solder bridgecomponent misaligninsufficient soldertombstoningwrong partlifted leadPCB scratchmissing partcold jointsilkscreenother01002003004005 of 11 causes= 82% of defectsfailure modedefects in the quarterPareto: sorted bars, cumulative line, and an axis fixed at 100%cumulative share of defects (%)02040608010080%