Featured Research

from universities, journals, and other organizations

Radiation-Resistant Chips For Sturdier Satellites

Date:
June 29, 2001
Source:
University Of California, Davis
Summary:
Space is a tough environment for electronics. A burst of radiation from a solar flare can damage a satellite's delicate circuits and knock years off its working life. Now research by a University of California, Davis, engineering student is pointing the way to more radiation-resistant microchips.

Space is a tough environment for electronics. A burst of radiation from a solar flare can damage a satellite's delicate circuits and knock years off its working life. Now research by a University of California, Davis, engineering student is pointing the way to more radiation-resistant microchips.

Anne Vandooren, a graduate student in the Department of Electrical and Computer Engineering, studied how heat, gamma rays, X-rays and proton irradiation affect microchips built with silicon-on-oxide (SOI) technology. SOI chips are used for low-power applications such as cell phones, pagers and personal organizers.

Radiation damages microchips by creating electrical charges in the insulation between transistors, said engineering professor Jean-Pierre Colinge, who supervised the project. His laboratory has previously developed ways to build SOI microchips where transistors are in less contact with insulation.

During her research, Vandooren was able to develop a general model of how radiation affects analog circuits. Analog circuits allow digital systems to connect to the real, analog world, Colinge said.

"If we expose circuits to a level of radiation, we know what to expect," said Colinge. This meant that they could design entire systems that were more resistant to radiation damage, he said.

Vandooren carried out irradiation experiments and measurements at the Lawrence Livermore National Laboratory and the Jet Propulsion Laboratory, Pasadena. Other collaborators on the project were the Catholic University of Louvain, Belgium, and the National College of Electronic and Radioelectricity Engineering in Grenoble, France.

Vandooren's thesis was selected as "best dissertation" at this year's College of Engineering commencement ceremony at UC Davis. After being courted by research labs and tech companies, she is now working on a related project for Motorola.


Story Source:

The above story is based on materials provided by University Of California, Davis. Note: Materials may be edited for content and length.


Cite This Page:

University Of California, Davis. "Radiation-Resistant Chips For Sturdier Satellites." ScienceDaily. ScienceDaily, 29 June 2001. <www.sciencedaily.com/releases/2001/06/010619072133.htm>.
University Of California, Davis. (2001, June 29). Radiation-Resistant Chips For Sturdier Satellites. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2001/06/010619072133.htm
University Of California, Davis. "Radiation-Resistant Chips For Sturdier Satellites." ScienceDaily. www.sciencedaily.com/releases/2001/06/010619072133.htm (accessed October 23, 2014).

Share This



More Matter & Energy News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) — Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Jet Sales Lift Boeing Profit 18 Pct.

Jet Sales Lift Boeing Profit 18 Pct.

Reuters - Business Video Online (Oct. 22, 2014) — Strong jet demand has pushed Boeing to raise its profit forecast for the third time, but analysts were disappointed by its small cash flow. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Internet of Things Aims to Smarten Your Life

Internet of Things Aims to Smarten Your Life

AP (Oct. 22, 2014) — As more and more Bluetooth-enabled devices are reaching consumers, developers are busy connecting them together as part of the Internet of Things. (Oct. 22) Video provided by AP
Powered by NewsLook.com
What Is Magic Leap, And Why Is It Worth $500M?

What Is Magic Leap, And Why Is It Worth $500M?

Newsy (Oct. 22, 2014) — Magic Leap isn't publicizing much more than a description of its product, but it’s been enough for Google and others to invest more than $500M. 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