第2レーザー
30 半導体基板
34 レンズ
D 第1レーザーのスポット径
D0 第1レーザーの入射スポット径
d 第1レーザーの回折限界
NA レンズの開口数
t レンズの焦点距離
まず、実施の形態1にかかる半導体装置の製造方法について、プレーナゲート型MOSFETを製造する場合を例に説明する。図1〜6は、実施の形態1にかかる半導体装置の製造途中の状態を示す断面図である。まず、図1に示すように、n+ドレイン領域となるn+炭化珪素半導体基板(n+SiC基板)1のおもて面に、n-ドリフト領域となるn-SiCエピタキシャル層2を成長させる。以下、n+SiC基板1とn-SiCエピタキシャル層2とからなる半導体基板のn-SiCエピタキシャル層2側の面をおもて面とし、n+SiC基板1側の面を裏面とする。
次に、実施の形態2にかかる半導体装置の製造方法について説明する。図7は、実施の形態2にかかる半導体装置の製造途中の状態を示す断面図である。実施の形態2にかかる半導体装置の製造方法が実施の形態1にかかる半導体装置の製造方法と異なる点は、第1ニッケル膜9a表面から、第1ニッケル膜9aの平面パターン部分(符号22で囲む部分)に第1レーザー21を照射して第1コンタクトアニールを行う点である。
次に、実施の形態3にかかる半導体装置の製造方法について説明する。図8は、実施の形態3にかかる半導体装置の製造途中の状態を模式的に示す断面図である。実施の形態3にかかる半導体装置の製造方法が実施の形態2にかかる半導体装置の製造方法と異なる点は、レンズ34を通して集光された第1レーザー33を、第1ニッケル膜9a表面から照射する点である。図8において第1レーザー33が照射されている領域は、例えば第1ニッケル膜(不図示)である。図8では、基板おもて面側に形成されるMOSゲート構造などのおもて面素子構造を図示省略する。
次に、本発明にかかる半導体装置のVth特性について検証した。図9は、本発明にかかる半導体装置のゲート閾値電圧特性を示す特性図である。まず、実施の形態1にかかる半導体装置の製造方法にしたがい、SiC−MOSFETを作製した(以下、第1実施例とする)。すなわち、第1実施例では、層間絶縁膜8および第1ニッケル膜9aの全面に第1レーザー11照射を行っている。第1,2レーザー11,12照射は、YAG2ωレーザー(波長:532nm)を用いて、パルス幅100nsとした。第1,3ニッケル膜9a,10aの厚さを50nmとし、第2,4ニッケル膜9b,10bの厚さを500nmとした。耐圧を3.3kVとし、n+SiC基板1とn-SiCエピタキシャル層2とからなる半導体基板の厚さを50μmとした。ゲート閾値電圧Vthを+15Vとした。
2 n-SiCエピタキシャル層
3 pベース領域
4 n+ソース領域
5 p+コンタクト領域
6 ゲート絶縁膜
7 ゲート電極
8 層間絶縁膜
8a コンタクトホール
9 ソース電極
9a 第1ニッケル膜
9b 第2ニッケル膜
9c おもて面電極膜
10 ドレイン電極
10a 第3ニッケル膜
10b 第4ニッケル膜
10c 裏面電極膜
11,21,33 第1レーザー
12 第2レーザー
30 半導体基板
34 レンズ
D 第1レーザーのスポット径
D0 第1レーザーの入射スポット径
d 第1レーザーの回折限界
NA レンズの開口数
t レンズの焦点距離
Claims (7)
- 半導体基板の表面に絶縁膜を形成する絶縁膜形成工程と、
前記絶縁膜を選択的に除去し、前記半導体基板の表面を選択的に露出させる工程と、
前記半導体基板の露出された表面に電極膜を形成する電極膜形成工程と、
前記電極膜の表面から前記電極膜のパターン部分にレーザーを照射して前記電極膜と前記半導体基板との接合部をアニールすることにより、前記電極膜と前記半導体基板とのオーミックコンタクトを形成するアニール工程と、
を含むことを特徴とする半導体装置の製造方法。 - 前記アニール工程では、レンズを通して前記レーザーを集光して、前記レーザーのスポット径を回折限界に近づけた状態で前記レーザーを照射することを特徴とする請求項1に記載の半導体装置の製造方法。
- 前記レーザーのエネルギー密度は、1.6J/cm2〜2.4J/cm2であることを特徴とする請求項1に記載の半導体装置の製造方法。
- 前記絶縁膜および前記電極膜は、前記半導体基板のおもて面に形成され、
前記電極膜形成工程後、前記アニール工程前に、前記半導体基板の裏面を研削して、前記半導体基板の厚さを薄くする薄化工程をさらに含むことを特徴とする請求項1に記載の半導体装置の製造方法。 - レンズを通してレーザーを集光して、前記レーザーのスポット径を回折限界に近づけた状態で半導体基板の所定領域に前記レーザーを照射して前記所定領域をアニールすることを特徴とする半導体装置の製造方法。
- 減光フィルターを通して前記レーザーの光量を調整し、前記レーザーのエネルギー密度を低減させた状態で前記所定領域に前記レーザーを照射することを特徴とする請求項5に記載の半導体装置の製造方法。
- 前記半導体基板は、シリコン、炭化珪素または窒化ガリウムからなることを特徴とする請求項1〜6のいずれか一つに記載の半導体装置の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012234232 | 2012-10-23 | ||
