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

Claim 20:
21. A manufacturing process of a film, comprising the following steps:
step 1. forming a bonding layer on a base layer;
step 2. forming a functional layer at an outer side of the bonding layer, wherein the functional layer is composed of 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 the bonding layer 1 to 500 times; and the second composite copper layer is formed by repeating copper coating by an electroplating process on the first composite copper layer 1 to 500 times; and
step 3. forming a metallic material protective layer or a non-metallic material protective layer at an outer side of the functional layer.