Design for thermally stable multi-finger power SiGe HBTs using finger length- and space-adjusted methods - Details

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Abstract：

For　power　bipolar　transistors,　the　emitter-ballasting-resistor　is　usually　used　to　improve　the　thermal　stability.　However,　the　ballasting-resistor　degrades　the　output　power,　power　gain,　power-added　efficiency　(PAE)　of　the　transistor.　In　this　paper,　the　thermal　stability　can　be　improved　substantially　by　adjusting　either　the　spacing　or　length　of　the　emitter　fingers　without　using　ballasting　resistors.　The　temperature　rise　at　the　device　center　of　the　space-adjusted　HBT　is　suppressed　by　reducing　heat　flow　from　adjacent　fingers,　and　that　of　the　length-adjusted　HBT　is　suppressed　by　reducing　heat　generation　in　the　region.

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[ 1 ] [Zhang, W.-R.]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 2 ] [Jin, D.-Y.]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 3 ] [Yang, J.-W.]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 4 ] [He, L.-J.]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 5 ] [Sha, Y.-P.]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 6 ] [Wang, Y.]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 7 ] [Zhang, W.]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China

Reprint Author's Address：

张万荣
[Zhang, W.-R.]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China

Email：

wrzhang@bjut.edu.cn

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ISAPE 2006 - 2006 7th International Symposium on Antennas, Propagation and EM Theory, Proceedings

Year： 2006

Page： 1276-1279

Language： English

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 4

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信息科学技术学院本学院/部未明确归属的数据

材料科学与工程学院本学院/部未明确归属的数据

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