Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New device to improve transistor quality

05.11.2008
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.’

A copy of Dr’s Wilson and Wilcock paper can be accessed at: http://eprints.ecs.soton.ac.uk/16667/

Helene Murphy | alfa
Further information:
http://eprints.ecs.soton.ac.uk/16667/
http://www.soton.ac.uk

More articles from Information Technology:

nachricht Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale
18.01.2017 | The Hebrew University of Jerusalem

nachricht Data analysis optimizes cyber-physical systems in telecommunications and building automation
18.01.2017 | Fraunhofer-Institut für Algorithmen und Wissenschaftliches Rechnen SCAI

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>