(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 BloombergRussia Says Ukraine Downed Plane Carrying Prisoners for SwapTrump Races Toward 2024 Biden Rematch After New Hampshire WinApple Dials Back Car’s Self-Driving Features and Delays Launch