Circuit Susbtrate Materials TRIZ Cases
- Copper Foil Surface Gradient Control for Low-Loss Flexible PCBs
Controlling copper foil surface Sdq to 0.120 or less cuts high-frequency conduction loss while preserving resin adhesion in flexible wiring boards.
- Low-Roughness Copper Foil for High-Frequency Signal Loss
By limiting copper foil surface roughness to very low sdr, this case cuts high-frequency transmission loss while preserving resin adhesion.