https://wccftech.com/toshiba-announces-new-flash-memory-technology-xl-flash-low-latency-3d-nand/

Earlier this week at the Flash Memory Summit or FMS, Toshiba announced its new variant of 3D NAND flash memory,  XL-Flash made with the same process as their 96-layer BiCS4 3D NAND, XL-Flash uses a shorter bit and word lines to create more planes than the two to four seen on current NAND products.

Toshiba claims it will have one tenth of the read latency of current TLC devices while being based on proven scalable flash technology with better scalability compared to new material NVM type memory and will enable optimization for various architectures such as SLC, MLC and differing number of planes. Toshiba also claims in the slide it will be good for random IOPS and better QoS at shallow queue depths in an SSD compared to current technology.