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 Cutting edge research for the industries of tomorrow – DFKI and NICT expand cooperation
21.03.2017 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI

nachricht Molecular motor-powered biocomputers
20.03.2017 | Technische Universität Dresden

All articles from Information Technology >>>

The most recent press releases about innovation >>>

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

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Argon is not the 'dope' for metallic hydrogen

24.03.2017 | Materials Sciences

Astronomers find unexpected, dust-obscured star formation in distant galaxy

24.03.2017 | Physics and Astronomy

Gravitational wave kicks monster black hole out of galactic core

24.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>