SanDisk developing 3D memory

SanDisk Corp., a supplier of storage card products based on NAND flash memory, is planning to develop a one-time programmable three-dimensional memory technology it acquired along with Matrix Semiconductor Inc. into a read-write memory. However, despite the fact that Matrix had customers for its one-time programmable antifuse-based memory and was reportedly shipping a million chips a month prior to the acquisition, and despite the fact that SanDisk (Milpitas, Calif.) paid about $238 million to acquire Matrix, SanDisk appears to have taken the memory of the market while it works on a reprogrammable version of the antifuse..