As he gears up to take SpaceX public in the largest IPO on record, CEO Elon Musk on Thursday spoke to employees of ASML , Europe's most valuable company, underscoring the importance of chip manufacturing to his two main businesses. As the sole provider of a crucial advanced chipmaking machine, ASML will be a likely supplier for Musk's massive chip fabrication plant in Texas known as Terafab. Calling in virtually to ASML's annual technology conference, Musk spoke in a fireside chat with CEO