KR101057651B1 - 반도체 소자의 제조방법 - Google Patents
반도체 소자의 제조방법 Download PDFInfo
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- KR101057651B1 KR101057651B1 KR1020080116725A KR20080116725A KR101057651B1 KR 101057651 B1 KR101057651 B1 KR 101057651B1 KR 1020080116725 A KR1020080116725 A KR 1020080116725A KR 20080116725 A KR20080116725 A KR 20080116725A KR 101057651 B1 KR101057651 B1 KR 101057651B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 238000005530 etching Methods 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 239000011810 insulating material Substances 0.000 claims abstract description 8
- 230000001590 oxidative effect Effects 0.000 claims abstract description 4
- 238000000151 deposition Methods 0.000 claims abstract description 3
- -1 ISO nitride Chemical class 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 8
- 229920002120 photoresistant polymer Polymers 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000007517 polishing process Methods 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims 1
- 238000001039 wet etching Methods 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 210000000746 body region Anatomy 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—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
- H01L29/66568—Lateral single gate silicon transistors
- H01L29/66659—Lateral single gate silicon transistors with asymmetry in the channel direction, e.g. lateral high-voltage MISFETs with drain offset region, extended drain MISFETs
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—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
- H01L29/66681—Lateral DMOS transistors, i.e. LDMOS transistors
- H01L29/66689—Lateral DMOS transistors, i.e. LDMOS transistors with a step of forming an insulating sidewall spacer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—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
- H01L29/7816—Lateral DMOS transistors, i.e. LDMOS transistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—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
- H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
- H01L29/7835—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's with asymmetrical source and drain regions, e.g. lateral high-voltage MISFETs with drain offset region, extended drain MISFETs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—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
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- 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
- H01L29/086—Impurity concentration or distribution
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- 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
- H01L29/0873—Drain regions
- H01L29/0878—Impurity concentration or distribution
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- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Element Separation (AREA)
Abstract
Description
Claims (9)
- 삭제
- 삭제
- 삭제
- 반도체 기판에 불순물을 주입하여 웰 영역을 구비하는 단계;상기 웰 영역의 상부 일측에 불순물을 주입하여 드리프트 영역을 형성하는 단계;상기 드리프트 영역 일부를 산화시켜 산화막을 형성하는 단계;상기 산화막을 제거하는 단계;상기 드리프트 영역의 양측에 트렌치를 형성하는 단계;상기 반도체 기판 상에 절연물질을 증착하는 단계; 및상기 반도체 기판 상의 절연물질을 식각하여 상기 트렌치 내에 소자 분리막을 형성하고, 상기 산화막이 제거된 영역 내에 옥사이드 영역을 형성하는 단계;를 포함함을 특징으로 하는 반도체 소자의 제조방법.
- 제 4 항에 있어서,상기 반도체 기판 상에 ISO 질화막 및 포토레지스트막을 마스크로 하여 상기 드리프트 영역에 LOCOS를 형성하는 공정과 동일한 공정으로 상기 산화막을 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 5 항에 있어서,상기 절연물질을 식각하는 단계는상기 ISO 질화막의 상부까지는 화학 기계적 연마 공정으로 식각함을 특징으로 하는 반도체 소자의 제조방법.
- 제 5 항에 있어서,상기 절연 물질을 식각하는 단계는상기 ISO 질화막의 하부까지는 습식 식각으로 식각함을 특징으로 하는 반도체 소자의 제조방법.
- 제 4 항에 있어서,상기 산화막은HF 가스, 증기 및 N2 가스를 이용하여 제거함을 특징으로 하는 반도체 소자의 제조방법.
