Two major chipmakers in the U.S., Nvidia and AMD, have struck an unusual agreement to provide the federal government some of their revenue from chip sales to China " a deal that experts say raises constitutional questions and may set a concerning new precedent. The two firms have agreed to share 15 percent of the revenue generated from selling advanced artificial intelligence (AI) chips to China in order to secure export licenses after a months-long pause, a U.S. official confirmed to The Hill on Monday.