Mechanical Enabling for the Intel Pentium 4 Processor in the 478-Pin Package

18
Design Effectiveness
Solder Joint Considerations - 3
Local Board Stiffening
RM and clip create stiff load path between board and package
Limits amount of local board flexure during +z shock condition
RM /ClipRM /Clip
Shock load
Reaction at MB mounts
Top-side stiffening limits MB
flexure