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Researchers Develop New Memory Device Using FTJ Technology

Researchers at  the University of Southern California’s Viterbi School of Engineering have come up with a new memory technology based on ferroelectric tunnelling junction (FTJ) technology.

FTJ devices  promise to increase data upload speed, extend smartphone battery life, and reduce data corruption.

Han Wang, associate professor of electrical and computer engineering at the USC Viterbi School of Engineering, along with postdoctoral scholar Jiangbin Wu, PhD students Hung-Yu Chen and Xiaodong Yan, have built an FTJ-based  device using asymmetric metal and semi-metallic graphene materials.

“This breakthrough will have a significant impact on future electronics for the U.S. Army, enabling man-portable electronic systems with improved size, weight and power,” said Dr. Joe Qiu, program manager for solid-state electronics and electromagnetics at ARO, which sponsored this project.

Furthermore, the unique ability of these materials to approach atomic-scale thickness can eventually lead to even faster and more energy-efficient FTJ memory down the line.

“These materials allow us to build devices that can potentially be scaled to atomic-scale thickness,” Wang said. “This means the voltage required to read, write, and erase data can be drastically reduced which in turn can make the memory electronics much more energy efficient.”

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Wang and his fellow researchers hope that with time, their device can be scaled up and may become a replacement not just for the non-volatile memory that we see in cell phones and USB sticks, but also volatile memory like D-RAM storage devices commonly found in computers.

In addition, the device may also be engineered to hold multi-bit data states within a single cell, and with its robust endurance and retention, it has promising potential for applications in in-memory computing and other computing hardware.

This research project was funded through the University of Southern California under the US Army Research Office Young Investigator Program and the National Science Foundation.

Source: electronicsweekly

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