固定电荷 meaning in English

fixed charge

Using two - dimensional numerical simulation software , analyze the affect of isolated - trench ' s parameters on the breakdown voltages of three - class bipolar power devices ( whose ideal breakdown voltages correspond to 40v , 70v and 100v ) , which include width , depth , isolated material ' s dielectric constant , fixed interface - charge and field plate located at the top of deep - trench termination
利用二维数值模拟软件分析了影响三类典型应用的双极功率器件(对应的理想击穿电压bv _ ( cro )分别为： 40v ， 70v ， 100v )击穿电压的诸多因素(主要包括阱宽度、阱深度、阱内填充介质、界面固定电荷、阱区顶端场板) 。