Printed boards and printed board assemblies - Design and use - Part 6-4: Land pattern design - Generic requirements for dimensional drawings of surface mounted components (SMD) from the viewpoint of land pattern design (IEC 61188-6-4:2019); German version EN IEC 61188-6-4:2019
印制板和印制板组件.设计和使用.第6-4部分:接地图案设计.从接地图案设计的角度看表面安装组件(SMD)尺寸图的一般要求(IEC 61188-6-4-2019);德文版EN IEC 61188-6-4:2019