EP3662504A1 - Semiconductor wafer made of monocrystalline silicon and method for producing the semiconductor wafer - Google Patents
Semiconductor wafer made of monocrystalline silicon and method for producing the semiconductor waferInfo
- Publication number
- EP3662504A1 EP3662504A1 EP18743014.5A EP18743014A EP3662504A1 EP 3662504 A1 EP3662504 A1 EP 3662504A1 EP 18743014 A EP18743014 A EP 18743014A EP 3662504 A1 EP3662504 A1 EP 3662504A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- less
- semiconductor wafer
- single crystal
- epitaxially coated
- μιτι
- 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.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 51
- 229910021421 monocrystalline silicon Inorganic materials 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000001301 oxygen Substances 0.000 claims abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 16
- 201000006935 Becker muscular dystrophy Diseases 0.000 claims abstract 5
- 208000037663 Best vitelliform macular dystrophy Diseases 0.000 claims abstract 5
- 208000020938 vitelliform macular dystrophy 2 Diseases 0.000 claims abstract 5
- 239000013078 crystal Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 239000000155 melt Substances 0.000 claims description 12
- 238000000151 deposition Methods 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052796 boron Inorganic materials 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 4
- 229910021419 crystalline silicon Inorganic materials 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 description 64
- 230000007547 defect Effects 0.000 description 6
- 238000001020 plasma etching Methods 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- 244000052616 bacterial pathogen Species 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 3
- 239000005052 trichlorosilane Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/20—Controlling or regulating
- C30B15/206—Controlling or regulating the thermal history of growing the ingot
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/18—Epitaxial-layer growth characterised by the substrate
- C30B25/20—Epitaxial-layer growth characterised by the substrate the substrate being of the same materials as the epitaxial layer
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
- C30B29/06—Silicon
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/02373—Group 14 semiconducting materials
- H01L21/02381—Silicon, silicon germanium, germanium
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/02428—Structure
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02524—Group 14 semiconducting materials
- H01L21/02532—Silicon, silicon germanium, germanium
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/0257—Doping during depositing
- H01L21/02573—Conductivity type
- H01L21/02579—P-type
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02587—Structure
- H01L21/0259—Microstructure
- H01L21/02598—Microstructure monocrystalline
-
- 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
- H01L21/322—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to modify their internal properties, e.g. to produce internal imperfections
- H01L21/3221—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to modify their internal properties, e.g. to produce internal imperfections of silicon bodies, e.g. for gettering
- H01L21/3225—Thermally inducing defects using oxygen present in the silicon body for intrinsic gettering
-
- 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
-
- 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
- H01L29/30—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by physical imperfections; having polished or roughened surface
- H01L29/32—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by physical imperfections; having polished or roughened surface the imperfections being within the semiconductor body
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the substrate wafer is separated from a single crystal, which is pulled by the Czochralski method (CZ method).
- CZ method involves pulling the single crystal from a melt contained in a crucible.
- the substrate wafer is typically mechanically machined, etched and polished before the epitaxial layer is deposited on a polished upper side surface of the substrate wafer by chemical vapor deposition (CVD).
- CVD chemical vapor deposition
- a p / p + epitaxially coated semiconductor wafer is particularly suitable as a base material for the production of solid-state image sensors.
- the high dopant concentration in the substrate wafer facilitates the formation of oxygen precipitates, which are required to bind to metallic impurities and keep away from the epitaxial layer as so-called internal getter.
- Substrate disc before depositing the epitaxial layer to refrain.
- the object of the invention is achieved by an epitaxially coated
- the substrate disk contains an amount of boron sufficient to withstand the
- the residence time is preferably not less than 105 minutes and not more than 157 minutes.
- the method described in DE 10 2014 221 421 B3 has important differences.
- the melt is doped with a larger amount of boron so that the resistivity of the single crystal is not less than 5 nm and not more than 10 mm, preferably not less than 6 m ⁇ cm and less than 10 m ⁇ cm. Furthermore, care is taken when cooling the monocrystal that the
- the melt is preferably applied with a magnetic field.
