IEEE Transactions on Device and Materials Reliability · 2009 · 46 citations · 17 references
EngineeringElectrical EngineeringCircuit TheoryMicroelectronicsPower ElectronicsDevice CharacterizationDevice ReliabilityHigh-frequency Semiconductor DevicesPower AmplifiersRadio-frequency Integrated CircuitsSemiconductor ReliabilityDegradationDevice DegradationLarge-signal AnalysisLarge-signal BehaviorPower Amplifier DesignRadio Frequency Power AmplifiersReliability DegradationVoltage
This paper examines the performance and reliability implications associated with aggressively biased cascode SiGe HBT power-amplifier cores under large-signal RF operating conditions. The role of high-power RF stress on device degradation and failure is examined in detail. General expressions for a large-signal RF safe-operating area, which account for the effect of load impedance on the dynamic output current and voltage characteristics, are presented. These show excellent agreement with experimental results. Useful operating guidelines for reliable large-signal operation are provided.
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