Solution for the Drift Problem of the Chip in the Packaging Process Shaohua Dong, Yueyang Liu, Rui Jin, Guoqing Leng, Feng He, Jiang Liu, Yan Pan and Junmin Wu MATEC Web Conf., 232 (2018) 04044 Published online: 19 November 2018 DOI: 10.1051/matecconf/201823204044