论文部分内容阅读
一块数字集成电路在被装上印制板之前,有必要先对该器件的质量进行检测,判断其好坏,剔除早期失效器件或不合要求的器件,以保证系统的正常工作.若在系统的故障诊断过程中去排除失效器件,其工作量将要比装板前的检验大得多.为了检验一块器件,通常有两种方法:一种是在输入端或输出端测量每项指标的数值,然后同手册所述的指标值或自己要求的值相比较,从而决定取舍.作
Before a digital integrated circuit is mounted on a printed circuit board, it is necessary to first test the quality of the device to determine whether it is good or bad, excluding early failed devices or unwanted devices to ensure the normal operation of the system. To troubleshoot the troubleshooting process to eliminate the device, the workload will be much larger than the pre-plate test.In order to test a device, there are usually two ways: one is measured at the input or output of each indicator value, and then Compare with the index value stated in the manual or the value required by yourself, so as to make a decision