Nvidia CEO Jensen HuangSlaven Vlasic/Getty Images for The New York Times; Chelsea Jia Feng/BIChip stocks surged on Monday after Foxconn's earnings pointed to strong demand for AI servers.The company reported a record $64.75 billion in revenue for the fourth quarter, up 15% from a year earlier.Nvidia, AMD, Micron, Taiwan Semiconductor Manufacturing, and ASML all gained.Chip stocks are starting the week off on a high note after tech manufacturer Foxconn reported a solid earnings beat, pointing to strong demand for artificial intelligence servers.Nvidia rallied 5% Monday, joining other US chip stocks like Advanced Micro Devices and Micron Technology, up 4% and 12%, respectively.