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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Zhang, Hengyun Hwang, How Yuan Bu, Lin Aw, Jerry Jie Li Rhee, Daniel Min Woo |
| Copyright Year | 2014 |
| Description | Author affiliation: Institute of Microelectronics, A∗STAR (Agency for Science, Technology, and Research) 11 Science Park Rd, Singapore Science Park II, Singapore 117685 (Zhang, Hengyun; Hwang, How Yuan; Bu, Lin; Aw, Jerry Jie Li; Rhee, Daniel Min Woo) |
| Abstract | Silicon carbide based power modules are receiving more attention due to their performance advantages over traditional silicon power modules. The demanding operation requirements such as higher power output, faster switching speed, and higher working temperature present great thermal management challenge, which necessitates the analysis and characterization of various thermal interface and bonding layers and cooling technologies. In the present work, a new 3-phase SiC DMOSFET power module is developed with six SiC dies and copper clips, and corresponding cooling technologies are examined under liquid cooling and air cooling conditions. Different thermal assembly layers including flip chip attach, clip attach, direct bonding copper (DBC), heat sink thermal interface materials are examined. It is found that the die attach and clip attach, formed with sintering silver, have the most significant effects on the power module thermal performance than the outer heat sink thermal interface materials. In addition, the die metallization size should be enlarged as much as possible to minimize the internal thermal resistance at flip chip bonding layer. A module thermal resistance is found to be 0.184 K/W under dual side liquid cooling and 0.254 K/W under air cooling condition. A liquid cooled heat sink is fabricated with ceramic based copper fins. A power cycling simulation is also conducted, which indicate that a junction temperature change (ΔΤ) of 150 oC could be attained with 1.5S/1.5S on/off condition and 960W power input. |
| Starting Page | 618 |
| Ending Page | 623 |
| File Size | 828823 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479969944 |
| DOI | 10.1109/EPTC.2014.7028370 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-12-03 |
| Publisher Place | Singapore |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Heat sinks Multichip modules Silicon carbide Thermal resistance Bonding Thermal conductivity |
| Content Type | Text |
| Resource Type | Article |
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