EP3710613A1 - Verfahren zum herstellen einer bodenplatte für ein elektronikmodul - Google Patents
Verfahren zum herstellen einer bodenplatte für ein elektronikmodulInfo
- Publication number
- EP3710613A1 EP3710613A1 EP18789391.2A EP18789391A EP3710613A1 EP 3710613 A1 EP3710613 A1 EP 3710613A1 EP 18789391 A EP18789391 A EP 18789391A EP 3710613 A1 EP3710613 A1 EP 3710613A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- plate
- deposited
- solderable
- pvd
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 45
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000012790 adhesive layer Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 8
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 8
- 229910000510 noble metal Inorganic materials 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims 1
- 238000005240 physical vapour deposition Methods 0.000 description 9
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 238000005554 pickling Methods 0.000 description 4
- 229910003465 moissanite Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910000962 AlSiC Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- -1 Silver or gold Chemical compound 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/021—Cleaning or etching treatments
- C23C14/022—Cleaning or etching treatments by means of bombardment with energetic particles or radiation
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating
- C23C14/025—Metallic sublayers
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
- C23C14/042—Coating on selected surface areas, e.g. using masks using masks
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/18—Metallic material, boron or silicon on other inorganic substrates
Definitions
- the invention relates to a method for producing a base plate for an electronic module.
- the pickling step is laborious, but necessary, because electrodeposited nickel layers adhere poorly to silicon carbide or other non-metallic components of the composite.
- the most complete possible extraction of non-metallic grains on the surface of the composite material requires relatively long exposure times of aggressive pickling media.
- a good adhesion of the nickel layer is thus accompanied by increasingly longer and more expensive preparation steps.
- Another problem is that the nickel layer can deposit hydrogen during the electrodeposition process which results in pores and uneven film formation as well as voids in later soldering.
- the object of the present invention is to show a way in which the quality of the coatings can be increased and costs can be saved in the production of a base plate for an electronic module.
- a plate is made of a composite material, which is a metallic component based on aluminum and a non-metallic component contains, coated by physical vapor deposition (PVD).
- PVD physical vapor deposition
- the process speed can thus be increased, which allows cost savings, and the problem of hydrogen storage in the nickel layer can be avoided.
- a deposited with PVD nickel layer is therefore good solderable, so that a layer based on copper or a precious metal is no longer mandatory.
- the solderable layer according to the invention may thus be a nickel layer or a layer based on copper or a noble metal. This layer based on copper or a noble metal can be deposited on a nickel layer, on an adhesive layer or directly on the plate.
- the coating can be easily limited to the areas where a coating is actually needed by using masks. Surprisingly, it is possible to achieve a uniform, closed layer by using PVD even at much thinner layer thicknesses than when using wet-chemical and galvanic coating processes.
- the sum of all deposited on the plate layers therefore preferably has a thickness of only 5 pm or less, for example, 3 ⁇ or less, in particular 0.5 pm to 1, 5 pm. Thinner layers enable faster production and thus further cost savings.
- an adhesive layer for example based on titanium, tungsten, molybdenum and / or chromium, is deposited on the plate by means of PVD, before the solderable layer is deposited.
- the solderable layer can be deposited directly onto the adhesive layer or onto an intermediate layer, for example based on nickel, arranged between the adhesive layer and the solderable layer.
- the adhesion of the layer or layers can thus be improved.
- Layers based on titanium, tungsten, molybdenum and / or chromium adhere to aluminum as well as to non-metallic components of the plate, such as SiC or carbon, in particular graphite.
- the invention also relates to an electronic module with a bottom plate, which is produced by the method according to the invention, and an electronic component soldered onto the cover layer of the carrier plate.
- the component may, for example, contain a transistor, in particular an IGBT (insulated-gate bipolar transistor).
- the plate may be made of a particle composite material comprising an aluminum-based metallic component and a non-metallic component, e.g. based on SiC or carbon (such as graphite, graphene or carbon nanotubes) contains, are first pretreated wet-chemically.
- a non-metallic component e.g. based on SiC or carbon (such as graphite, graphene or carbon nanotubes) contains
- SiC or carbon such as graphite, graphene or carbon nanotubes
- PVD is then used to deposit an adhesion layer based on titanium, tungsten, molybdenum or chromium. Thereafter, a nickel-based interlayer is deposited on the adhesive layer by PVD, and then a PVD-based overcoat layer is deposited on the base of copper or a noble metal, e.g. Silver or gold, isolated.
