If EUV is out of reach and access to DUV is tightening, there is a limit to how far chipmakers can go with older gear and new approaches.

If EUV is out of reach and access to DUV is tightening, there is a limit to how far chipmakers can go with older gear and new approaches.

As ASML CEO Christophe Fouquet told TechCrunch in May, what China can currently buy are older-generation deep ultraviolet tools — gear first shipped about a decade ago — the same…