Abstract
We present a review of radiation effects studies on heterojunction bipolar transistors (HBTs) in order to develop a framework for qualifying devices for application in the harsh radiation environment of space. Radiation effects in different HBT material systems are considered here, including Si/SiGe, GaAs/AlGaAs, and InP/InGaAs. We discuss the different effects of ionizing and nonionizing radiation on device performance and review the strong role that device geometry plays in determining the overall radiation tolerance. We present a new comparison of radiation tolerance in conventional transistors, HBTs, and high electron mobility transistors. Finally, we conclude that with proper design, HBTs are excellent candidates for application in space.
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