直线模组运动精度补偿在预键合中的应用

在预键合生产环节中,直线模组运动精度补偿主要用于解决由于工作台运行精度偏差造成的预键合误差,从而提高整机的键合精度。直线模组运动精度补偿是利用激光干涉仪的线性测长测量直线模组在全行程内的实际位置,再将实际位置偏差值通过补偿驱动器进行补偿设置,从而得到完全符合实际机构运行工况的运行数据。

Uncertainty Evaluation of Boar Fresh Semen Quality

According to JJF1059.2-2012 and CNAS-GL06, the measurement uncertainty of four indicators （semen volume, sperm motility and validity, progressive motility, abnormal sperm percentage） of boar fresh semen, as well as its influencing factors, was analyzed. The results showed that the measurement uncertainty of semen volume and progressive motility caused by inspectors was low, and their measurement results reliability was high. There were small differences in measurement results of semen volume and progressive motility among inspectors. However, the measurement uncertainty of sperm motility and abnormal sperm percentage was relatively large, and great differences were found among different inspectors. Therefore, the training of inspectors＇ measuring sperm motility and abnormal sperm percentage should be strengthened, and the comparison of measurement results among inspectors should be performed in the future.