³Ô¹Ïtv / SOLDERING ENGINEERINGMeasurement worksheet: BGA first-pass and defect-rate record01Boards entering the first-passrouteWhole boards under one defined inspection/testscope.02Boards passing before repairRepaired boards must not be added to thisnumerator.03Joint opportunities inspectedDefine and count comparable jointopportunities.04Defective joint opportunitiesEach opportunity counted at most once; samesample basis.Explanatory schematic. Not to scale, a process recipe, acceptance limit or inspection evidence.