Everspin: 256Mb ST-MRAM chips coming soon

Aug 24, 2014

Here's an interesting video interview with Joe O'Hare, Everspin's Director of Product Marketing. Joe explains the company's MRAM (and ST-MRAM) tech and business, especially how it relates to enterprise SSD, which seems to be the focus of MRAM applications at the moment:

During the interview, Joe updates that everspin is now designing a 256Mb chip, and this will be the next product the company will introduce. Currently their highest-density chip is the 64Mb ST-MRAM chip (announced in 2012, but only ramped-up recently).

Micron starts mass production of 45nm 1Gb PCM chips

Jul 20, 2012

Micron announced that it is now mas-producing 45-nanometer Phase Change Memory (PCM) for mobile devices, featuring 1-gigabit (Gb) PCM plus 512-megabit (Mb) LPDDR2 in a multichip package. This is the first time that PCM memory is available in volume production.

The 45nm PCM is targeted for feature phones, with a future roadmap aimed at addressing smartphones and media tablets.

MRAM for Biomolecules concept developed using microfluidics and magnetic switches

Oct 22, 2011

Researchers from the National Institute of Standards and Technology (NIST) and University of Colorado Boulder (CU) developed a new chip that uses microfluidics and magnetic switches to trap and transport magnetic beads. This low-power device may be useful for medical devices. This technology may also lead us towards "MRAM" chips used for molecular and cellular manipulation.

In the past, magnetic particle transport chips required continuous power and even cooling. This new technology manages to overcome the power and heat issues, and offers random-access two-dimensional control and non-volatile memory. The prototype chip uses 12 spin valves (commonly used as magnetic sensors in HD read heads) which are optimized for magnetic trapping. Pulses of electric current are used to switch individual spin valve magnets “on” to trap a bead, or “off” to release it, and thereby move the bead down a ladder formed by the two lines. The beads start out suspended in salt water above the valves before being trapped in the array.