According to Taiwan media reports, an instantaneous voltage drop in power occurred in Taiwan's southern science park on the evening of the 27th, causing the machines of some semiconductor manufacturers in the park to be affected. According to the response of TSMC and other related manufacturers, the voltage drop has been gradually returned to normal with the immediate activation of the manufacturer's non-power system, which has limited impact on production and no impact on operations. However, according to the information, TSMC 5nm and 4nm production line or large-scale wafer scrap.

It is understood that the southern science park in the evening of the 27th instantaneous power voltage drop, the reason is that the outsourcing manufacturer construction accidentally dug into the power supply-related facilities, causing the park power supply instantaneous pressure drop. Although the voltage drop was short-lived, the machines of some manufacturers in the park were still affected. Since Nanke is the leading foundry TSMC's most advanced 5nm and 4nm process production base, so TSMC's situation is particularly concerned about the outside world.

According to TSMC's official response, a brief voltage drop occurred in the evening at the Nanke plant, and there was no complete power outage. Therefore, the affected machines are limited and the operation will not be affected after the restoration of normalcy one after another.

However, according to technology news from the market, TSMC 18A plant in the evening suddenly voltage drop 90%, although the plant has set up a UPS (Uninterruptible Power Supply System), but because the UPS system can not load the sudden voltage drop, so it may lead to large-scale wafer scrap situation, but also further affect TSMC 5nm and 4nm process wafer production.

The source stressed that TSMC's 18A fab is the main manufacturing base for TSMC's 5nm and 4nm processes, which makes this voltage drop may have a greater impact on operations than before, especially for customers using 5nm and 4nm processes will be affected, such as Apple, AMD, Mediatek, NVIDIA, QUALCOMM and other manufacturers. Moreover, at this stage, the new iPhone will enter the market in September, which may have a greater impact on Apple.