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Start-up uncloaks its RRAM non-volatile memory technology

Posted: 07 Aug 2013 ?? ?Print Version ?Bookmark and Share

Keywords:Crossbar? RRAM? memory technology? 3D? CMOS compatibility?

Start-up memory company Crossbar Inc. recently uncloaked its Crossbar Resistive RAM (RRAM) technology. The company claims that the new memory technology will be capable of storing up to one terabyte (TB) of data on a single 200mm2 chip. Crossbar also revealed that it has developed a working Crossbar memory array at a commercial fab, a major milestone in the development of new memory technology, signalling its readiness to begin the first phase of production.

With its three-layer structure, Crossbar technology can be stacked in 3D, delivering multiple terabytes of storage on a single chip. The memory cell is based on three simple layers: A non-metallic bottom electrode, an amorphous silicon switching medium and a metallic top electrode. The resistance switching mechanism is based on the formation of a filament in the switching material when a voltage is applied between the two electrodes. This simple and very scalable memory cell structure enables an entirely new class of RRAM, which can be easily incorporated into the back end of line of any standard CMOS manufacturing fab. The chip's stackability and CMOS compatibility enable logic and memory to be easily integrated onto a single chip at the latest technology node, a capability not possible with other traditional or alternative non-volatile memory technologies.

Crossbar claims that its technology will deliver 20x faster write performance, 20x lower power consumption, and 10x the endurance at half the die size, compared to today's NAND Flash memory. With that breakthrough performance and reliability, very high capacity and low power consumption, Crossbar will enable a new wave of electronics innovation for consumer, enterprise, mobile, industrial and connected device applications.

The company plans to bring to market stand-alone chip solutions, optimised for both code and data storage, used in place of traditional NOR and NAND Flash memory. Crossbar also plans to license its technology to system on a chip (SOC) developers for integration into next-generation SOCs.





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