2013年8月5日星期一

Business Crossbar unveils RRAM

Business Crossbar unveils RRAM

2013/08/05

Emerging from stealth-mode today, Californian start-up Crossbar unveils its Crossbar Resistive RAM (RRAM) technology.

“Today’s non-volatile memory technologies are running out of steam, hitting significant barriers as they scale to smaller manufacturing processes,” says George Minassian, CEO of Crossbar, “with our working Crossbar array, we have achieved all the major technical milestones that prove our RRAM technology is easy to manufacture and ready for commercialisation.”

The technology will be capable of storing up to 1TB of data on a 200mm2 die.

The Crossbar 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 scalable memory cell structure enables a new class of RRAM, which can be incorporated into the back end of line of any standard CMOS manufacturing fab.

Crossbar has developed a working Crossbar memory array at a commercial fab.
After completing the technology transfer to Crossbar’s R&D fab and technology analysis and optimization, Crossbar has now successfully developed its demonstration product in a commercial fab.

This working silicon is a fully integrated monolithic CMOS controller and memory array chip. The company is currently completing the characterization and optimization of this device and plans to bring its first product to market in the embedded SOC market.

Due to its simple structure, Crossbar technology can be stacked in 3D, delivering multiple terabytes of storage on a single chip. Its simplicity, stackability and CMOS compatibility enable logic and memory to be integrated onto a single chip at the latest technology node.

Crossbar’s technology will deliver 20x faster write performance, 20x lower power consumption, and 10x the endurance at half the die size, compared to today’s best-in-class NAND Flash memory, says Crossbar.

Crossbar plans to bring to market standalone chip solutions, optimized 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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