Flashcore Innovations LLC filed Flashcore Innovations LLC v. Samsung Electronics Co., Ltd. et al., No. 2:26-cv-00822 (E.D. Tex.), on September 14, 2026. Defendants are Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc.

Patents and accused products

The complaint asserts U.S. Patent 9,740,657, titled Memory device for multiple processors and memory system having the same, and U.S. Patent 8,954,644, titled Apparatus and method for controlling memory. Flashcore accuses Samsung high-bandwidth memory (HBM) modules, including HBM2 products identified in the complaint.

What the patents cover

U.S. Patent 9,740,657 covers a multi-processor memory device that can handle several memory requests at once by driving separate data channels and by splitting memory banks into sub-banks, with a mode register that can merge or split those channels. U.S. Patent 8,954,644 covers a memory-control method that adaptively decides the order in which queued memory access requests run.

U.S. Patent 9,740,657 covers a memory device with one command/control port, one address port, a data port that forms independently driven data channels to process multiple access requests at once, and memory banks divided into sub-banks that can operate on those requests in parallel.

Asserted claims of the '657 patent. The complaint identifies at least claim 1.

Claim 1 covers a multi-processor memory device with separate command, address, and multi-channel data ports, a mode register that can combine or split data channels, and memory banks divided into sub-banks so several access requests can run at once.

U.S. Patent 8,954,644 covers controlling memory by buffering access requests, ordering them so same-bank/same-row requests run successively while otherwise preserving input order, distributing requests to banks, and managing each bank's operating state.

Asserted claims of the '644 patent. The complaint identifies at least claim 6.

Claim 6 covers a memory-control method that reads queued access requests in order, checks whether the target bank buffer is full, and either sends the request to that bank buffer or pulls a request for a different bank so execution order can adapt when a bank is busy.

What the lawsuit is about

Flashcore asks the East Texas court to treat Samsung's HBM stacks as practicing a multi-channel, multi-bank memory architecture ('657 claim 1) and a request-ordering memory control method ('644 claim 6). The suit is aimed at HBM used in advanced processors and AI accelerators.

What it means

The September 14 complaint alleges infringement; it does not decide whether Samsung's HBM products infringe. That question depends on the claims, the accused products, and the evidence developed in the case.

What to watch next

Watch for Samsung's answer or early motions after service. Also watch whether Flashcore files related suits against other HBM suppliers.