Interestingly, it seems YMTC has no intention of making 96-layer 3D NAND memory. Anonymous sources cited by DigiTimes claim the company intends to jump straight to 128-layers. According to the report, YMTC aims to offer 128-layer 3D NAND volume production in 2020. This may help the firm to narrow the gap with world's leading NAND makers.
YMTC's in-house developed Xtacking architecture is already adopted in the company's 64-layer 3D NAND engineering samples. Xtacking enables YMTC's 64-layer 3D NAND to be competitive with the available 96-layer 3D NAND solutions, the sources continued.
YMTC CEO Simon Yang was quoted in previous reports that the company is set to enter volume production of 64-layer 3D NAND flash memory in the fourth quarter of 2019. Yang added YMTC's 32-layer 3D NAND process technology is pretty mature and has been involved in production for small-volume orders.