A thermal design methodology for power SiGe HBTs with non-uniform emitter finger spacing - Details

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Abstract：

As　an　effective　and　feasible　method,　the　technology　of　non-uniform　emitter　finger　spacing　has　been　used　to　alleviate　the　thermal　effects　and　improve　the　uneven　temperature　profile　in　multi-finger　power　SiGe　HBTs.　However,　for　the　HBT　with　dozens　of　emitter　fingers,　designing　multiple　finger　spacing　values　becomes　trivial　and　time-consuming.　In　the　paper,　a　new　thermal　design　methodology　namely　Grouping　and　Adjusting　(GA)　method　is　proposed　to　shorten　design　time　of　non-uniform　spacing　values.　Taking　a　30-finger　HBT　for　example,　the　detailed　design　procedure　of　non-uniform　spacing　values　is　presented,　which　shows　that　the　peak　temperature　is　lowed　by　8.3K,　and　the　maximum　temperature　difference　is　improved　by　23.5%　when　compared　with　the　uniform　one.　Furthermore,　three　types　of　the　formulas　for　designing　the　spacing　values　are　proposed　to　meet　the　different　requirement　of　the　temperature　profile.　©　2010　IEEE.

Keyword：

Si-Ge alloys Millimeter waves Design Temperature control

Author Community：

[ 1 ] [Jin, D.Y.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 2 ] [Zhang, W.R.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 3 ] [Guan, B.L.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 4 ] [Chen, L.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 5 ] [Hu, N.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 6 ] [Xiao, Y.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China
[ 7 ] [Wang, R.Q.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, 100022, China

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Year： 2010

Page： 510-513

Language： English

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 1

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信息学部

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