JournalArticle SearchList By TopicSubmit ArticleRegister
ResourcesWhite PapersGlossaryStock TrackerPresentations
6 Apr 2012 | United States
Transparent memory chips are coming
Rice University professor reveals advance at American Chemical Society national meeting
Want a see-through cellphone you can wrap around your wrist? Such a thing may be possible before long, according to Rice University chemist James Tour, whose lab has developed transparent, flexible memories using silicon oxide as the active component.
Tour revealed in a talk at the national meeting and exposition of the American Chemical Society in San Diego that the new type of memory could combine with the likes of transparent electrodes developed at Rice for flexible touchscreens and transparent integrated circuits and batteries developed at other labs in recent years.
Details of the Rice breakthrough will be published in an upcoming paper, Tour said.
"Generally, you can't see a bit of memory, because it's too small," said Tour, Rice's T.T. and W.F. Chao Chair in Chemistry as well as a professor of mechanical engineering and materials science and of computer science. "But silicon itself is not transparent. If the density of the circuits is high enough, you're going to see it."
Rice's transparent memory is based upon the 2010 discovery that pushing a strong charge through standard silicon oxide, an insulator widely used in electronics, forms channels of pure silicon crystals less than 5 nanometers wide. The initial voltage appears to strip oxygen atoms from the silicon oxide; lesser charges then repeatedly break and reconnect the circuit and turn it into nonvolatile memory. A smaller signal can be used to poll the memory state without altering it.
A flexible, transparent memory chip created by researchers at Rice University. Courtesy Tour Lab/Rice University
That discovery was reported on the front page of the New York Times. The Rice lab has since developed a working two-terminal memory device that can be stacked in a three-dimensional configuration and attached to a flexible substrate.
Source: Rice University
For more visit:Printed Electrnics World
IGZO and other active matrix backplane solutions for emerging OLED rigid and flexible displaysSilicon, metal oxide, organic, graphene, carbon nanotube (CNT) and alternatives
- Metal Oxide TFT Backplanes for Displays 2014-2024: Technologies, Forecasts, Players
- Printed and Thin Film Transistors (TFT) and Memory 2013-2023: Forecasts, Technologies, Players
- Printed, Organic & Flexible Electronics Forecasts, Players & Opportunities 2014-2024
- Inorganic and Composite Printed Electronics 2014-2024
- Printed and Chipless RFID Forecasts, Technologies & Players 2011-2021
- Introduction to Printed, Organic and Flexible Electronics
Metal Oxide TFT Backplanes for Displays 2014-2024: Technologies, Forecasts, Players
Printed and Thin Film Transistors (TFT) and Memory 2013-2023: Forecasts, Technologies, Players
Printed, Organic & Flexible Electronics Forecasts, Players & Opportunities 2014-2024
Inorganic and Composite Printed Electronics 2014-2024
Printed and Chipless RFID Forecasts, Technologies & Players 2011-2021
Introduction to Printed, Organic and Flexible Electronics
Webinar: Energy Harvesting in Building and Industrial Automation
Soldiers have their day in the sun
A novel optical concentrator
Robotics answer to bugs
AVTA'S electric bus goes the distance
Formula E course cars to be equipped with Qualcomm wireless charging