Influence of different materials on the thermal behavior of a CDIP-8 ceramic package

Kirsten Weide; Christian Keck

doi:10.1117/12.361353

27 August 1999 Influence of different materials on the thermal behavior of a CDIP-8 ceramic package

Kirsten Weide, Christian Keck

Proceedings Volume 3884, In-Line Methods and Monitors for Process and Yield Improvement; (1999) https://doi.org/10.1117/12.361353
Event: Microelectronic Manufacturing '99, 1999, Santa Clara, CA, United States

Abstract

The temperature distribution inside a package is determined by the heat transfer from the package to the ambient, depending on the heat conductivities of the different used materials. With the help of finite element simulations the thermal behavior of the package can be characterized. In precise simulations convection and radiation effects have to be taken into account. In this paper the influence of different materials like the ceramic, the pin and die attach material and adhesive material between the chip and the die attach on the thermal resistance of the ceramic package will be investigated. A finite element model of the ceramic package including a voltage regulator on the chip was created. The simulations were carried out with the finite element program ANSYS. An easy way to take the radiation effect into account, which normally is difficult to handle in the simulation, will be shown. The results of the simulations are verified by infrared measurements. A comparison of the thermal resistance between the best case and worst case for different package materials was done. The thermal conductivity of the ceramic material shows the strongest influence on the thermal resistance.

Citation Download Citation

Kirsten Weide and Christian Keck "Influence of different materials on the thermal behavior of a CDIP-8 ceramic package", Proc. SPIE 3884, In-Line Methods and Monitors for Process and Yield Improvement, (27 August 1999); https://doi.org/10.1117/12.361353

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