# 4nm Process

BYD’s Silicon Breakthrough: How the New 4nm Chip Redefines the Global EV Race

BYD has announced the mass production of the Xuanji A3, China's first self-developed 4nm chip designed for L3 and L4 autonomous driving. This milestone marks BYD's evolution from a hardware manufacturer to a high-tech intelligence powerhouse, reducing its reliance on foreign semiconductor suppliers.