JP2012234232 | 2012-10-23 | ||
PCT/JP2013/073900 WO2014065018A1 (ja) | 2012-10-23 | 2013-09-05 | 半導体装置の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2014065018A1 true JPWO2014065018A1 (ja) | 2016-09-08 |
JP6164220B2 JP6164220B2 (ja) | 2017-07-19 |
Family
ID=50544399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014543178A Active JP6164220B2 (ja) | 2012-10-23 | 2013-09-05 | 半導体装置の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9892919B2 (ja) |
EP (1) | EP2913843A4 (ja) |
JP (1) | JP6164220B2 (ja) |
CN (1) | CN104718604B (ja) |
WO (1) | WO2014065018A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6323252B2 (ja) * | 2014-08-20 | 2018-05-16 | 住友電気工業株式会社 | 炭化珪素半導体装置の製造方法 |
CN105244266B (zh) * | 2015-10-26 | 2017-12-08 | 株洲南车时代电气股份有限公司 | 一种SiC晶圆的欧姆接触形成方法 |
WO2017098659A1 (ja) * | 2015-12-11 | 2017-06-15 | 新電元工業株式会社 | 炭化珪素半導体装置の製造方法、半導体基体の製造方法、炭化珪素半導体装置及び炭化珪素半導体装置の製造装置 |
CN107785258B (zh) * | 2016-08-31 | 2020-08-28 | 株洲中车时代电气股份有限公司 | 一种4H-SiC P型绝缘栅双极型晶体管的制备方法 |
DE112017005206T5 (de) * | 2016-10-13 | 2019-07-04 | Mitsubishi Electric Corporation | Verfahren zur herstellung einer halbleitereinheit |
JP2019057682A (ja) * | 2017-09-22 | 2019-04-11 | ルネサスエレクトロニクス株式会社 | 半導体装置の製造方法 |
CN109103186B (zh) * | 2018-08-14 | 2022-10-11 | 电子科技大学 | 一种集成异质结续流二极管碳化硅槽栅mosfet |
WO2020049835A1 (ja) * | 2018-09-07 | 2020-03-12 | 住友重機械工業株式会社 | 半導体製造方法及び半導体製造装置 |
US11018023B2 (en) * | 2018-11-21 | 2021-05-25 | Semiconductor Components Industries, Llc | Defect reduction of semiconductor layers and semiconductor devices by anneal and related methods |
RU188684U1 (ru) * | 2019-01-10 | 2019-04-22 | Закрытое акционерное общество "ГРУППА КРЕМНИЙ ЭЛ" | Силовое полупроводниковое устройство на основе карбида кремния |
CN111599670A (zh) * | 2019-02-20 | 2020-08-28 | 创能动力科技有限公司 | 晶片加工方法及半导体装置 |
CN109904065B (zh) * | 2019-02-21 | 2021-05-11 | 中国科学院上海微系统与信息技术研究所 | 异质结构的制备方法 |
CN112216603A (zh) * | 2019-07-10 | 2021-01-12 | 创能动力科技有限公司 | 用于晶片的激光处理方法及半导体装置 |
DE102021108756A1 (de) * | 2021-04-08 | 2022-10-13 | Osram Opto Semiconductors Gmbh | Verfahren zum testen eines wafers und wafer |
Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10284436A (ja) * | 1997-04-11 | 1998-10-23 | Matsushita Electric Ind Co Ltd | オーミック電極形成方法 |
JP2000150875A (ja) * | 1998-11-13 | 2000-05-30 | Toshiba Corp | 半導体装置及び薄膜形成方法 |
