Featured Research

from universities, journals, and other organizations

Advancing resistive memory to improve portable electronics

Date:
August 14, 2013
Source:
University of California - Riverside
Summary:
Scientists have developed a novel way to build what many see as the next generation memory storage devices for portable electronic devices including smart phones, tablets, laptops and digital cameras.

A series of images that shows the zinc oxide nano-island on silicon and the three modes of the operation.
Credit: Image courtesy of University of California - Riverside

A team at the University of California, Riverside Bourns College of Engineering has developed a novel way to build what many see as the next generation memory storage devices for portable electronic devices including smart phones, tablets, laptops and digital cameras.

Related Articles


The device is based on the principles of resistive memory, which can be used to create memory cells that are smaller, operate at a higher speed and offer more storage capacity than flash memory cells, the current industry standard. Terabytes, not gigbytes, will be the norm with resistive memory.

The key advancement in the UC Riverside research is the creation of a zinc oxide nano-island on silicon. It eliminates the need for a second element called a selector device, which is often a diode.

"This is a significant step as the electronics industry is considering wide-scale adoption of resistive memory as an alternative for flash memory," said Jianlin Liu, a professor of electrical engineering at UC Riverside who is one of the authors of the paper. "It really simplifies the process and lowers the fabrication cost."

The findings were published online this week in the journal Scientific Reports, which is part of Nature Publishing Group. The paper is called "Multimode Resistive Switching in Single ZnO Nanoisland System."

Liu's co-authors were: Jing Qi, a former visiting scholar in Liu's lab and now an associate professor at Lanzhou University in China; Mario Olmedo, who earned his Ph.D. from UC Riverside and now works at Intel; and Jian-Guo Zheng, a director of the Laboratory of Electron and X-ray Instrumentation at UC Irvine.

Flash memory has been the standard in the electronics industry for decades. But, as flash continues to get smaller and users want higher storage capacity, it appears to reaching the end of its lifespan, Liu said.

With that in mind, resistive memory is receiving significant attention from academia and the electronics industry because it has a simple structure, high-density integration, fast operation and long endurance.

Researchers have also found that resistive memory can be scaled down in the sub 10-nanometer scale. (A nanometer is one-billionth of a meter.) Current flash memory devices are roughly using a feature size twice as large.

Resistive memory usually has a metal-oxide-metal structure in connection with a selector device. The UC Riverside team has demonstrated a novel alternative way by forming self-assembled zinc oxide nano-islands on silicon. Using a conductive atomic force microscope, the researchers observed three operation modes from the same device structure, essentially eliminating the need for a separate selector device.

UC Riverside's research effort was partially supported by the Defense Microelectronics Activity and the Microelectronics Advanced Research Corporation.


Story Source:

The above story is based on materials provided by University of California - Riverside. The original article was written by Sean Nealon. Note: Materials may be edited for content and length.


Journal Reference:

  1. Jing Qi, Mario Olmedo, Jian-Guo Zheng, Jianlin Liu. Multimode Resistive Switching in Single ZnO Nanoisland System. Scientific Reports, 2013; 3 DOI: 10.1038/srep02405

Cite This Page:

University of California - Riverside. "Advancing resistive memory to improve portable electronics." ScienceDaily. ScienceDaily, 14 August 2013. <www.sciencedaily.com/releases/2013/08/130814101427.htm>.
University of California - Riverside. (2013, August 14). Advancing resistive memory to improve portable electronics. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2013/08/130814101427.htm
University of California - Riverside. "Advancing resistive memory to improve portable electronics." ScienceDaily. www.sciencedaily.com/releases/2013/08/130814101427.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

NASA's First 3-D Printer In Space Creates Its First Object

NASA's First 3-D Printer In Space Creates Its First Object

Newsy (Nov. 26, 2014) The International Space Station is now using a proof-of-concept 3D printer to test additive printing in a weightless, isolated environment. Video provided by Newsy
Powered by NewsLook.com
Bolivian Recycling Initiative Turns Plastic Waste Into School Furniture

Bolivian Recycling Initiative Turns Plastic Waste Into School Furniture

Reuters - Innovations Video Online (Nov. 26, 2014) Innovative recycling project in La Paz separates city waste and converts plastic garbage into school furniture made from 'plastiwood'. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Blu-Ray Discs Getting Second Run As Solar Panels

Blu-Ray Discs Getting Second Run As Solar Panels

Newsy (Nov. 26, 2014) Researchers at Northwestern University are repurposing Blu-ray movies for better solar panel technology thanks to the discs' internal structures. Video provided by Newsy
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins