balling formation meaning in English

易糊钻地层
易泥包地层

The whole process of copper wire ball bonding and gold wire ball bonding were compared and analyzed , and a central composite design of experiment ( doe ) approach was applied to optimize the parameters of free air ball formation process and bonding process , separately
本文首先对比分析了铜丝球键合和金丝球键合的全过程,采用实验设计分别对烧球工艺参数和键合工艺参数进行了优化。在此优化参数下,获得了连接良好的铜丝球键合点和金丝球键合点。