标准摘要
[中文适用范围]： 提供有关用于四个侧面带有 J 引线的电子元件表面附着的焊盘图案几何形状的信息。提供适当的尺寸、形状和公差的表面贴装焊盘图案，以确保有足够的面积 [外文原描述]： Provides information on land pattern geometries used for the surface attachment of electronic components with J leads on four sides. Provides the appropriate size, shape and tolerances of surface mount land patterns so as to ensure sufficient area for the appropriate solder fillet, and also allows for inspection, testing and reworking of resulting solder joints.
英文名称Printed boards and printed board assemblies - Design and use - Part 5-6: Attachment (land/joint) considerations - Chip carriers with J-leads on four sides