- a noble metal e.g. Silver or gold
- the adhesive layer preferably has a thickness of less than 1 ⁇ , for example, from 0.05 ⁇ to 0.5 ⁇ , in particular 0.05 ⁇ to 0.2 pm.
- the intermediate layer should be thicker than the adhesive layer.
- the intermediate layer preferably has a thickness of 2 ⁇ m or less, for example 0.5 ⁇ m to 1.5 ⁇ m.
- the cover layer preferably has a thickness of less than 1 ⁇ m, for example from 0.05 ⁇ m to 0.5 ⁇ m.
- the composite material of the plate may be, for example, AlSiC, in particular AISiC-9.
- AISiC-9 contains 37 vol.% Al and 63 vol.% SiC.
- AIC in particular AIC with graphite content of less than 30% by weight of carbon.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Physical Vapour Deposition (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017126590.2A DE102017126590A1 (de) | 2017-11-13 | 2017-11-13 | Verfahren zum Herstellen einer Bodenplatte für ein Elektronikmodul |
PCT/EP2018/078424 WO2019091734A1 (de) | 2017-11-13 | 2018-10-17 | Verfahren zum herstellen einer bodenplatte für ein elektronikmodul |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3710613A1 true EP3710613A1 (de) | 2020-09-23 |
Family
ID=63915039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18789391.2A Withdrawn EP3710613A1 (de) | 2017-11-13 | 2018-10-17 | Verfahren zum herstellen einer bodenplatte für ein elektronikmodul |
Country Status (9)
Country | Link |
---|---|
US (1) | US20200270738A1 (de) |
EP (1) | EP3710613A1 (de) |
JP (1) | JP7185689B2 (de) |
KR (1) | KR20200087131A (de) |
CN (1) | CN111344430B (de) |
CA (1) | CA3080428A1 (de) |
DE (1) | DE102017126590A1 (de) |
IL (1) | IL274056A (de) |
WO (1) | WO2019091734A1 (de) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2750436A1 (de) * | 1977-11-11 | 1979-05-17 | Degussa | Verfahren zur herstellung hartloetfaehiger metallschichten auf keramik |
FR2585730B1 (fr) * | 1985-08-01 | 1987-10-09 | Centre Nat Rech Scient | Procede de depot de metaux en couche mince sur un substrat non metallique, avec depot intermediaire d'hydrures par pulverisation cathodique reactive |
US4964962A (en) * | 1988-10-08 | 1990-10-23 | Matsushita Electric Works, Ltd. | Method for forming conducting metal layer on inorganic substrate |
JPH0796702B2 (ja) * | 1988-10-08 | 1995-10-18 | 松下電工株式会社 | 無機質基板のメタライゼーションの方法 |
JPH09104969A (ja) * | 1995-08-09 | 1997-04-22 | Matsushita Electric Ind Co Ltd | 導体膜およびその形成方法 |
DE10235277B4 (de) * | 2002-08-02 | 2005-12-29 | Leonhardy Gmbh | Verfahren zur Befestigung von nicht lötbaren Komponenten auf elektronischen Leiterplatten |
EP1524336A1 (de) * | 2003-10-18 | 2005-04-20 | Aluminal Oberflächtentechnik GmbH & Co. KG | Mit einer Aluminium-/Magnesium-Legierung beschichtete Werkstücke |
JP2006083442A (ja) * | 2004-09-17 | 2006-03-30 | Seiko Epson Corp | 成膜方法、電子デバイス、及び電子機器 |
KR100807948B1 (ko) * | 2007-02-28 | 2008-02-28 | 삼성전자주식회사 | 저저항 금속 배선 형성방법, 금속 배선 구조 및 이를이용하는 표시장치 |
JP2009129983A (ja) * | 2007-11-20 | 2009-06-11 | Toyota Central R&D Labs Inc | 接合体及びその製造方法、並びにパワー半導体モジュール及びその製造方法 |
EP2197253A1 (de) * | 2008-12-12 | 2010-06-16 | Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO | Verfahren zur Stromkreisabscheidung |
JP5526632B2 (ja) * | 2009-07-14 | 2014-06-18 | 三菱マテリアル株式会社 | 絶縁基板、絶縁回路基板、半導体装置、絶縁基板の製造方法及び絶縁回路基板の製造方法 |
KR101074550B1 (ko) * | 2009-12-29 | 2011-10-17 | 엘에스산전 주식회사 | 파워 모듈 및 그의 제조 방법 |
-
2017
- 2017-11-13 DE DE102017126590.2A patent/DE102017126590A1/de not_active Ceased
-
2018
- 2018-10-17 CN CN201880073334.8A patent/CN111344430B/zh not_active Expired - Fee Related
- 2018-10-17 KR KR1020207011813A patent/KR20200087131A/ko unknown
