Crossbar Inc is a private company based in California, USA, that develops proprietary RRAM-based memory technology. Crossbar's RRAM is based on non-conductive amorphous silicon (a-Si) as the host material for a metallic filament formation, and the switching mechanism is based on an electric field.
Crossbar's technology is based on a simple device structure that uses CMOS-friendly materials and standard manufacturing processes. The Crossbar RRAM can be stacked in 3D. In March 2016 the company signed a strategic partnership agreement with SMIC.
Crossbar raised over $85 million, with the latest financing round (round D, $35 million) announced in September 2015.