Xiaomi has begun mass production of its 3-nanometre XRing O1 system-on-a-chip (SoC), which will power the firm’s latest smartphone and tablet devices, ahead of Thursday’s new product launch in Beijing, according to company founder, chairman and chief executive Lei Jun. In a Tuesday post on Chinese microblogging site Weibo, Lei confirmed local media reports that the XRing O1 was based on the 3-nanometre lithography process in semiconductor manufacturing. He also said the new integrated circuit...