基板 plate,绝缘层 insulating layer,耐电压 withstanding voltage,耐腐蚀 corrosion resistance,耐温 temperature resistance,热传导系数 thermal conductivity,表面抗阻 surface resistance,熔锡温度 temperature of tin melting,操作范围 operating range,循环温度circulation temperature,导电层 conductive layer。