BYD Co., the Chinese auto giant backed by Warren Buffett, is rushing to make China self-sufficient in the production of electric vehicles. On Monday, the firm said in a filing it has secured 800 million yuan ($113 million) in a Series A+ round for its chipmaking arm, BYD Semiconductor.
At stake is the race to make so-called insulated gate bipolar transistors (IGBT), an integral silicon component in EVs’ power management system that’s at the core of BYD Semiconductor. The electronic switch is dubbed by industry experts the “CPU of an EV” for it reduces power loss and improves reliability. It’s the second-most expensive part of an EV after batteries, accounting for around 7-10% of the total cost according to market research.
BYD is fighting a fierce competition against Germany’s semiconductor giant Infineon Technologies AG, which produced 58% of the IGBTs used in China’s electric cars in 2019. BYD