Thermal dissipation is not something to be neglected even when using backside power metal. There can still be a significant thermal penalty with respect to FSPDN.
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TSMC and Intel looked at this and characterized it. They are also using the technology to provide options to improve heat dissipation in other ways.
Thermal dissipation is not something to be neglected even when using backside power metal. There can still be a significant thermal penalty with respect to FSPDN.