US 12,071,692 B2
Electrically conducting material with coating
Michael Bohsmann, Dettingen (DE); and Robert Zauter, Neu-Ulm (DE)
Assigned to WIELAND-WERKE AG, Ulm (DE)
Appl. No. 18/040,169
Filed by WIELAND-WERKE AG, Ulm (DE)
PCT Filed Dec. 21, 2020, PCT No. PCT/EP2020/000215
§ 371(c)(1), (2) Date Feb. 1, 2023,
PCT Pub. No. WO2022/073575, PCT Pub. Date Apr. 14, 2022.
Claims priority of application No. 10 2020 006 059.5 (DE), filed on Oct. 5, 2020.
Prior Publication US 2023/0265549 A1, Aug. 24, 2023
Int. Cl. C23C 28/00 (2006.01); B32B 15/01 (2006.01); B32B 15/04 (2006.01); B32B 15/20 (2006.01); C22C 9/00 (2006.01); C22C 9/02 (2006.01); C22C 13/00 (2006.01); C22C 30/02 (2006.01); C22C 30/04 (2006.01); C22F 1/08 (2006.01); C23C 2/08 (2006.01); C23C 28/02 (2006.01); C23C 30/00 (2006.01)
CPC C23C 2/08 (2013.01) [B32B 15/01 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/20 (2013.01); C22C 9/00 (2013.01); C22C 9/02 (2013.01); C22C 13/00 (2013.01); C22C 30/02 (2013.01); C22C 30/04 (2013.01); C22F 1/08 (2013.01); C23C 28/021 (2013.01); C23C 28/023 (2013.01); C23C 28/027 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); Y10T 428/12431 (2015.01); Y10T 428/12438 (2015.01); Y10T 428/12896 (2015.01); Y10T 428/12903 (2015.01); Y10T 428/1291 (2015.01)] 6 Claims
OG exemplary drawing
 
1. An electrically conducting material comprising a substrate composed of copper or a copper alloy, and a coating composed of at least one layer, where the coating has an outermost layer comprising at least 90 vol % of an intermetallic phase which is substantially Cu6Sn5,
wherein the surface of the outermost layer that faces away from the substrate has insular, silver-rich precipitations with an area fraction of 7 to 20%.