Definition

MIL-PRF-31032 is the current DoD performance specification establishing general requirements for all types of military PCBs (rigid, flex, rigid-flex). It introduces the Qualified Manufacturers List (QML) program allowing manufacturers to implement best commercial practices while meeting military performance needs. QML certification requires establishing a Technical Review Board and ongoing DLA certification. If you're designing for military applications, your fabricator must be on the QML for MIL-PRF-31032.