SoftBank Group Corp. (OTC:SFTBF) founder, Masayoshi Son, is planning to raise $100 billion for a new chip venture targeting the AI market. This venture could potentially pose a challenge to Nvidia Corp. and also comes at a time when OpenAI CEO Sam Altman has set an ambitious $7 trillion AI chipmaking plan. What Happened: Son’s project, codenamed Izanagi, is his latest initiative as SoftBank scales back its startup investments. The venture’s objective is to establish a company that can supplement the chip design unit of Arm Holdings Plc. (NASDAQ:ARM), thereby helping Son create an AI chip power…