Analysis of the Damage Threshold of the GaAs Pseudomorphic High Electron Mobility Transistor Induced by the Electromagnetic Pulse
Wuli xuebao(2016)
摘要
An electromagnetic pulse(EMP)-induced damage model based on the internal damage mechanism of the Ga As pseudomorphic high electron mobility transistor(PHEMT) is established in this paper. With this model, the relationships among the damage power, damage energy, pulse width and signal amplitude are investigated. Simulation results show that the pulse width index from the damage power formula obtained here is higher than that from the empirical formula due to the hotspot transferring in the damage process of the device. It is observed that the damage energy is not a constant, which decreases with the signal amplitude increasing, and then changes little when the signal amplitude reaches up to a certain level.
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关键词
GaN,high electron mobility transistor,electromagnetic pulse,mechanism of damage
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