[phonon]

You don't need your own mask; you can share with other customers.

https://en.wikipedia.org/wiki/Multi-project_wafer_service

https://www.tekmos.com/products/asics/reducing-the-asic-nre

[ohazi]

Yes, this is what Google is doing with this project.

[phonon]

Yup, https://youtu.be/EczW2IWdnOM?t=3444