Shin-Etsu does have factories outside Japan.

信越在日本外也有工厂。

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The largest is the Shin-Etsu Chemical Corporation.

最大的一家是信越化学公司。

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These firms also produce blank silicon wafers for other chip foundries: Shin-Etsu rolls out around 1.2 million 12-inch wafers per month.

这些工厂还为其他芯片铸造厂生产空白硅晶：Shin-Etsu 每月能生产约 120 万 12 英寸的晶圆。

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The site says that the main silicon wafer plant operated by Shin-Etsu Handotai , in Skirikawa, has shut down due to a lack of electricity.

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The reduction reflects the suspension of operations at two plants: Shin-Etsu Chemnical has stopped manufacturing operations at its facility in Shirakawa, while MEMC Electronic Materials (WFR) has shut its Utsunomiya facility.

FORBES: Japan Quake Knocked Out 25% Of Global Silicon Wafer Production