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Impact of the pulse-amplifier slew-rate on the pulsed-IV measurement of GaN HEMTs

机译:脉冲放大器摆率对GaN HEMT的脉冲IV测量的影响

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The influence of the non-ideal response of the pulse-amplifier on the trap and self-heating dynamics, and hence, on the drain-current transient in a GaN HEMT is studied with new trap and self-heating models. It is shown that the study of the trap and self-heating dynamics requires a proper correction technique that accounts for the change in trap-potential, trap time-constant and thermal response due to the non-ideal response of the pulse-amplifier. Several post-measurement data correction techniques are discussed and shown to be incapable of predicting the true drain-current transient. A pre-measurement terminal correction technique using a new version of the pulse measurement system is used to solve the problem.
机译:利用新的阱和自热模型研究了脉冲放大器的非理想响应对阱和自热动力学的影响,从而对GaN HEMT中的漏极电流瞬态产生了影响。结果表明,对阱和自热动力学的研究需要一种适当的校正技术,该技术应考虑由于脉冲放大器的非理想响应而引起的阱势,阱时间常数和热响应的变化。讨论了几种测量后数据校正技术,这些技术无法预测真正的漏电流瞬变。使用新版本的脉冲测量系统的预测量终端校正技术可解决该问题。

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