- 2018-10-17 JP JP2020524047A patent/JP7185689B2/ja active Active
- 2018-10-17 CA CA3080428A patent/CA3080428A1/en not_active Abandoned
- 2018-10-17 EP EP18789391.2A patent/EP3710613A1/de not_active Withdrawn
- 2018-10-17 WO PCT/EP2018/078424 patent/WO2019091734A1/de unknown
-
2020
- 2020-04-19 IL IL274056A patent/IL274056A/en unknown
- 2020-05-11 US US15/929,581 patent/US20200270738A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2019091734A1 (de) | 2019-05-16 |
CN111344430B (zh) | 2022-03-15 |
JP2021502692A (ja) | 2021-01-28 |
CA3080428A1 (en) | 2019-05-16 |
IL274056A (en) | 2020-06-30 |
DE102017126590A1 (de) | 2019-05-16 |
KR20200087131A (ko) | 2020-07-20 |
JP7185689B2 (ja) | 2022-12-07 |
CN111344430A (zh) | 2020-06-26 |
US20200270738A1 (en) | 2020-08-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2295618A1 (de) | Verbundstoff für elektrisches/elektronisches bauteil und elektrisches/elektronisches bauteil damit | |
RU2366752C1 (ru) | Способ получения многослойного покрытия для режущего инструмента | |
Baated et al. | Effect of intermetallic growth rate on spontaneous whisker growth from a tin coating on copper | |
WO1999024633A1 (fr) | Acier inoxydable revetu d'un compose intermetallique et son procede de production | |
EP2402485A1 (de) | Metallbeschichtetes polyimidharzsubstrat mit hervorragender wärmealterungsresistenz | |
Kołczyk et al. | Investigation of two-step metallization process of plastic 3D prints fabricated by SLA method | |
EP3710613A1 (de) | Verfahren zum herstellen einer bodenplatte für ein elektronikmodul | |
JP2006219752A5 (de) | ||
US20110091739A1 (en) | Composite material for electrical/electronic part and electrical/electronic part using the same | |
DE102004006127A1 (de) | Verfahren zur Herstellung von korrosionsbeständigen und dekorativen Beschichtungen und Schichtsystemen für Substrate aus Metallen | |
MXPA05007803A (es) | Tratamientos de superficies de prechapado para mejor resistencia a la corrosion galvanica. | |
CN113529080A (zh) | 一种用于pcb微型铣刀的涂层 | |
RU2366749C1 (ru) | Способ получения многослойного покрытия для режущего инструмента | |
DE102010006267B4 (de) | Haftfestes mehrlagiges Schichtsystem und Verfahren zu dessen Herstellung | |
DE2012063A1 (de) | Verfahren zum Herstellen von aus Alu minium Legierungen bestehenden Kontakt metallschichten an Halbleiterbauelementen | |
DE102010025311A1 (de) | Verfahren zum Aufbringen einer metallischen Schicht auf ein keramisches Substrat | |
JP5155139B2 (ja) | 錫被覆電気コネクタ | |
RU2349687C2 (ru) | Способ подготовки изделий из алюминия и его сплавов перед нанесением гальванических покрытий | |
RU2366754C1 (ru) | Способ получения многослойного покрытия для режущего инструмента | |
WO2016113079A1 (de) | Verfahren zur herstellung einer eine versinterte kupfermetallisierung aufweisenden bondbaren metallisierung für kupfer-bändchen- oder kupfer-dickdraht-bonds auf einem halbleitersubstrat und entsprechende bondbare metallisierung | |
DE102015009944B4 (de) | Steckverbinder hergestellt aus einem Band aus einer Aluminium-Legierung | |
WO1993020264A1 (de) | Verfahren zum herstellen von gleitlager-schichtwerkstoff oder gleitlager-schichtwerkstücken | |
DE1521006C (de) | Verfahren zur Vorbehandlung von nicht leitenden Unterlagen fur das galvanische Aufbringen von guthaftenden Kupferschich ten fur elektrische Schaltungen | |
RU2366751C1 (ru) | Способ получения многослойного покрытия для режущего инструмента | |
JPS6342394A (ja) | 衝撃密着性に優れた亜鉛−ニツケル合金電気めつき鋼板の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20200331 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20231019 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20240301 |