(19)
(11) EP 4 555 833 A1

(12)

(43) Date of publication:
21.05.2025 Bulletin 2025/21

(21) Application number: 23764233.5

(22) Date of filing: 04.08.2023
(51) International Patent Classification (IPC): 
H05K 3/28(2006.01)
H05K 3/34(2006.01)
(52) Cooperative Patent Classification (CPC):
H05K 2201/09872; H05K 3/284; H05K 3/285; H05K 3/281; H05K 3/3478; H05K 3/3485; H05K 3/3494; H05K 2201/0129
(86) International application number:
PCT/EP2023/025367
(87) International publication number:
WO 2024/032931 (15.02.2024 Gazette 2024/07)
(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

(30) Priority: 10.08.2022 GB 202211698

(71) Applicant: H. K. Wentworth Limited
Sheerwater Woking, Surrey GU21 5RW (GB)

(72) Inventor:
  • KINNER Phil
    Surrey GU21 5RW (GB)

(74) Representative: Boult Wade Tennant LLP 
Salisbury Square House 8 Salisbury Square
London EC4Y 8AP
London EC4Y 8AP (GB)

   


(54) METHOD OF FORMING AN ELECTRONIC ASSEMBLY HAVING A CONFORMAL COATING, ELECTRONIC ASSEMBLY AND FILM PRECURSOR TO CONFORMAL COATING