KS C IEC 61188-5-6-2009 Printed boards and printed board assemblies?Design and use-Part 5-6:Attachment(land/joint) considerations-Chip carriers with J-leads on four sides
2013KS C IEC 61188-5-6:2013 Printed boards and printed board assemblies ? Design and use-Part 5-6:Attachment(land/joint) considerations-Chip carriers with J-leads on four sides
2009KS C IEC 61188-5-6-2009 Printed boards and printed board assemblies?Design and use-Part 5-6:Attachment(land/joint) considerations-Chip carriers with J-leads on four sides