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No, 300mm is correct and refers to physical size of whole silicon wafer[1]. 300mm (commonly known as 12") is currently the biggest class of silicon wafers.

Naka factory was producing 300mm wafers using 28nm process [2].

[1] https://en.wikipedia.org/wiki/Wafer_(electronics)#Standard_w...

[2] https://en.wikipedia.org/wiki/List_of_semiconductor_fabricat...

300 mm is correct. It refers to the wafer size.

https://en.wikipedia.org/wiki/Wafer_(electronics)#Standard_w...

Are we sure that it's not 300mm, referring to size of the wafer? Although I'm not sure automotive silicon normally takes place in 300mm fabs...

They use 200nm later in the article, but wikipedia[0] says that 300mm is a standard wafer size, and fabs are classified by the diameter of wafer, so you might be right. I assumed it was the feature size before, too.

[0] https://en.wikipedia.org/wiki/Wafer_(electronics)

Are you sure? It’s a 300mm wafer fab.

Here’s another article that outlines their current fab wafer size.

https://www.eetimes.com/renesas-to-expand-300-mm-fab-in-90-6...

It's confusing because they refer to "200nm" in the same article.