Featured Research

from universities, journals, and other organizations

New Device To Improve Transistor Quality

Date:
November 14, 2008
Source:
University of Southampton
Summary:
A new configurable chip which can correct faults in newly- manufactured transistors and can be implemented in mainstream devices such as mobile phones and computers, has been developed by engineers at the University of Southampton.

A new configurable chip, which can correct faults in newly manufactured transistors and can be implemented in mainstream devices such as mobile phones and computers, has been developed by engineers at the University of Southampton.

In a paper just published in Electronics Letters, Dr Peter Wilson and Dr Reuben Wilcock from the University's School of Electronics and Computer Science (ECS), describe the Configurable Analogue Transistor (CAT) which he and his team have developed, and for which they have a patent pending. The CAT approach can be applied to batches of transistors which in testing after manufacture prove to have an unacceptably high variability.

According to Dr Wilson, the manufacturing process for deep submicron technologies is currently very expensive, with the cost of failed devices running into huge figures. Designers create new chip designs and generally simulate how they will perform. When the silicon wafers are produced they will then undergo rigorous electrical testing to ensure that they are working. It is at this point that the designer often realises that some of the chips do not work, which creates a problem of reduced yield, i.e. the number of chips which work out of a batch reduces. This has been an increasing problem for Integrated Circuit designers over the last few years as process technology dimensions have become increasingly small, and the corresponding variability of devices worsened.

"One of the biggest challenges we face when shrinking devices in these new technology nodes is that there is increasing variability in the resulting devices and this is causing unacceptably poor yields in the circuits being produced – particularly in analogue and mixed signal devices where performance is at a premium," said Dr Wilson. "Now with CAT, we can take whole batches of chips and tighten their performance characteristics resulting in massive improvements in yield. Improvements in variability of up to 80 percent can be achieved using this approach."

According to Dr Wilson, the CAT technique can also be applied to existing products to improve their performance and longevity.

"As technology changes over time, the CAT technique allows us to reconfigure devices so that products continue to work," said Dr Wilson. "For example, remote circuits in satellites and sensor devices can be “reprogrammed” and effectively recalibrated to take account of changing characteristics over time and environmental conditions."


Story Source:

The above story is based on materials provided by University of Southampton. Note: Materials may be edited for content and length.


Cite This Page:

University of Southampton. "New Device To Improve Transistor Quality." ScienceDaily. ScienceDaily, 14 November 2008. <www.sciencedaily.com/releases/2008/11/081105083538.htm>.
University of Southampton. (2008, November 14). New Device To Improve Transistor Quality. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2008/11/081105083538.htm
University of Southampton. "New Device To Improve Transistor Quality." ScienceDaily. www.sciencedaily.com/releases/2008/11/081105083538.htm (accessed September 17, 2014).

Share This



More Computers & Math News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

FBI Finishes $1 Billion Facial Recognition System

FBI Finishes $1 Billion Facial Recognition System

Newsy (Sep. 15, 2014) The FBI announced it plans to make its Next Generation Identification System available to law enforcement, but some privacy advocates are worried. Video provided by Newsy
Powered by NewsLook.com
A+ for Apple iPhone Pre-Sales

A+ for Apple iPhone Pre-Sales

Reuters - Business Video Online (Sep. 15, 2014) Apple says it received a record 4 million first-day pre-orders for its new iPhone 6 and iPhone 6 Plus, pushing delivery dates into October. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com
Microsoft to Buy 'Minecraft' Maker for $2.5B

Microsoft to Buy 'Minecraft' Maker for $2.5B

AP (Sep. 15, 2014) Microsoft will acquire the maker of the long-running hit game Minecraft for $2.5 billion as the company continues to invest in its Xbox gaming platform and looks to grab attention on mobile phones. (Sept. 15) Video provided by AP
Powered by NewsLook.com
Manufacturer Prints 3-D Car In Record Time

Manufacturer Prints 3-D Car In Record Time

Newsy (Sep. 15, 2014) Automobile manufacturer Local Motors created a drivable electric car using a 3-D printer. Printing the body only took 44 hours. 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:
from the past week

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