(19)
(11) EP 4 259 853 A2

(12)

(88) Date of publication A3:
21.07.2022

(43) Date of publication:
18.10.2023 Bulletin 2023/42

(21) Application number: 21823927.5

(22) Date of filing: 10.12.2021
(51) International Patent Classification (IPC): 
C25D 3/06(2006.01)
C25D 3/10(2006.01)
 C25D 3/08(2006.01)
C25D 5/50(2006.01)
(52) Cooperative Patent Classification (CPC):
C25D 3/06; C25D 3/08; C25D 3/10; C25D 5/627; C25D 5/50
(86) International application number:
PCT/EP2021/085194
(87) International publication number:
WO 2022/123008 (16.06.2022 Gazette 2022/24)
(84) Designated Contracting States:
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
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 11.12.2020 EP 20213572

(71) Applicant: Atotech Deutschland GmbH & Co. KG
10553 Berlin (DE)

(72) Inventors:
  • ÖZKAYA, Berkem
    10553 Berlin (DE)
  • WACHTER, Philipp
    10553 Berlin (DE)
  • JONAT, Michael
    10553 Berlin (DE)

(74) Representative: Atotech Deutschland GmbH & Co. KG 
Intellectual Property Erasmusstraße 20
10553 Berlin
10553 Berlin (DE)

   


(54) ELECTROPLATING BATH FOR DEPOSITING A BLACK CHROMIUM LAYER, METHOD FOR DEPOSITING, AND SUBSTRATE COMPRISING SUCH A LAYER