Rumor
Taiwan earthquake impacts TSMC, Nanya Tech, and Winbond wafer production
Sunday, December 28, 2025 at 03:34 AM
A 7.0-magnitude earthquake in Taiwan has disrupted semiconductor manufacturing. TSMC reported emergency machinery shutdowns and scrapped wafers at its Hsinchu-based fabs, though it expects to reach full capacity shortly after recalibration. Memory manufacturers Nanya Tech and Winbond experienced more significant impacts, including damage to wafers in progress and equipment that will require several days to return to full production levels.
Context
A magnitude 7.0 earthquake struck Taiwan on December 27, causing significant operational disruptions for major semiconductor players Powerchip Semiconductor and Nanya Technology. Preliminary assessments indicate that the seismic activity heavily damaged quartz furnace tubes—essential components for the diffusion process—at Powerchip's 8-inch and 12-inch fabs in Hsinchu and Zhunan. Industry analysts rank this event as the third most severe earthquake impact on the local semiconductor supply chain, following the major quakes of 1999 and April 2024.
Because quartz is brittle and requires precise calibration, the repair and replacement of these tubes will likely delay wafer delivery schedules. Unlike standard machinery that can be restarted within days, these specialized components present a bottleneck that could lead to a localized shortage of niche DRAM. Nanya Technology is currently performing a thorough inventory of its production lines and is expected to provide a comprehensive update on financial and production impacts on December 29.
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