CCL copper line thickness | CCL foil thickness measurements in real-time price Machinery Manufacturing - Online CCL thickness of the sheet thickness measurement: We know that CCL is the basis of material PCB industry, every manufacturer has a thickness of CCL stringent requirements, because it directly affects the characteristic impedance of the thickness of the PCB board. Currently, the vast majority of domestic manufacturers have adopted CCL-contact measurement methods, some of which are on-line measurement, some offline sampling. With the improvement of the quality requirements, laser measurement gradually recognized by everyone, and applied to the production line. The advantage is that the conventional measurement could not be reached: no pause, continuous measurement, increase productivity; non-contact, no damage to the surface of the measured object; fast data processing provides the possibility for on-line control; the objective and reproducible the measurement results from the operator's influence; powerful data processing for R & D to provide a reliable support; by limiting errors and improve productivity enables manufacturers profit.