Capacitor Test, Evaluation. and Modeling Within NASA Electronic Parts and Packaging (Nepp) Program. Why Ceramic Capacitors Fracture During Manual Sold

Capacitor Test, Evaluation. and Modeling Within NASA Electronic Parts and Packaging (Nepp) Program. Why Ceramic Capacitors Fracture During Manual Sold

Presentation discusses: (1) Why Multi-Layer Ceramic Capacitors(MLCCs) crack during manual soldering? Workmanship and parts issues. (2) Do existing qualification requirements assure crack-free soldering? MIL-spec Thermal Shock (TS) testing. MIL-spec Resistance to Soldering Heat (RSH) test. (3) What test can assure reliable soldering? Mechanical characteristics of ceramics. Comparison of three TS techniques: LND, TSD, and IWT. (4) Simulation of TS conditions.