UMC, the third largest semiconductor foundry in the world, suffered a power supply accident and some wafers were scrapped.

CTOnews.com, June 2, according to the China Times News Network, a power supply voltage sag occurred in the southern science and industry park in Tainan on June 1. United Power, the world's third largest semiconductor contract manufacturer, said that its production was affected to a certain extent, and some wafers were forced to be scrapped, and the specific losses need to be further counted.

▲ source: UMC reported that the voltage sag has had a slight impact on UMC's production, and some wafers have been scrapped. In addition, some of the machines need to be rebooted, and at present, all the machines have resumed production. UMC said it would work overtime to cope with the negative impact of the voltage sag on production. UMC stressed that its financial target for the second quarter remained unchanged.

Other manufacturers affected by the power supply accident are TSMC. TSMC pointed out in a statement that the power supply in the affected plants has quickly returned to normal and is not expected to affect operations. The specific reasons should be based on the announcement of TSMC.

CTOnews.com access to information learned that the southern science and industry park at 14 pm on the 1st at about a short time voltage sag event. The Nanke Administration Bureau said that the main cause of the power supply accident was the voltage drop caused by the failure of the 161kV GIS isolation switch at 2: 59 p.m., resulting in a sudden drop in the voltage of some semiconductor manufacturers in Tainan Science Park and Kaohsiung Science Park. At present, the two parks have returned to normal power supply.