ABSTRACT
Long-term non-operating reliability depends on the construction of the electronic products and assemblies. This chapter focuses on long-term storage effects of some specific electrical products. Parameters of concern are presented along with available field data. Parameters of concern in long-term inactive storage include frequency drift, power output, linear tuneable bandwidth corrosion of ribbon bonds, and threshold current. Parameters of concern in long-term inactive storage include linearity of capacitance change with applied voltage, magnitude, and insertion loss. Parameters of concern in long-term inactive storage are conversion loss, noise temperature ratio, insertion loss, noise figure, change in nonlinear resistance characteristics, and forward voltage drop. Parameters of concern in long-term inactive storage are: peak wavelength which should remain within required bandwidth, responsivity, resistance, time constant, and crosstalk between adjacent elements. Parameters of concern in long-term inactive storage for thermoelectric coolers are cooling capacity degradation and Z.
