How to Ensure Uniformity in Etching Flexible Printed Circuits
Flexible Printed Circuits When etching flexible printed circuits, uniformity is crucial for proper metallization. Inconsistent etch rates can lead to uneven copper thicknesses and other problems. To ensure consistent etch rates, PCB manufacturers need to optimize several factors in the process. These include RF power, temperature, gas proportion and ion flow. Using a two-level fractional […]