Patent ID: 11962016
Assignee: SHENZHEN YUANZI TECHNOLOGY CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H  Y | IPC C  H

Claim 0:
1. A film, comprising a base layer, wherein each of front and back sides of the base layer is provided with a bonding layer, a functional layer, and a protective layer in sequence;
the functional layer comprises a first composite copper layer and a second composite copper layer;
the first composite copper layer is formed by repeating copper coating by a physical vapor deposition (PVD) process on a surface of the bonding layer 1 to 500 times; and
the second composite copper layer is formed by repeating copper coating by an electroplating process on a surface of the first composite copper layer 1 to 500 times, and wherein
the surface of the functional layer has no pinholes or wrinkles.