JP2001144015A (ja) * | 1999-08-18 | 2001-05-25 | Semiconductor Energy Lab Co Ltd | レーザー装置及びレーザーアニール方法 |
JP2002026341A (ja) * | 2000-06-30 | 2002-01-25 | Toshiba Corp | 半導体装置及びその製造方法 |
JP2005243797A (ja) * | 2004-02-25 | 2005-09-08 | Harison Toshiba Lighting Corp | 光エネルギー照射装置 |
JP2006156926A (ja) * | 2004-08-19 | 2006-06-15 | Fuji Electric Holdings Co Ltd | 半導体装置およびその製造方法 |
JP2008211177A (ja) * | 2007-02-27 | 2008-09-11 | Wafermasters Inc | 選択的深さでの光学的処理 |
JP2009283754A (ja) * | 2008-05-23 | 2009-12-03 | Denso Corp | 半導体装置の製造方法 |
JP2010186991A (ja) * | 2009-01-16 | 2010-08-26 | Showa Denko Kk | 半導体素子の製造方法及び半導体素子、並びに半導体装置 |
JP2011159654A (ja) * | 2010-01-29 | 2011-08-18 | Fuji Electric Co Ltd | 逆導通形絶縁ゲート型バイポーラトランジスタ |
JP2011171551A (ja) * | 2010-02-19 | 2011-09-01 | Toyota Motor Corp | 半導体装置の製造方法 |
WO2011111029A1 (fr) * | 2010-03-12 | 2011-09-15 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Procede de traitement d'un contact metallique realise sur un substrat |
JP2011187753A (ja) * | 2010-03-10 | 2011-09-22 | Toshiba Corp | 半導体装置の製造方法 |
JP2012004185A (ja) * | 2010-06-14 | 2012-01-05 | Denso Corp | 炭化珪素半導体装置の製造方法 |
JP2012099598A (ja) * | 2010-11-01 | 2012-05-24 | Sumitomo Electric Ind Ltd | 半導体装置およびその製造方法 |
JP2012099599A (ja) * | 2010-11-01 | 2012-05-24 | Sumitomo Electric Ind Ltd | 半導体装置およびその製造方法 |
JP2012114480A (ja) * | 2003-08-14 | 2012-06-14 | Cree Inc | 金属−炭化珪素オーミックコンタクトの局所的アニーリングおよびそのようにして形成された素子 |
JP2012156390A (ja) * | 2011-01-27 | 2012-08-16 | Sumitomo Heavy Ind Ltd | レーザアニール方法及びレーザアニール装置 |
JP2012178603A (ja) * | 2005-09-16 | 2012-09-13 | Cree Inc | 炭化ケイ素パワーデバイスを有する半導体ウェハを処理する方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1131548C (zh) * | 1997-04-04 | 2003-12-17 | 松下电器产业株式会社 | 半导体装置 |
TW494444B (en) | 1999-08-18 | 2002-07-11 | Semiconductor Energy Lab | Laser apparatus and laser annealing method |
CN100483631C (zh) * | 2003-08-14 | 2009-04-29 | 克里公司 | 金属-碳化硅欧姆接触的局部退火及其形成的装置 |
WO2007072837A1 (en) * | 2005-12-20 | 2007-06-28 | Semiconductor Energy Laboratory Co., Ltd. | Laser irradiation apparatus and method for manufacturing semiconductor device |
TWI320606B (en) * | 2006-08-07 | 2010-02-11 | Epistar Corp | A method for making a light emitting diode by electroless plating |
JP5309454B2 (ja) * | 2006-10-11 | 2013-10-09 | 富士通セミコンダクター株式会社 | 半導体装置の製造方法 |
