Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Mid Sweden University researchers set world record

04.06.2004


When it comes to the density of connections on a chip, researchers in industrial electronics at Mid Sweden University hold the unofficial world record. Their new technique makes it possible to connect chips to an underlying substrate, such as a circuit board, with a density of 80,000 connections per square centimetre.



“No one has ever managed to make so many connections, and we exceed the projected demands of industry by a wide margin. In ten years’ time the requirements will be 15,000 connections per square centimetre,” says Hjalmar Hesselbom, professor of industrial electronics at Mid Sweden University in Östersund.

Chips are used as microprocessors, for example, and there is a great need for many connections in personal computers. Today microprocessors have about 3,000 connection points across a surface of one square centimetre. The number of connections is important to accommodate the ever higher speeds we expect in our computer communications.


It is becoming more and more difficult to increase “bit speed,” which means that the only path at present is to increase the number of parallel leads, that is, “bus breadth.” This in turn requires more and more connecting points. This is being driven forward by increasing demands for faster personal computers.

Over the years various techniques have been tested to increase the number of connections per surface unit. Those tried so far have had drawbacks, such as limited and costly repairs and great temperature sensitivity.

Mid Sweden University in Östersund has now developed an entirely new technique that solves the problems. The technique is called “elastic chip sockets,” which means that the chip socket is made of elastic silicon rubber. The chips are not soldered into the socket but are pressed in with the aid of a refrigerated plate, which makes them easy to replace.

The University has pursued this type of research since the late 1990s, under the direction of Professor Hjalmar Hesselbom. The time has now come for the first doctorate to be granted. On June 11, Gunnar Norberg will defend his dissertation, which deals with these elastic chip sockets. The research team also includes Slavko Dejnovic, who will defend his licentiate thesis on June 7.

“The research team at Mid Sweden combines systems perspectives with construction engineering. Other institutions in the country conducting research in industrial electronics are more focused on either systems or materials/processes. Our strength lies in our bringing together the two to achieve research findings that advance the industry,” concludes Hjalmar Hesselbom.

Maria Lindblad | alfa
Further information:
http://www.vr.se

More articles from Information Technology:

nachricht Putting food-safety detection in the hands of consumers
15.11.2018 | Massachusetts Institute of Technology

nachricht Next stop Morocco: EU partners test innovative space robotics technologies in the Sahara desert
09.11.2018 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI

All articles from Information Technology >>>

The most recent press releases about innovation >>>

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

Im Focus: UNH scientists help provide first-ever views of elusive energy explosion

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Purdue cancer identity technology makes it easier to find a tumor's 'address'

16.11.2018 | Health and Medicine

Good preparation is half the digestion

16.11.2018 | Life Sciences

Microscope measures muscle weakness

16.11.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>