It may be cheaper to make, but you need to add WBT fees on top....

It may be cheaper to make, but you need to add WBT fees on top.
Lets speculate for no reason.....
I assume its true the fabs can save by reducing layers.....

https://www.weebit-nano.com/technology/reram-advantages/

Lets say a 130nm wafter costs $1000:

Adding eflash adds 20% extra, total $1200.
Adding ReRAM adds 5% extra total $1050

Cost savings of $150 to go with ReRAM.

So say you already have the internal IP for eFlash, then there needs to be a commercial justification to swap to ReRAM.
Lets say the split is 50/50 to DB HiTek an Weebit.

DB save $75 per wafer and Weebit earns $75 per wafer.

If Weebit try to charge much more than $100 then the foundries wouldn't bother.
WBT can also charge a fee to the end customer for using ReRAM i think.





Costs are higher at the 22/28nm range, profits are higher..... so the contract with Global Foundries is much more critical the DB Hitek IMO.

DB Hitek is really just a stepping stone to prove the technology, the real money will come with GF one the smaller nodes.