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.

Related Articles


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 November 27, 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 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