US 12,084,784 B2
Coated wire
Miew Wan Lo, Singapore (SG); and Murali Sarangapani, Singapore (SG)
Assigned to HERAEUS MATERIALS SINGAPORE PTE. LTD., Singapore (SG)
Appl. No. 18/248,482
Filed by Heraeus Materials Singapore Pte. Ltd., Singapore (SG)
PCT Filed Aug. 10, 2021, PCT No. PCT/SG2021/050467
§ 371(c)(1), (2) Date Apr. 10, 2023,
PCT Pub. No. WO2022/081080, PCT Pub. Date Apr. 21, 2022.
Claims priority of application No. 10202010234V (SG), filed on Oct. 15, 2020.
Prior Publication US 2023/0374690 A1, Nov. 23, 2023
Int. Cl. C25D 7/06 (2006.01); C22C 1/02 (2006.01); C22C 5/02 (2006.01); C22C 5/06 (2006.01); C22F 1/14 (2006.01); C25D 3/12 (2006.01); C25D 3/48 (2006.01); C25D 3/50 (2006.01); C25D 5/10 (2006.01); C25D 5/12 (2006.01); C25D 5/34 (2006.01); C25D 5/50 (2006.01); H01B 5/02 (2006.01); H01B 13/00 (2006.01); H01B 1/02 (2006.01)
CPC C25D 7/0607 (2013.01) [C22C 1/02 (2013.01); C22C 5/02 (2013.01); C22C 5/06 (2013.01); C22F 1/14 (2013.01); C25D 3/12 (2013.01); C25D 3/48 (2013.01); C25D 3/50 (2013.01); C25D 5/10 (2013.01); C25D 5/12 (2013.01); C25D 5/34 (2013.01); C25D 5/50 (2013.01); H01B 5/02 (2013.01); H01B 13/0016 (2013.01); H01B 1/02 (2013.01); Y10T 428/12875 (2015.01)] 19 Claims
 
1. A wire comprising a wire core with a surface, the wire core having a coating layer superimposed on its surface, wherein the wire core is a silver-based wire core comprising crystal grains, wherein the coating layer is a double-layer comprised of a 1 to 100 nm thick inner layer of palladium or nickel and an adjacent 1 to 250 nm thick outer layer of gold, wherein 20 to 70% of the crystal grains of the wire core are oriented in the <100> direction, and 3 to 40% of the crystal grains of the wire core are oriented in the <111> direction, each % with respect to the total number of crystal grains with orientation parallel to the drawing direction of the wire.