Abstract
TPG-core IMS concept was jointly explored in this study. Integrating high thermally conductive Thermal Pyrolytic Graphite (TPG) core into Insulated Metal Substrate (IMS) is expected to simultaneously achieve high thermal conductivity from TPG and electrical functionalities from IMS. Nearly 2x thermal conductivity and 30% weight saving was demonstrated on TPG-core IMS compared to conventional Cu-core IMS. Significant junction temperature reduction (11oC) in steady state and power cycling was revealed by the thermal analysis as the result of improved thermal spreading in plane and through the thickness. The study also proved the manufacturability and compatibility of this TPG-core IMS structure to the existing IMS production and power module assembling. The integration of TPG and IMS paves a new packaging route to increase heat load, improve reliability, simplify module design and reduce assembling cost and number of steps.
Original language | English |
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Title of host publication | Silicon Carbide and Related Materials 2019 |
Editors | Hiroshi Yano, Takeshi Ohshima, Kazuma Eto, Takeshi Mitani, Shinsuke Harada, Yasunori Tanaka |
Publisher | Trans Tech Publications Ltd |
Pages | 1022-1026 |
Number of pages | 5 |
ISBN (Print) | 9783035715798 |
DOIs | |
State | Published - 2020 |
Event | 18th International Conference on Silicon Carbide and Related Materials, ICSCRM 2019 - Kyoto, Japan Duration: Sep 29 2019 → Oct 4 2019 |
Publication series
Name | Materials Science Forum |
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Volume | 1004 MSF |
ISSN (Print) | 0255-5476 |
ISSN (Electronic) | 1662-9752 |
Conference
Conference | 18th International Conference on Silicon Carbide and Related Materials, ICSCRM 2019 |
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Country/Territory | Japan |
City | Kyoto |
Period | 09/29/19 → 10/4/19 |
Funding
This manuscript has been authored in part by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).
Keywords
- Breakdown voltage
- DBC
- Dielectric
- IMS
- Junction temperature
- MCPCB
- Power module
- SiC MOSFET
- TPG
- Thermal conductivity