World-most energy-efficient MRAM technology for non-volatile RAM applications

Abstract

We present the most energy-efficient 16 Mb non-volatile RAM (nvRAM) product with nearly unlimited endurance by using 28-nm embedded MRAM (eMRAM) technology. Among commercially available standalone nvRAM products, this product features the smallest package dimension of 30 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> at 16 Mb and best-in-class active power of 14 mW (read) and 27 mW (write). By extensive package testing, endurance over 1E14 cycles at - 25 °C and 10-years data retention at 89 °C have also been verified. Extending 28-nm eMRAM technology to 14-nm FinFET resulted in 33% area scaling and 2.6× faster read cycle time. This proves the potential of eMRAM technology as a low-leakage working memory solution for SoC applications.