Patent ID: 11962112
Assignee: GUANGZHOU FANGBANG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. The manufacturing method according to claim 16, wherein forming the conductive medium in the connection hole while forming the protrusion portion on the surface of the copper foil on at least one side of the flexible copper-clad plate specifically comprises:
depositing a layer of thin conductive medium on a hole wall of the connection hole through a chemical reaction, increasing a thickness of the conductive medium on the hole wall and forming a conductive hole by one or more of electroplating, chemical plating, physical vapor deposition, and chemical vapor deposition, while forming the protrusion portion on the surface of the copper foil on at least one side of the flexible copper-clad plate;
or depositing a layer of thin conductive medium on a hole wall of the connection hole through a chemical reaction, filling the connection hole with the conductive medium by one or more of electroplating, chemical plating, physical vapor deposition, and chemical vapor deposition, while forming the protrusion portion on the surface of the copper foil on at least one side of the flexible copper-clad plate.