Netlist has filed for a US import ban on Micron's AI memory chips, escalating a patent fight between the memory-module designer and America's largest DRAM maker from damages claims to a direct threat against Micron's supply of products aimed at the AI market.

The complaint targets Micron's chips used in artificial intelligence systems. If the request succeeds, Micron would face exclusion of those products from the US market — the country where hyperscalers are buying AI memory at record rates. The filing was reported by Channel NewsAsia.

Netlist has pursued Micron through the courts before. The company, which holds patents on memory subsystem technology including rank multiplication and load-reduction architectures, has a long record of licensing litigation against the major memory makers. Its royalty disputes with Samsung have produced some of the largest patent verdicts in memory-industry history. The new filing extends that strategy to Micron's AI-focused product line.

The venue matters. An import ban runs through the US International Trade Commission, which moves faster than district courts and can issue exclusion orders based on a single infringed patent. For a supplier whose AI memory ships into US data-center customers, an ITC exclusion order is a sharper commercial weapon than a damages award. Defendants typically design around the asserted patents or negotiate licenses while the case proceeds; the commission's schedule often delivers a decision in roughly 12 to 18 months.

For Micron, the timing is uncomfortable. The company is ramping high-bandwidth memory production to compete with SK hynix and Samsung in the AI accelerator supply chain, and any uncertainty over US import access touches its most strategically important growth market. Micron will have the opportunity to contest the infringement claims and argue that the public interest weighs against an exclusion order — a defense the ITC takes seriously when a ban could constrict supply of components in demand.

For Netlist, the filing fits its business model. The company monetizes its patent portfolio through litigation and licensing, and an ITC case raises pressure on Micron to settle. Precedent shows memory makers have paid: Netlist has previously secured substantial judgments and licensing revenue from larger rivals.

Neither company has publicly detailed which specific Micron products or patent claims the complaint covers beyond the reported scope of AI chips, and the ITC has not yet set a schedule for the investigation. A decision to institute a formal probe would trigger the commission's procedural clock.

The case now hinges on whether the ITC agrees to investigate, and whether Netlist can prove infringement of valid patents plus a domestic industry — the commission's two core requirements. If it does, Micron faces the choice of a design-around, a license, or the risk of its AI memory being locked out of the US market while the litigation runs.