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Extract from the Register of European Patents

EP About this file: EP4020548

EP4020548 - MULTI-STEP ISOTROPIC ETCH PATTERNING OF THICK COPPER LAYERS FOR FORMING HIGH ASPECT-RATIO CONDUCTORS [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  28.10.2022
Database last updated on 12.11.2024
FormerThe application has been published
Status updated on  27.05.2022
Most recent event   Tooltip30.08.2024New entry: Renewal fee paid 
Applicant(s)For all designated states
INTEL Corporation
2200 Mission College Blvd.
Santa Clara, CA 95054 / US
[2022/26]
Inventor(s)01 / Fadayomi, Oladeji
Chandler, 85226 / US
02 / Ecton, Jeremy
Gilbert, 85298 / US
03 / Ojeda, Oscar
Chandler, 85248 / US
 [2022/26]
Representative(s)Goddar, Heinz J.
Boehmert & Boehmert
Anwaltspartnerschaft mbB
Pettenkoferstrasse 22
80336 München / DE
[2022/26]
Application number, filing date21196207.113.09.2021
[2022/26]
Priority number, dateUS20201713228223.12.2020         Original published format: US202017132282
[2022/26]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP4020548
Date:29.06.2022
Language:EN
[2022/26]
Search report(s)(Supplementary) European search report - dispatched on:EP05.04.2022
ClassificationIPC:H01L23/498, H01L21/48
[2022/26]
CPC:
H01L23/49822 (EP); H01L21/32139 (CN); H01L21/4846 (US);
H01L21/0274 (CN); H01L21/32134 (CN); H01L21/4857 (EP);
H01L23/49838 (US); H01L23/49827 (US) (-)
Designated contracting statesAL,   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 [2022/48]
Former [2022/26]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 
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:MEHRSTUFIGES ISOTROPES ÄTZEN VON DICKEN KUPFERSCHICHTEN ZUR HERSTELLUNG VON LEITERN MIT HOHEM ASPEKTVERHÄLTNIS[2022/26]
English:MULTI-STEP ISOTROPIC ETCH PATTERNING OF THICK COPPER LAYERS FOR FORMING HIGH ASPECT-RATIO CONDUCTORS[2022/26]
French:FORMATION DE MOTIFS DE GRAVURE ISOTROPE EN PLUSIEURS ÉTAPES DE COUCHES DE CUIVRE ÉPAISSES POUR FORMER DES CONDUCTEURS À HAUT RAPPORT D'ASPECT[2022/26]
Examination procedure25.10.2022Amendment by applicant (claims and/or description)
25.10.2022Examination requested  [2022/48]
25.10.2022Date on which the examining division has become responsible
Fees paidRenewal fee
29.08.2023Renewal fee patent year 03
29.08.2024Renewal fee patent year 04
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Documents cited:Search[X]US5118385  (KUMAR NALIN [US], et al) [X] 1,5,6,9,10,12* column 2, line 4 - column 3, line 59; figure 9 *;
 [X]US2010263923  (KODANI KOTARO [JP], et al) [X] 1,5,6,9,10,12,15 * paragraph [0155]; figure 40 *;
 [XI]US2012222894  (KANEKO KENTARO [JP], et al) [X] 1,2,5,6,9,10,12,15 * paragraphs [0137] - [0140]; figure 19A * [I] 3,4,7,8,11,13,14
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.