- the magnetic field is preferably a horizontal magnetic field. It is omitted, the melt with carbon or with nitrogen or with
- the drawn monocrystal are processed into substrate disks of monocrystalline silicon and the substrate disks are further processed into epitaxially coated semiconductor disks.
- the working steps preferably comprise the mechanical processing of a substrate wafer, for example the lapping and / or the grinding of the side surfaces of the substrate
- a monocrystal of single crystal silicon was drawn by the CZ method at a pulling rate of 0.57 mm / min.
- a water-cooled condenser was used to cool the monocrystal.
- the melt was doped with boron only and exposed to a horizontal magnetic field.
- the density of BMDs increases even at a comparatively small distance from the front side to a maximum of slightly less than 1 ⁇ 10 11 / cm 3 , and then falls within a comparatively short distance to values in the range of 5 ⁇ 10 9 / cm 3 .
- a monocrystal of single crystal silicon was drawn by the CZ method at a pulling rate of 0.57 mm / min. Details on length of stay (dt), with which the monocrystal was cooled in certain temperature intervals, the following table can be found.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017213587.5A DE102017213587A1 (en) | 2017-08-04 | 2017-08-04 | Single crystal silicon wafer and method for producing the semiconductor wafer |
PCT/EP2018/069584 WO2019025197A1 (en) | 2017-08-04 | 2018-07-19 | Semiconductor wafer made of monocrystalline silicon and method for producing the semiconductor wafer |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3662504A1 true EP3662504A1 (en) | 2020-06-10 |
Family
ID=62976069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18743014.5A Pending EP3662504A1 (en) | 2017-08-04 | 2018-07-19 | Semiconductor wafer made of monocrystalline silicon and method for producing the semiconductor wafer |
Country Status (10)
Country | Link |
---|---|
US (2) | US11417733B2 (en) |
EP (1) | EP3662504A1 (en) |
JP (1) | JP7098717B2 (en) |
KR (1) | KR102318313B1 (en) |
CN (1) | CN110998789B (en) |
DE (1) | DE102017213587A1 (en) |
IL (1) | IL271983B2 (en) |
SG (1) | SG11202000957SA (en) |
TW (1) | TWI665342B (en) |
WO (1) | WO2019025197A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017213587A1 (en) * | 2017-08-04 | 2019-02-07 | Siltronic Ag | Single crystal silicon wafer and method for producing the semiconductor wafer |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW331017B (en) | 1996-02-15 | 1998-05-01 | Toshiba Co Ltd | Manufacturing and checking method of semiconductor substrate |
TW505709B (en) * | 1998-05-22 | 2002-10-11 | Shinetsu Handotai Kk | A method for producing an epitaxial silicon single crystal wafer and the epitaxial silicon single crystal wafer |
JP3601340B2 (en) | 1999-02-01 | 2004-12-15 | 信越半導体株式会社 | Epitaxial silicon wafer, method for manufacturing the same, and substrate for epitaxial silicon wafer |
JP2003124219A (en) * | 2001-10-10 | 2003-04-25 | Sumitomo Mitsubishi Silicon Corp | Silicon wafer and epitaxial silicon wafer |
KR20070032336A (en) * | 2004-07-22 | 2007-03-21 | 신에쯔 한도타이 가부시키가이샤 | Silicon epitaxial wafer and process for producing the same |
JP4711167B2 (en) * | 2004-08-25 | 2011-06-29 | 信越半導体株式会社 | Manufacturing method of silicon epitaxial wafer |