US8039405B2 (en) * | 2008-02-01 | 2011-10-18 | Ricoh Company, Ltd. | Conductive oxide-deposited substrate and method for producing the same, and MIS laminated structure and method for producing the same |
WO2011043162A1 (en) * | 2009-10-09 | 2011-04-14 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the semiconductor device |
JP5728954B2 (ja) * | 2011-01-13 | 2015-06-03 | 住友電気工業株式会社 | 炭化珪素半導体装置の製造方法 |
-
2013
- 2013-09-05 WO PCT/JP2013/073900 patent/WO2014065018A1/ja active Application Filing
- 2013-09-05 JP JP2014543178A patent/JP6164220B2/ja active Active
- 2013-09-05 EP EP13848850.7A patent/EP2913843A4/en not_active Withdrawn
- 2013-09-05 CN CN201380052480.XA patent/CN104718604B/zh active Active
-
2015
- 2015-04-09 US US14/682,692 patent/US9892919B2/en active Active
Patent Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10284436A (ja) * | 1997-04-11 | 1998-10-23 | Matsushita Electric Ind Co Ltd | オーミック電極形成方法 |
JP2000150875A (ja) * | 1998-11-13 | 2000-05-30 | Toshiba Corp | 半導体装置及び薄膜形成方法 |
JP2001144015A (ja) * | 1999-08-18 | 2001-05-25 | Semiconductor Energy Lab Co Ltd | レーザー装置及びレーザーアニール方法 |
JP2002026341A (ja) * | 2000-06-30 | 2002-01-25 | Toshiba Corp | 半導体装置及びその製造方法 |
JP2012114480A (ja) * | 2003-08-14 | 2012-06-14 | Cree Inc | 金属−炭化珪素オーミックコンタクトの局所的アニーリングおよびそのようにして形成された素子 |
JP2005243797A (ja) * | 2004-02-25 | 2005-09-08 | Harison Toshiba Lighting Corp | 光エネルギー照射装置 |
JP2006156926A (ja) * | 2004-08-19 | 2006-06-15 | Fuji Electric Holdings Co Ltd | 半導体装置およびその製造方法 |
JP2012178603A (ja) * | 2005-09-16 | 2012-09-13 | Cree Inc | 炭化ケイ素パワーデバイスを有する半導体ウェハを処理する方法 |
JP2008211177A (ja) * | 2007-02-27 | 2008-09-11 | Wafermasters Inc | 選択的深さでの光学的処理 |
JP2009283754A (ja) * | 2008-05-23 | 2009-12-03 | Denso Corp | 半導体装置の製造方法 |
JP2010186991A (ja) * | 2009-01-16 | 2010-08-26 | Showa Denko Kk | 半導体素子の製造方法及び半導体素子、並びに半導体装置 |
JP2011159654A (ja) * | 2010-01-29 | 2011-08-18 | Fuji Electric Co Ltd | 逆導通形絶縁ゲート型バイポーラトランジスタ |
JP2011171551A (ja) * | 2010-02-19 | 2011-09-01 | Toyota Motor Corp | 半導体装置の製造方法 |
JP2011187753A (ja) * | 2010-03-10 | 2011-09-22 | Toshiba Corp | 半導体装置の製造方法 |
WO2011111029A1 (fr) * | 2010-03-12 | 2011-09-15 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Procede de traitement d'un contact metallique realise sur un substrat |
