The lessor known Intellectual Property: Mask Works-The data needed to make an IC(en.wikipedia.org)
en.wikipedia.org
The lessor known Intellectual Property: Mask Works-The data needed to make an IC
https://en.wikipedia.org/wiki/Semiconductor_Chip_Protection_Act_of_1984
All I know is that is sounds like a particularly expensive specialty law expert if you happen to need one.