explained

The glossary

HBMHigh-bandwidth memory

HBM is ordinary DRAM memory, stacked into a tower and parked right next to the AI processor. Micron's own definition: a specialized, high-performance 3D-stacked SDRAM architecture. the full explainer

RPORemaining performance obligations

RPO is the dollar value of everything a company has a signed contract to deliver but has not delivered yet. It is the accounting line where signed-but-unshipped sales show up. the full explainer

SCAStrategic customer agreement

An SCA is a multi-year contract where a big customer promises to buy a set amount of memory, usually at a price inside a floor-and-ceiling band, and puts cash down to hold its place in line. Micron calls them multi-year take-or-pay agreements. SK hynix and Nanya use a plainer name for the same idea: long-term agreements, or LTAs. the full explainer