最初の項目は常にピンの出典です。全体の確度は、各資料が上記の開始・終了時刻をどれだけ強く裏付けているかの加重平均です。最新の資料より180日古くなるごとに、重みは半分になります。
TSMC's[2] 2nm page says N2 "has started volume production in 4Q25 as planned" and its 2025 annual report that it "entered high volume manufacturing in 4Q'25"; neither names the day, so the quarter's last day stands in.
TSMC's[1] own annual report states "Our 2-nanometer technology successfully entered high volume manufacturing in 4Q'25, with good yield, and we expect a fast ramp in 2026."
The Taipei Times (CNA) says TSMC[1][2] "officially began volume production of its 2-nanometer chips in the fourth quarter of 2025", that production is "centered at Fab 22 in Kaohsiung", and that the website update was the first official confirmation.
TechSpot notes TSMC[1][2] disclosed the milestone on its website rather than in a press release, "fulfilling its goal to begin production in the fourth quarter of 2025", with fabrication starting at Kaohsiung.
Tom's Hardware reports TSMC[1][2] began N2 volume production "as planned" in 4Q25, at Fab 22 near Kaohsiung rather than Fab 20 near Hsinchu as expected, and lists N2's gains over N3E.
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