One of the quality assurance inspections that are performed in EEE parts is external visual inspection. The applicable method for Microchip FPGAs as well as for other parts with generic specification MIL-PRF-38535, is MIL-STD-883 Method 2009.
ESCC (European Space Components Coordination) released several Detail Specifications to guide European manufacturers on the manufacture and testing of the different series of MIL-DTL-38999 (series I, series II and series III) for Space applications.
Photonic Encryption, Quantum communications offer many advantages for secure data transmission, such as confidentiality, integrity and spy detectability. Quantum physics allows the encoding of information using the correlation between two or more particles (photons, atoms) thanks to quantum cryptography or Quantum Key Distribution (QKD), a method of processing information arising from the properties of quantum entanglement.
Resistors assembled to a PCB have been submitted to the ECSS verification program. Metallographic analysis allows us to check the status of such devices after performing the environmental tests (Vibration & Thermal Cycling).
Recommendation for voltage derating means that the actual capacitor shall be used in the application at a lower voltage than the rated voltage. Derating is expressed usually by percentage of rated voltage that shall be subtracted. For example, 20% derating means that the capacitor shall be used at 80% of rated voltage at the specific applications (10V capacitor to be used on 8V maximum).
Electrolytic capacitors are more complicated than electrostatic capacitors in their construction. The function of electrolyte is to provide electric connection to the first electrode with very high surface with fine structure and thus to achieve high capacitance values.