MESFET Care must be given to velocity saturation effects, which - PowerPoint PPT Presentation

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MESFET Care must be given to velocity saturation effects, which already appear at 3 kV/cm (~ 10 kV/cm in silicon) E.g., L =0.25 um, V DS =0.1 V give so that the transistor saturates not when pinch-off is reached close to the drain, but when v sat

MESFET
Care must be given to velocity saturation effects, which already appear at 3 kV/cm (~ 10 kV/cm in silicon) E.g., L =0.25 um, V DS =0.1 V give so that the transistor saturates not when pinch-off is reached close to the drain, but when v sat is reached by the electrons. We get an almost linear dependence of I D on V GS (instead of quadratic)

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