DS DS/EN 60191-6-17
DS DSEN 60191-6-17 2011-JUN-13 Mechancal standardzaton of semconductor devces - Part 6-17 General rules for the preparaton of outlne drawngs of surface mounted semconductor devce packages - Desgn gude for stacked packages - Fne-ptch ball grd array and fne-ptch land grd array P-PFBGA and P-PFLGA