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(11)

EP 4 824 313 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24838147.7 (22) Date of filing: 13.12.2024

(51) International Patent Classification (IPC):  C23C 14/14(2006.01) C23C 14/34(2006.01) C22C 9/04(2006.01) (52) Cooperative Patent Classification (CPC): C23C 14/3407; C23C 14/3414; C22C 9/04; C23C 14/14; H01J 37/3435 (86) International application number: PCT/US2024/060157 (87) International publication number: WO 2025/129091 (19.06.2025 Gazette 2025/25)

(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: GE KH MA MD TN (30) Priority: 15.12.2023 US 202363610738 P (71) Applicant: Materion Corporation Mayfield Heights, OH 44124 (US)	(72) Inventors: SMATHERS, David Bird Mayfield Heights, Ohio 44124 (US) ZENG, Qi Mayfield Heights, Ohio 44124 (US) FISHER, Matthew Mayfield Heights, Ohio 44124 (US) ZHANG, Qi Mayfield Heights, Ohio 44124 (US) GOACHER, Robyn E. Mayfield Heights, Ohio 44124 (US) (74) Representative: Kador & Partner Part mbB  Corneliusstraße 15 80469 München 80469 München (DE)