ASIC Design - die size reduction lead to how much business profit

[damdam23]

Hi,

I am working as an ASIC design engineer and wanted to know how much profit in terms of $ a company makes on die size reduction, let's say by 1mm sq? The technology node used is 28nm. Can anyone point me to some docs/articles around the same?

Thanks

 

[jbeniston]

If you know your wafer cost, size and old die size, it's not too hard to work out. You can thrown in yield figures if you have them too.

 

[damdam23]

If you know your wafer cost, size and old die size, it's not too hard to work out. You can thrown in yield figures if you have them too.

Thanks jbeniston, I am sorry am not completely verse with the cost calculation per die. I will try to put up the info I have below:
Original die size = 100mm^2
new die size = 99mm^2 (1% saving)
technology node = 28nm (dont know the wafer cost)
manufacturer = TSMC (could not find the cost details on their website)

Can you please share where can I find approximate cost for say 300mm^2 wafer for 28nm ?