	US 12,188,150 B2
	Method for clonal-growth of single-crystal metal
Kaihui Liu, Beijing (CN); Zhibin Zhang, Beijing (CN); Muhong Wu, Beijing (CN); Dapeng Yu, Beijing (CN); and Enge Wang, Beijing (CN)
Assigned to PEKING UNIVERSITY, Beijing (CN)
Appl. No. 17/433,756
Filed by PEKING UNIVERSITY, Beijing (CN)
PCT Filed Jun. 4, 2019, PCT No. PCT/CN2019/089912 § 371(c)(1), (2) Date Aug. 25, 2021, PCT Pub. No. WO2020/173012, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 201910144704.9 (CN), filed on Feb. 27, 2019.
Prior Publication US 2022/0136134 A1, May 5, 2022
Int. Cl. C30B 29/02 (2006.01); C30B 1/02 (2006.01); C30B 29/64 (2006.01)

CPC C30B 29/02 (2013.01) [C30B 1/02 (2013.01); C30B 29/64 (2013.01)]

9 Claims

1. A method for clonal growth of single-crystal metal, which comprises the following steps:

providing a first single-crystal copper foil and a first polycrystal copper foil;

placing the first single-crystal copper foil on the first polycrystal copper foil; and

annealing to transform the first polycrystal copper foil into a second single-crystal copper foil having the same surface index as the first single-crystal copper foil by cloning with the first single-crystal copper foil as a clone matrix, wherein the second single-crystal copper foil has a larger size than the first single-crystal copper foil.