SanDisk Corporation announced it has begun production shipments of flash memory cards based on the company’s advanced X4 flash memory technology. This innovative new technology holds four bits of data in each memory cell, twice as many as the cells in conventional multi-level cell NAND (2-bits-per-cell) memory chips. Based on 43-nanometer process technology, the 64 Gb NAND flash chip is the highest-density single-die memory device in the world to enter production. SanDisk is shipping 8GB and 16GB SDHC cards as well as 8GB and 16GB Memory Stick PRO Duo™ cards using X4 technology.
Tel Aviv University (TAU) had provided a significant contribution to the X4 advanced error correcting and digital signal processing technology, which was licensed exclusively to SanDisk by Ramot at Tel Aviv University Ltd., TAU’s technology transfer company. “X4 took five years of development at SanDisk, and the finished product is a testament to the hard work and collaboration of the parties involved,” said Dr. Ze’ev Weinfeld, Ramot’s CEO. “Once we created the basic approach, SanDisk brought this to fruition by developing its advanced X4 controller and matching it with its advanced 43nm, 64Gb X4 memory thus making full X4 product implementation possible. This highlights the benefit commercial companies may gain from cooperation with TAU, building on our pool of talent and expertise.”
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