A reviewable handoff for FR-4 DensityA reviewable handoff for FR-4 DensityExact questionFR4 density requirement and unresolved conditionControlled inputsDielectric, bare board, panel and PCBA aredifferent totals.Output boundaryExact grade density or representativemeasurement; retain assumptions.Next decisionResolve open requirements before approving theconstructionWorksheet results support a discussion; they are not an accepted production record.