Mechanical standardization of semiconductor devices - Part 6-21: General rules for the preparation of outline drawings of surface mounted semiconductor device packages - Measuring methods for package dimensions of small outline packages (SOP)
半导体器件的机械标准化第6-21部分:表面贴装半导体器件封装外形图的一般规则 - 小外形封装(sop)封装尺寸的测量方法
IEC 60191-6-21:2010 specifies methods to measure package dimensions of small outline packages (SOP), package outline form E in accordance to IEC 60191-4.