Application of Etching Compensation on Ladder Circuit
A new etching compensation technology was proposed to the fabricate ladder circuit with linewidth of 75 μm on the ladder copper-clad laminates with thickness of 15 μm/30 μm.Double-sided copper-clad laminates with thickness of 15 μm were firstly used to produce ladder laminates.Then etching compensation technology was used to make 75 μm linewidth ladder circuit.Finally,the produced ladder circuits were evaluated by line width,line morphology and etching factor.The results showed that this technology was simple,reliable and could be widely used in the manufacture of ladder circuit.