Patent ID: 8015701

Claim:
A method of manufacturing a flexible printed circuit assembly, comprising: providing a ground layer; providing a dielectric layer on the ground layer; providing a signal trace on the dielectric layer; providing an adhesive layer on the dielectric layer and adjacent to the signal trace, the adhesive layer having a thickness smaller than a height of the signal trace; and providing a fluorocarbon layer disposed on and bonded to the adhesive layer, wherein a side surface of the signal trace includes a lower part that is covered by and in direct contact with the adhesive layer and an upper part that is covered by and in direct contact with the fluorocarbon layer, with the adhesive layer not being in contact with the upper part of the side surface of the signal trace, and wherein a top surface of the signal trace is covered by and in direct contact with the fluorocarbon layer, with the adhesive layer not being in contact with the top surface of the signal trace.