Kioxia has notified its customers about its plans to discontinue production of its 2D NAND and 3rd Generation BiCS 3D NAND memory, reports TechNews.tw. Ceasing production of legacy types of flash memory is nothing new, but the noteworthy thing is that Kioxia will be ending the life of planar NAND memory, a type of memory that preceded 3D NAND and has been in production since the 1980s.
Kioxia is discontinuing a broad range of legacy NAND products, including planar floating-gate NAND built on 32nm (SLC that has been in production since 2009), 24nm (MLC that has been in production since 2010), and 15nm (MLC and TLC that has been in production since 2014) nodes, as well as early-generation 64-layer BiCS3 3D NAND (released around 2017). The phase-out spans all major cell types — SLC, MLC, and TLC — and covers virtually all delivery formats, including raw wafers and packaged solutions such as BGA, TSOP, eMMC, UFS, and SD cards, which indicates full retirement of older technology platforms rather than isolated SKUs.
