(19)

(11)

EP 4 771 999 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 23789573.5 (22) Date of filing: 10.10.2023

(51) International Patent Classification (IPC):  H05K 9/00(2006.01) (52) Cooperative Patent Classification (CPC): H05K 9/0077; H05K 9/0088; H05K 9/0007; H05K 9/005 (86) International application number: PCT/EP2023/078091 (87) International publication number: WO 2025/078002 (17.04.2025 Gazette 2025/16)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (71) Applicant: IQM Finland Oy 02150 Espoo (FI)	(72) Inventors: SARSBY, Matthew 02150 Espoo (FI) ORGIAZZI, Jean-Luc 02150 Espoo (FI) (74) Representative: Hoffmann Eitle  Patent- und Rechtsanwälte PartmbB Arabellastraße 30 81925 München 81925 München (DE)