- 제 4 항에 있어서,상기 옥사이드 영역은상기 소자 분리막보다 두께가 얇고, 상기 소자 분리막의 하부보다 하부의 모양이 둥글게 형성됨을 특징으로 하는 반도체 소자의 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080116725A KR101057651B1 (ko) | 2008-11-24 | 2008-11-24 | 반도체 소자의 제조방법 |
US12/623,803 US8022483B2 (en) | 2008-11-24 | 2009-11-23 | Semiconductor and manufacturing method for the same |
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KR1020080116725A KR101057651B1 (ko) | 2008-11-24 | 2008-11-24 | 반도체 소자의 제조방법 |
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KR20100058055A KR20100058055A (ko) | 2010-06-03 |
KR101057651B1 true KR101057651B1 (ko) | 2011-08-18 |
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KR1020080116725A KR101057651B1 (ko) | 2008-11-24 | 2008-11-24 | 반도체 소자의 제조방법 |
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US (1) | US8022483B2 (ko) |
KR (1) | KR101057651B1 (ko) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101531884B1 (ko) * | 2009-01-06 | 2015-06-26 | 주식회사 동부하이텍 | 수평형 디모스 트랜지스터 |
US20110169079A1 (en) * | 2010-01-14 | 2011-07-14 | Broadcom Corporation | Semiconductor device having an overlapping multi-well implant and method for fabricating same |
JP5492610B2 (ja) * | 2010-03-11 | 2014-05-14 | パナソニック株式会社 | 半導体装置及びその製造方法 |
KR101867953B1 (ko) * | 2011-12-22 | 2018-06-18 | 삼성전자주식회사 | 반도체 소자 및 반도체 소자의 형성 방법 |
US8853783B2 (en) * | 2012-01-19 | 2014-10-07 | Globalfoundries Singapore Pte. Ltd. | ESD protection circuit |
KR101899556B1 (ko) | 2012-02-03 | 2018-10-04 | 에스케이하이닉스 시스템아이씨 주식회사 | Bcdmos 소자 및 그 제조방법 |
US9064894B2 (en) * | 2012-08-08 | 2015-06-23 | Globalfoundries Singapore Pte. Ltd. | Stress enhanced high voltage device |
DE102014204494B4 (de) | 2013-03-14 | 2023-09-07 | Globalfoundries Singapore Pte. Ltd. | Vorrichtung mit ESD-Schutzschaltung |
CN104377242A (zh) * | 2013-08-12 | 2015-02-25 | 上海华虹宏力半导体制造有限公司 | Ldmos器件及其制造方法 |
CN103413818B (zh) * | 2013-08-30 | 2015-11-11 | 格科微电子(上海)有限公司 | 图像传感器及其制作方法 |
CN104638001B (zh) * | 2013-11-12 | 2017-10-27 | 上海华虹宏力半导体制造有限公司 | 射频ldmos器件及工艺方法 |
CN104659092A (zh) * | 2013-11-21 | 2015-05-27 | 联华电子股份有限公司 | 半导体结构 |
JP6383325B2 (ja) * | 2014-06-27 | 2018-08-29 | 株式会社東芝 | 半導体装置 |
CN111354644A (zh) * | 2020-04-10 | 2020-06-30 | 上海华虹宏力半导体制造有限公司 | Ldmos器件及其制造方法 |
CN111668299B (zh) * | 2020-07-24 | 2024-02-09 | 上海华虹宏力半导体制造有限公司 | Ldmos器件的制造方法 |
CN112447854B (zh) * | 2020-11-27 | 2023-03-07 | 华虹半导体(无锡)有限公司 | Esd器件和包含其的集成电路 |
CN114429983A (zh) * | 2022-04-01 | 2022-05-03 | 北京芯可鉴科技有限公司 | 高压横向双扩散金属氧化物半导体场效应管及其制作方法 |
Citations (1)
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KR100607794B1 (ko) | 2003-12-31 | 2006-08-02 | 동부일렉트로닉스 주식회사 | 횡형 디모스 소자 |
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CN1591800A (zh) * | 2003-09-01 | 2005-03-09 | 上海宏力半导体制造有限公司 | 改善高压元件结构的制造方法 |
KR100859486B1 (ko) * | 2006-09-18 | 2008-09-24 | 동부일렉트로닉스 주식회사 | 고전압용 정전기 방전 보호 소자 및 그 제조 방법 |
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KR100607794B1 (ko) | 2003-12-31 | 2006-08-02 | 동부일렉트로닉스 주식회사 | 횡형 디모스 소자 |
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US8022483B2 (en) | 2011-09-20 |
US20100127321A1 (en) | 2010-05-27 |
KR20100058055A (ko) | 2010-06-03 |
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