DIN EN 60191-6-4-2004 半导体器件的机械标准化.第6-4部分:表面安装半导体器件封装外形图绘制的一般规则.焊球网格阵列(BGA)封装尺寸的测量方法
Mechanical standardization of semiconductor devices - Part 6-4: General rules for the preparation of outline drawings of surface mounted semiconductor device packages - Measuring methods for package dimensions of ball grid array (BGA) (IEC 60191-6-4:2003)