> Cost saving would've been to get rid of the IHS entirely.
The IHS itself is a cost saving measure.
When Intel and AMD first introduced flip chips, they didn't have the IHS and the heatsink was balanced on top while you tensioned a spring. If you rocked the heatsink in any direction you would (not could) crush an edge or corner of the chip and likely kill the CPU.
The IHS protected the chip and reduced the failure/return rate.
The IHS itself is a cost saving measure.
When Intel and AMD first introduced flip chips, they didn't have the IHS and the heatsink was balanced on top while you tensioned a spring. If you rocked the heatsink in any direction you would (not could) crush an edge or corner of the chip and likely kill the CPU.
The IHS protected the chip and reduced the failure/return rate.