(Bloomberg) -- OpenAI Chief Executive Officer Sam Altman, who has been working to raise billions of dollars from global investors for a chip venture, aims to use the funds to set up a network of factories to manufacture semiconductors, according to several people with knowledge of the plans.Most Read from BloombergPutin Orders Hunt for Property of Russian Empire, Soviet UnionFord Cuts Workforce Making Electric F-150s on Weak DemandYouTube and Spotify Won’t Launch Apple Vision Pro Apps, Joining N