Weekly news roundup: TSMC faces AI supply strain as Samsung, Intel, and Apple test foundry alternatives

TSMC's strained capacity is triggering a systemic ripple effect: AI chipmakers, wary of delays in sub-3nm deliveries, are diverting non-core orders to Samsung and Intel. This pressures Samsung to urgently resolve GAA transistor yield issues and forces Intel to open its 18A node externally—breaking its IDM 2.0 walled garden. Compliance-wise, U.S. CHIPS Act stipulations impose 'China-exclusion' clauses, compelling American firms like Apple to absorb extra geopolitical scrutiny and migration costs when qualifying alternatives. Within 12 months, advanced packaging—especially CoWoS—will become the new bottleneck as TSMC’s expansion lags behind HBM4+GPU integration demand, while Samsung’s I-Cube and Intel’s Foveros lack volume validation. The long-tail outcome? A bifurcated foundry market: mission-critical AI chips remain locked at TSMC, while everything else shifts to mature nodes, permanently reshaping global foundry dynamics.