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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Herbsommer, J.A. Noquil, J. Bull, C. Lopez, O. |
| Copyright Year | 2010 |
| Description | Author affiliation: Texas Instruments Bethlehem, PA, USA (Herbsommer, J.A.; Noquil, J.; Bull, C.; Lopez, O.) |
| Abstract | Heat generated in microelectronic devices as a result of dissipated power is a major issue in power electronics applications resulting in elevated application PC board temperatures. In order to minimize the down ward heat transfer to the application board an efficient method enabling the upward flow of heat from the silicon die to the top of the microelectronic package and subsequently transferred to the environment via forced convection needs to be employed [1]. The problem is that most of the current packaging technologies have a very poor junction-to-top thermal resistance so it is very difficult to have a substantial portion of the heat flowing to the top of the device [2]. In this paper we present a novel power package design that enables heat conduction to the top surface of the microelectronic package through the use of a high thermal conductivity path which reduces by more than a factor of ten the junction-to-top thermal resistance compared to standard solutions. The thermal resistance junction-to-top is found to be as low as 1 C/W, which is comparable with thermal resistance junction to board. This allows for a significant portion of the dissipated energy in the die to be conducted to the topside of the package where natural or forced convection can transfer the heat to the air. We discuss the design, manufacturability, performance and reliability of the package as well as thermal measurements which demonstrates the ability of the package to dissipate the heat. We also compare this solution with existing solution sin the marketplace. |
| Starting Page | 398 |
| Ending Page | 400 |
| File Size | 1369592 |
| Page Count | 3 |
| File Format | |
| ISBN | 9781424447824 |
| ISSN | 10482334 |
| DOI | 10.1109/APEC.2010.5433639 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-02-21 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Electronic packaging thermal management Thermal resistance Microelectronics Heat transfer Thermal conductivity Surface resistance Thermal factors Power generation Power electronics Temperature |
| Content Type | Text |
| Resource Type | Article |
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