Patent ID: 9622340
Date: 2017-04-11
CPC Classifications: H05K

Claim:
1. A flexible circuit board comprising: an insulating layer comprising a first face and a second face opposite to the first face; a linear signal line located on the first face of the insulating layer; a metal coating layer covering the linear signal line on the first face of the insulating layer, and having a thickness less than that of the linear signal line, and an electrical conductivity larger than that of the linear signal line; a plurality of grounding lines located on the first face of the insulating layer, and located at two opposite sides of the linear signal line; a circuit layer located on the second face of the insulating layer; and an electromagnetic shielding layer covering the linear signal line and the grounding lines; wherein the linear signal line and the grounding lines are located between the electromagnetic shielding layer and the circuit layer.