Power Electronics ♦ news digest
Materials to now make available a heat conducting compound optimised specifically for the architecture of power semiconductors in modules.
Compound semiconductors used for power applications are GaN or SiC based.
This so called thermal interface material (TIM) greatly reduces the contact resistance between the metal areas on the power semiconductor and the heat sink. On the EconoPACKTM+ of the new D Series, the contact resistance between the module and heat sink drops by 20 percent.
With a high filler content, the material reliably applies its improved properties of thermal contact resistance from the first moment the module is switched on. There is no need for a separate burn in cycle usual on many comparable materials with phase change properties.
module thermal management.”
Both companies are now planning to deepen their cooperation in the development of new materials and to extend this to new projects.
NANEO extends production
capacity with Veeco IBD tool The SPECTOR system will be used to produce high quality optical products such as lasers and those used in Raman spectroscopy, telecommunications, and aerospace
NANEO Precision IBS Coatings GmbH, an optical coatings company located in Rheinbreitbach, Germany, has recently ordered a Veeco SPECTOR Ion Beam Deposition (IBD) System.
The SPECTOR system will be used to produce high quality optics in a broad range of applications including ultrafast optics, high power lasers, Raman spectroscopy, telecommunications, and aerospace.
The optimised heat transfer extends both the service life and the reliability of the new Infineon D series EconoPACKTM+ module (on the right)
The development of the new heat conducting material focused on ease of processing in the form of honeycombs stencil- printed on modules (as shown above). This prevents air from becoming trapped in the link to the heat sink.
What’s more, the heat conducting material does not contain any substances harmful to health, meeting the requirements under the Directive 2002/95/EC (RoHS). Also, the TIM is free of silicone and does not conduct electricity.
“With this Henkel TIM, we have the best silicone-free solution for the growing requirements in the thermal management of power semiconductors at our disposal,” claims Martin Schulz, who is responsible for the qualification at the Application Engineering of Infineon Technologies AG.
“The paste simplifies the link between the module and the heat sink, optimises heat transfer, and so extends both the service life and the reliability of the modules.” The TIM was developed for use on Infineon modules and is now available for the IGBT EconoPACKTM+ module series.
The new thermal material was developed by Henkel Electronic Materials of the USA, a subsidiary of Henkel, to meet the stringent requirements of Infineon Technologies AG. Both companies have enjoyed many years of good cooperation.
“The development of LOCTITE TCP 7000 is a major step forward for high power, high temperature thermal management,” explains Henkel’s Jason Brandi, Market Development Manager. “A printable, phase change TIM with such robust thermal cycling performance is indeed a breakthrough, overcoming the limitations of alternative materials and pioneering a brand new solution for power
SPECTOR IBD Optical Coating System
Daniel Kopf, Chief Executive Officer at NANEO, comments, “Veeco’s SPECTOR IBD system allows us the process flexibility needed to meet growing demand for our high precision optics providing excellent precision and uniformity, lowest loss and high laser damage threshold. Veeco’s reliable platform makes them an ideal partner as we ramp production.”
James Northup, Veeco’s Vice President and General Manager, comments, “We are pleased NANEO chose our system for their manufacturing expansion. The SPECTOR IBD Optical Coating System enables users to manufacture the highest precision and quality films meeting the performance requirements for virtually every optical thin film coating application. We look forward to providing excellent support and service to the NANEO team as they increase production.”
NANEO specialises in the production of custom made precision optical coatings for high end applications in the laser and
March 2013
www.compoundsemiconductor.net 119
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