Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

More Efficient Heating Processes under Vacuum

01.04.2005



Infrared Emitter From Heraeus Noblelight With Quartz Reflector

The benefits of infrared heating can also be enjoyed under vacuum. Heraeus Noblelight a company within the worldwide Heraeus precious metals and technology organisation, is showing infrared emitters for the semi-conductor sector at the Semicon Exhibition, which takes place in Munich from the 12th to 14th April. Thanks to a newly developed reflector, there have been significant improvements in heating processes carried out under vacuum conditions.

Heating during production processes carried out under vacuum is a genuine requirement, which conventional heating techniques, such as warm air ovens, cannot meet. Infrared quartz emitters have already been successfully used before now, although directing the heat by a reflector has not been possible, as normal reflectors can give off evaporated metal when heated.



Without a reflector, emitters give out their heat in all directions, so that the complete vacuum chamber is heated up. A reflector helps to target the infrared radiation and a gold reflector, for example, directs around 90% of the emitted heat onto the product.
Heraeus Noblelight has developed a new reflector, which, unlike conventional reflectors, is not made of gold or metal oxides but of synthetic quartz glass and is consequently absolutely metal-free. Heraeus Noblelight has already applied for a patent for this new design of reflector.

Tests have shown that the reflection properties of the new quartz glass reflector are comparable with those of a gold reflector. The new reflector now allows the benefits of infrared heating technology to be enjoyed in processes under vacuum, such as for high purity products and high temperature processes.

Infrared radiation generates heat directly within the material to be heated, without the need for any intermediary heat transfer medium. Consequently, large amounts of energy can be transferred very quickly. Quartz glass emitters, with a reflector of synthetic quartz glass, help to minimise contamination during the manufacture of high purity products.
Quartz glass is of high purity and is extremely heat-resistant. There is no need for reflector cooling which is normally necessary for high temperature processes, as no metal ions are evaporated off.

Heraeus Noblelight offers the complete range of infrared radiation, from near infrared (NIR) to medium wave carbon technology CIR. It can carry out trials using customers’ own materials and advises on the selection of the optimum emitters for particular applications.

Reader inquiries:
Heraeus Noblelight GmbH
Reinhard-Heraeus-Ring 7
D-63801 Kleinostheim
Stefan Fuchs
Ph +49 6181/35-8469, F +49 6181/35-16 8469541
E-Mail stefan.fuchs@heraeus.com

Press Inquiries:
Dr. Marie-Luise Bopp
Heraeus Noblelight GmbH,
Ph +49 6181/35-8547, F +49 6181/35-16 8547
E-Mail marie-luise.bopp@heraeus.com

Heraeus Noblelight GmbH, with its headquarters in Hanau and with subsidiaries in the USA, Great Britain and China, is one of the technology- and market-leaders in the production of specialist light sources. In 2003, Heraeus Noblelight had an annual turnover of 65 Million € and employs 524 people worldwide. The organisation develops, manufactures and markets infrared and ultraviolet emitters for applications in manufacture, industrial process technology, environmental protection, medicine and cosmetics, research, development and analytical laboratories.

The precious metal and technology organisation Heraeus, is a market- and technology-leader, worldwide, in the fields of precious metals, dental materials, sensors, quartz glass and specialist light sources. In 2003, the organisation achieved a turnover of 7.4 milliard €, with more than 9200 employees worldwide in more than 100 sister companies and associated companies. Because of its very wide product portfolio, the organisation, which was founded in 1851, is relatively independent of particular developments in individual industrial sectors.

Dr. Marie-Luise Bopp | Heraeus Noblelight GmbH
Further information:
http://www.heraeus-noblelight.com

More articles from Power and Electrical Engineering:

nachricht Researchers use light to remotely control curvature of plastics
23.03.2017 | North Carolina State University

nachricht TU Graz researchers show that enzyme function inhibits battery ageing
21.03.2017 | Technische Universität Graz

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

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...

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

Transport of molecular motors into cilia

28.03.2017 | Life Sciences

A novel hybrid UAV that may change the way people operate drones

28.03.2017 | Information Technology

NASA spacecraft investigate clues in radiation belts

28.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>