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Cross-point ReRAM Integration Claimed by Intel/Micron

The Intel/Micron joint-venture now claims to have successfully integrated a Resistive-RAM (ReRAM) made with an unannounced material in a cross-point architecture, switching using an undisclosed mechanism. Pilot production wafers are supposed to be moving through the Lehi fab, and samples to customers are promised by end of this year.
HP Labs announced great results in 2010 on prototype ReRAM using titania without the need for a forming step, and then licensed the technology to Hynix with plans to bring a cross-point ReRAM to market by 2013. SanDisk/Toshiba have been working on ReRAM as an eventual replacement for NAND Flash for many years, with though a bi-layer 32Gb cross-point ReRAM was shown at ISSCC in 2013 they have so far not announced production.
Let us hope that the folks in Lehi have succeeded where HP/Hynix and SanDisk/Toshiba among others have so far failed in bringing a cross-point ReRAM to market…so this may be a “breakthrough” but it’s by no means “revolutionary.” Until the Intel/Micron legal teams decide that they can disclose what material is changing resistance and by what mechanism (including whether an electrical “forming” step is needed), the best we can do is speculate as to even how much of a breakthrough this represents.
—E.K.

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