Netlist has filed a new patent action against Micron at the US International Trade Commission (ITC), targeting high-bandwidth memory (HBM) technology used in AI computing. The complaint opens another front in the memory industry's ongoing disputes over who controls key intellectual property behind the hardware that accelerates artificial intelligence workloads.

The filing places Micron squarely in the crosshairs over HBM, the stacked-die memory architecture that has become a critical component in AI accelerators and data center GPUs. Netlist, a company whose business centers on memory module technology and its associated patent portfolio, is now asking the ITC to act against Micron products that it claims infringe its intellectual property.

The ITC is a favored venue for patent holders in the semiconductor sector. The commission cannot award damages, but it can block imports of infringing products into the United States — a remedy that carries direct commercial consequences for memory suppliers whose manufacturing sits largely overseas. For a company like Micron, an exclusion order affecting HBM products would touch a segment that has moved from a niche offering to a strategic priority as AI infrastructure spending has expanded.

The action is described in the filing announcement as a new complaint, indicating that Netlist is pursuing a fresh legal thread against Micron rather than extending a single existing case. The dispute covers HBM technology for AI computing, the application domain where demand for high-memory bandwidth has grown most sharply.

HBM stacks multiple DRAM dies vertically and connects them through a wide interface, delivering the bandwidth that large AI models require during training and inference. Devices in this category sit next to top-tier accelerators in AI servers, and suppliers of the memory have raced to qualify their parts with major platform vendors. That commercial stakes explains why the technology has attracted litigation: control over relevant patents affects who can participate in one of the fastest-growing memory segments.

For Netlist, the complaint continues a strategy the company has pursued across the memory industry, asserting its patent portfolio through US trade venues against major DRAM manufacturers. For Micron, the new action adds legal exposure in a product line where it competes with other leading memory producers for AI-related orders.

The case will now proceed through the ITC's investigative process. The commission typically assigns such complaints to an administrative law judge, who oversees discovery and holds an evidentiary hearing before issuing an initial determination. The full commission then reviews that determination and can issue a final ruling, which in successful patent actions can result in a limited exclusion order and cease-and-desist directives against the respondent.

Any such outcome would take time. ITC investigations generally run on a defined statutory timetable measured in months from institution to final determination, and respondents commonly mount both non-infringement and patent-validity defenses along the way. Settlement is also a frequent endpoint in semiconductor patent disputes at the commission.

Neither the specific patents asserted in the new complaint, the exact Micron products named as accused articles, nor a target date for the investigation were detailed in the announcement. Those specifics will emerge in the commission's formal notice of institution once the ITC decides to institute the investigation.

The filing signals that intellectual property disputes in the AI memory supply chain remain active. As HBM volume grows with AI server deployments, patent holders are moving to claim a share of that value through the courts and the ITC. Micron and Netlist have not publicly commented beyond the announcement of the filing.