Change search
ReferencesLink to record
Permanent link

Direct link
Implementation of an In-situ Non-contact Temperature Controller for Active Thermal Fatigue Tests of Power Electronics
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
2006 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

A controller with thermopile IR-sensors is developed to monitor and control the temperature of power electronics during active accelerated thermal fatigue tests - power cycling. Bond wiring is the dominating method for connecting semiconductors to the package leads, distance points on a chip or chip modules within a package. 25-30\% of all package related failures of electronic devices during their operation life time can be related to bond wire failures.

To test bond wires, power cycling test can be performed to stimulate failures in bond wire connections, enabling for further development and improvements in the area of bond wires. At IMTEK (Department for microsystems engineering) University of Freiburg, new types of aluminium/copper fibre-reinforced bond wires with a diameter 300 micrometers for power electronics are tested together with a power cycling equipment. During a power cycling test the component is periodically heated, with a current flow through the chip, and cooled down.

These new bond wires are bonded on IGBT (Insulated Gate Bipolar Transistor) modules. Since it is possible to measure the overall temperature (mean value) of the chip, using IR-sensors, the developed´controller in this final thesis is robust. Further, the implemented controller can easily be extended for power cycling with e.g. 10 modules in parallel.

Place, publisher, year, edition, pages
2006. , 108 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-97059ISRN: LITH-ITN-ED-EX--06/024--SEOAI: diva2:650282
Subject / course
Electrical Engineering
Available from: 2013-09-20 Created: 2013-09-04 Last updated: 2013-09-20Bibliographically approved

Open Access in DiVA

fulltext(5674 kB)357 downloads
File information
File name FULLTEXT01.pdfFile size 5674 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Malvestam, Daniel
By organisation
Department of Science and TechnologyThe Institute of Technology
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 357 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 40 hits
ReferencesLink to record
Permanent link

Direct link