TORONTO — Last year could be described as a tipping point for the magneto-resistive random access memory (MRAM) market. Up until then, Everspin Technologies was the only company shipping commercial MRAM products. But as Spin Transfer Technologies (STT) CEO Barry Hoberman is always quick to acknowledge, Everspin’s success has helped to pave the way for other MRAM players.
The genesis of STT goes back as far as 2001 with technology originally developed from research conducted by New York University Professor Andrew Kent. STT was formed and incubated by Boston-based Allied Minds in 2007. In September 2016, the developer of orthogonal spin transfer MRAM technology (OST-MRAM) announced it had fabricated perpendicular MRAM magnetic tunnel junctions (MTJs) as small as 20nm at its development fab based at the company’s headquarters in Fremont, Calif.
Since then, STT has delivered samples of its spin transfer torque MRAM to customers in North America and Asia, a milestone that’s significant in that it’s one of several emerging memories considered to be a next-generation candidate to replace DRAM and NAND flash, which face scaling challenges as the industry moves to smaller nodes. STT is one of a handful of firms developing MRAM, so the delivery of samples is an important proof point validating both MRAM in general, and STT’s technology in particular.
EE Times recently spoke with Hoberman about the company’s ramp up, and the opportunities for MRAM as more players go to market, including where it might be a viable replacement for incumbent technologies.