Proposta de metodologia para utilização de componentes não qualificados em sistemas microprocessados para aplicações espaciais

This work considers a methodology and its application in a memory system, in such a way that through well defined steps, it makes possible the use of not qualified memory components for space area with the specific degree of reliability. The methodology uses the application of the screening technique with the purpose to know the characteristics of reliability of these components and the elimination of defective components. Another phase in the methodology is the increase of the reliability in the development of the module of SRAMs memories (Static Random Access Memories) for on board computer, using the components that has survived to the screening. Finally, it is proposed a validation phase for the development of reliability of the module using the fault injection method.