TSMC Under Fire: Patent Probe and Google's Chip Split Expose Risks Beneath 72% Market Share
12.06.2026 - 17:05:13 | boerse-global.de
Taiwan Semiconductor Manufacturing’s grip on the global foundry market has never been tighter — 72.3 percent last quarter — but two developments are testing the narrative for investors. A US patent lawsuit threatens to disrupt supplies to the company’s largest market, while a key customer is quietly reducing its single-source dependence.
Google spreads the Icefish recipe
Alphabet is in talks to split production of its next-generation AI chip, codenamed Icefish. TSMC will handle the core logic on its advanced 1.4nm process, but the memory and I/O portion is slated for Samsung Foundry. The logic is straightforward: TSMC’s leading-edge capacity is too tight to risk a single point of failure. Mass production is not expected before 2028, yet the move signals a shift in how big tech buyers approach wafer sourcing. Other hyperscalers are watching closely.
US patent cloud hangs over 75% of revenue
The International Trade Commission is investigating a complaint filed by Longitude Licensing and Marlin Semiconductor, alleging that TSMC uses unlicensed advanced manufacturing techniques. A preliminary ruling is due in June 2026, with a final decision in October. In theory, the ITC could impose import restrictions on affected chips. That would hurt: North America accounts for about three-quarters of TSMC’s sales. Taiwan’s economy ministry has expressed confidence, pointing to the company’s strong intellectual property stance, but the case remains an open risk for shareholders.
Bottlenecks at home: water, talent, land
CEO C.C. Wei has identified five critical constraints that could slow growth: water, electricity, labor, land, and engineering talent. The most pressing is the shortage of skilled workers, followed closely by water supply. TSMC recently considered using water tanker trucks to keep fabs running, a reminder of the severe drought that hit Taiwan in 2021. Recent rainfall has provided temporary relief, but long-term supply remains a strategic headache.
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President Lai Ching-te has responded with promises: a network of regional reservoirs to stabilize water, a plan to keep electricity reserves above 20 percent, and 1,305 hectares of land allocated for new industrial parks. Work permits for foreign specialists will also be eased.
Billions saved by skipping ASML’s new machines
TSMC has confirmed it will not buy ASML’s High-NA EUV lithography equipment before 2029. Each machine costs around $400 million. Instead, the company is using multi-patterning on existing Low-NA EUV tools to hit its 2nm targets. The delay saves between $5 billion and $10 billion in capital spending over that period. That money is being redirected to advanced packaging technology such as CoWoS, where capacity is already fully booked through the end of 2026.
Pricing power and record revenue
TSMC’s market dominance gives it room to raise prices. From the second half of 2026, the company plans to increase prices for its 3nm process by about 15 percent, reflecting strong demand for AI accelerators. In May, revenue hit a record of approximately €11.6 billion — up 30 percent year-over-year. Management expects full-year 2026 dollar revenue growth to exceed 30 percent, with capital expenditure between $52 billion and $56 billion.
TSMC at a turning point? This analysis reveals what investors need to know now.
Stock: strong run, but near-term caution
TSMC’s shares recently traded at €366.50, a gain of about 1.4 percent on the day. The stock has surged nearly 34 percent since the start of the year and roughly 97 percent over the past twelve months. From the 52-week low of €181.20, the price has effectively doubled. However, at 53 the relative strength index signals neutral momentum — neither overbought nor clearly supported. The current level stands about 6–7 percent below the 52-week high of €389.50.
The next major catalyst arrives in June, when the ITC’s preliminary patent ruling is expected. That decision will likely determine whether the patent risk is a manageable distraction or a genuine threat to TSMC’s North American franchise.
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