DE102005013831B4 (en) * | 2005-03-24 | 2008-10-16 | Siltronic Ag | Silicon wafer and method for the thermal treatment of a silicon wafer |
SG142208A1 (en) * | 2006-10-18 | 2008-05-28 | Siltronic Ag | Process for producing p»-doped and epitaxially coated semiconductor wafers from silicon |
JP4853237B2 (en) * | 2006-11-06 | 2012-01-11 | 株式会社Sumco | Epitaxial wafer manufacturing method |
JP5276863B2 (en) * | 2008-03-21 | 2013-08-28 | グローバルウェーハズ・ジャパン株式会社 | Silicon wafer |
KR101184380B1 (en) * | 2008-08-28 | 2012-09-20 | 매그나칩 반도체 유한회사 | Method of manufacturing an epitaxial wafer and the epitaxial wafer applying the same and semiconductor device |
DE102008046617B4 (en) * | 2008-09-10 | 2016-02-04 | Siltronic Ag | Single crystal silicon wafer and process for its production |
JP2011253978A (en) | 2010-06-03 | 2011-12-15 | Sumco Corp | Epitaxial substrate and its manufacturing method |
TWI614808B (en) * | 2012-11-19 | 2018-02-11 | 太陽愛迪生公司 | Process for the production of high precipitate density wafers by activation of inactive oxygen precipitate nuclei |
JP6020342B2 (en) * | 2013-05-10 | 2016-11-02 | 信越半導体株式会社 | Silicon epitaxial wafer and method for manufacturing silicon epitaxial wafer |
DE102014221421B3 (en) | 2014-10-22 | 2015-12-24 | Siltronic Ag | Process for producing an epitaxial semiconductor wafer of monocrystalline silicon |
DE102015200890A1 (en) * | 2015-01-21 | 2016-07-21 | Siltronic Ag | Epitaxially coated semiconductor wafer and process for producing an epitaxially coated semiconductor wafer |
DE102015226399A1 (en) * | 2015-12-22 | 2017-06-22 | Siltronic Ag | Silicon wafer with homogeneous radial oxygen variation |
DE102017213587A1 (en) * | 2017-08-04 | 2019-02-07 | Siltronic Ag | Single crystal silicon wafer and method for producing the semiconductor wafer |
-
2017
- 2017-08-04 DE DE102017213587.5A patent/DE102017213587A1/en active Pending
-
2018
- 2018-07-19 CN CN201880050755.9A patent/CN110998789B/en active Active
- 2018-07-19 SG SG11202000957SA patent/SG11202000957SA/en unknown
- 2018-07-19 EP EP18743014.5A patent/EP3662504A1/en active Pending
- 2018-07-19 US US16/636,352 patent/US11417733B2/en active Active
- 2018-07-19 WO PCT/EP2018/069584 patent/WO2019025197A1/en unknown
- 2018-07-19 KR KR1020207004022A patent/KR102318313B1/en active IP Right Grant
- 2018-07-19 JP JP2020505772A patent/JP7098717B2/en active Active
- 2018-07-19 IL IL271983A patent/IL271983B2/en unknown
- 2018-07-25 TW TW107125727A patent/TWI665342B/en active
-
2022
- 2022-06-08 US US17/835,241 patent/US11621330B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20220328636A1 (en) | 2022-10-13 |
KR20200028439A (en) | 2020-03-16 |
KR102318313B1 (en) | 2021-10-29 |
IL271983A (en) | 2020-02-27 |
IL271983B2 (en) | 2023-04-01 |
US11621330B2 (en) | 2023-04-04 |
US20200168712A1 (en) | 2020-05-28 |
TW201910567A (en) | 2019-03-16 |
JP2020529958A (en) | 2020-10-15 |
WO2019025197A1 (en) | 2019-02-07 |
DE102017213587A1 (en) | 2019-02-07 |
CN110998789B (en) | 2023-07-07 |
JP7098717B2 (en) | 2022-07-11 |
CN110998789A (en) | 2020-04-10 |
US11417733B2 (en) | 2022-08-16 |
TWI665342B (en) | 2019-07-11 |
IL271983B (en) | 2022-12-01 |
SG11202000957SA (en) | 2020-03-30 |
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