Vibration Tests on HI-ReL EEE Parts: Types of test and test flow for space applications. Depending of the intended application electrical components are exposed to either transitory or permanent dynamic mechanical stress which can impair the performance (e.g. mechanically...
In Alter Technology micro-sectioning is accomplished in a specifically dedicated laboratory and by ESA certified staff on PCB/SMD inspection. ESA selects those laboratories that according to the higher quality standards are recommended to perform such operations on SMT/PCB...
Plated Through Vias (PTV) are critical elements in PCB systems and special care must be paid during their inspection in order to ensure the reliability, as they are one the main factors that determine the PCB Quality. The functionality and reliability of PTVs are dictated by:...
Thermomechanical stress in PCB/PWBs is generated by the mismatch between the coefficient of thermal expansion (CTE) of the materials comprising the system. In general laminate material used for PCB fabrication, as well as other dielectric polymers, have larger CTE than metal...
Microsectioning and materialographic inspection are mandatory in different verification and qualification standards issued by international agencies and public bodies such as the European Space Agency (ESA), the Defense and Logistics Agency (MIL DLA specifications) and the IPC...
