High-bandwidth memory (HBM): Micron will unveil a new high-bandwidth memory chip later this year. Previously, HBM had been too costly to produce and scale. But since AI applications will need lots of super-fast memory, Micron is changing tacks. Sadana said at the conference that Micron will fill this "product gap" this year, as apparently the AI opportunity is enough to justify Micron's HBM investment.