Research on Three-Proofing Technology Based on PCBA of Airborne Electronic Equipment

It is reported that 80% of airborne electric equipment failures have been linked to environmental factors. Adaptability to harsh environment has become an important tactical index for airborne electronic equipments. In order to improve the three-proofing properties (including moisture proofing property, salt spray proofing property and fungus proofing property),it is a must to improve the three-proofing effect in an all-round manner by means of rational structural layout, component design as well as PCBA design, process, production control, test verification. The three-proofing of airborne electronic equipment should be verified by tests in accordance with national military standards and other applicable standards so that requirements of environmental adaptability can be met. Meanwhile, data support can be provided for the upgrade of follow-up airborne electronic equipments.