JP2012004185A (ja) * | 2010-06-14 | 2012-01-05 | Denso Corp | 炭化珪素半導体装置の製造方法 |
JP2012099598A (ja) * | 2010-11-01 | 2012-05-24 | Sumitomo Electric Ind Ltd | 半導体装置およびその製造方法 |
JP2012099599A (ja) * | 2010-11-01 | 2012-05-24 | Sumitomo Electric Ind Ltd | 半導体装置およびその製造方法 |
JP2012156390A (ja) * | 2011-01-27 | 2012-08-16 | Sumitomo Heavy Ind Ltd | レーザアニール方法及びレーザアニール装置 |
Also Published As
Publication number | Publication date |
---|---|
JP6164220B2 (ja) | 2017-07-19 |
WO2014065018A1 (ja) | 2014-05-01 |
US9892919B2 (en) | 2018-02-13 |
EP2913843A4 (en) | 2016-06-29 |
CN104718604A (zh) | 2015-06-17 |
EP2913843A1 (en) | 2015-09-02 |
US20150214053A1 (en) | 2015-07-30 |
CN104718604B (zh) | 2017-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6164220B2 (ja) | 半導体装置の製造方法 | |
JP4924690B2 (ja) | 炭化珪素半導体装置の製造方法 | |
JP4788390B2 (ja) | 半導体装置の製造方法 | |
WO2017187760A1 (ja) | 炭化珪素半導体装置およびその製造方法 | |
US8440524B2 (en) | Semiconductor device manufacturing method | |
JP5369762B2 (ja) | 炭化珪素半導体装置の製造方法 | |
KR101913387B1 (ko) | Ⅲ족 질화물 이종 접합 구조 소자의 선택적 저온 오믹 콘택 형성 방법 | |
JP6053968B2 (ja) | 炭化珪素半導体装置およびその製造方法 | |
WO2012060223A1 (ja) | 半導体装置およびその製造方法 | |
TW201426828A (zh) | 半導體裝置之製造方法 | |
US10665680B2 (en) | Method and assembly for ohmic contact in thinned silicon carbide devices | |
JP2011040729A (ja) | 半導体基板の作製方法および半導体装置 | |
JP2012146716A (ja) | 半導体装置の製造方法 | |
JP6425457B2 (ja) | 半導体素子の製造方法 | |
JP6091703B2 (ja) | 炭化珪素半導体装置の製造方法及び炭化珪素半導体装置 | |
JP5201305B2 (ja) | 半導体装置の製造方法 | |
JP2019057682A (ja) | 半導体装置の製造方法 | |
JP7155759B2 (ja) | 半導体装置及び半導体装置の製造方法 | |
JP6686581B2 (ja) | 炭化珪素半導体素子および炭化珪素半導体素子の製造方法 | |
JP2004335815A (ja) | 炭化珪素ショットキーバリアダイオードの製造方法 | |
JP6870286B2 (ja) | 炭化珪素半導体装置の製造方法 | |
JP4087368B2 (ja) | SiC半導体装置の製造方法 | |
JP5349735B2 (ja) | 複層構造のゲート電極を有する薄膜トランジスタ及びその製造方法 | |
JP2018049927A (ja) | 炭化珪素半導体装置およびその製造方法 | |
JP2019096848A (ja) | 半導体装置およびその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20160705 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160905 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170307 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170508 |
|
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: 20170523 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20170605 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6164220 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |