³Ô¹Ïtv / FLEX ENGINEERINGReview sequence: FPC Controlled Impedance1ReferenceContinuous or hatched copper, shield and transition geometry.2DielectricFinished separation, coverlay, adhesive and data method.3Model scopeSingle-ended reference versus actual covered/coupled structure.4VerificationRepresentative coupon plus appropriate product validation.Concept drawing / no released dimensions, factory evidence or automatic approval