常用PCB基材性能分析-FR4
常用PCB基材性能分析...
常用PCB基材性能分析...
常用PCB基材性能分析...
Calculation of the Differential Impedance of Tracks on FR4 substrates There is a discrepancy between calculated and measured values of impedance for d...
Calculation of the Differential Impedance of Tracks on FR4 substrates There is a discrepancy between calculated and measured values of impedance for d...
铝基板分为3层:一层是铜泊,二层是导热绝缘材料(常见为FR4),第三层是铝板。那这3层的作用分别是;第一层做电路用(即与FR4上的铜泊是一个意思,是走线层,就一定要是铜泊)。第二层是关键它起着...