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ADVANTAGES AND LIMITATIONS OF PEMs

Limitations of PEMs Relative to HSMs:

Non-hermetic package
More limited temperature range
Higher thermal resistance
More rigorous controls needed for PCB assembly
More sensitive to thermomechanical stresses
Absorbed moisture in SMT packages during PCB assembly must be considered
Not compatible with short production runs or non-standard processing
Not compatible with inflexible baselining

Mil Plastic - 30 AUG 94
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