高精度电阻值印制电路板制作研究

Research on the manufacture of high precision resistance PCB

有一款要求局部线路实现精准电阻控制的印制电路板,分析影响其电阻值的因素,重点采取控制导线电阻和层压配对等方法,达到线路电阻误差不大于±8%的要求。

There is a PCB that requires the circuit to achieve precise resistance control. The factors that affect theresistance value are analyzed. The main method is to control the resistance of the wire and to match the lamination, so asto achieve the requirement with the circuit resistance error less than ± 8%.