Introduction 4. Recognizing Design Constraints Check for important problems including compressive creep, cushion buckling and extreme temperature effects. 5. Design Prototypes and Test Build a prototype and determine its actual performance. 6. Consider Vibration Effects Determine the natural frequency of any component which is prone to vibration damage, and compare it against the vibration characteristics of your package design.Introduction 4. Recognizing Design Constraints Check for important problems including compressive creep, cushion buckling and extreme temperature effects. 5. Design Prototypes and Test Build a prototype and determine its actual performance. 6. Consider Vibration Effects Determine the natural frequency of any component which is prone to vibration damage, and compare it against the vibration characteristics of your package design