Effect of cryogenic temperature characteristics on 0.18-μm silicon-on-insulator devices
2016
The experimental results of the cryogenic temperature characteristics on 0.18-μm silicon-on-insulator(SOI) metaloxide-silicon(MOS) field-effect-transistors(FETs) were presented in detail. The current and capacitance characteristics for different operating conditions ranging from 300 K to 10 K were discussed. SOI MOSFETs at cryogenic temperature exhibit improved performance, as expected. Nevertheless, operation at cryogenic temperature also demonstrates abnormal behaviors, such as the impurity freeze-out and series resistance effects. In this paper, the critical parameters of the devices were extracted with a specific method from 300 K to 10 K. Accordingly, some temperature-dependent-parameter models were created to improve fitting precision at cryogenic temperature.
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