SemiconductorsNvidia partnership helps South Korean chipmaker supplant Samsung, reap big profitsA Nvidia circuit board equipped with high-bandwidth memory chips by SK Hynix. (SK Hynix)NAMI MATSUURAJune 3, 2026 07:20 JSTSEOUL -- South Korean chipmaker SK Hynix's focus on high-bandwidth memory in a bid to escape the ups and downs of the commodity semiconductor market has paid off big in the AI era, with a close relationship with Nvidia and a shockingly high profit margin.